diff options
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 1020 |
1 files changed, 510 insertions, 510 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 03ba5bc..7275d60 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1,5 +1,5 @@ /* - * linux/fs/ext3/inode.c + * linux/fs/ext4/inode.c * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -19,13 +19,13 @@ * 64-bit file support on 64-bit platforms by Jakub Jelinek * (jj@sunsite.ms.mff.cuni.cz) * - * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000 + * Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000 */ #include <linux/module.h> #include <linux/fs.h> #include <linux/time.h> -#include <linux/ext3_jbd.h> +#include <linux/ext4_jbd.h> #include <linux/jbd.h> #include <linux/smp_lock.h> #include <linux/highuid.h> @@ -40,21 +40,21 @@ #include "xattr.h" #include "acl.h" -static int ext3_writepage_trans_blocks(struct inode *inode); +static int ext4_writepage_trans_blocks(struct inode *inode); /* * Test whether an inode is a fast symlink. */ -static int ext3_inode_is_fast_symlink(struct inode *inode) +static int ext4_inode_is_fast_symlink(struct inode *inode) { - int ea_blocks = EXT3_I(inode)->i_file_acl ? + int ea_blocks = EXT4_I(inode)->i_file_acl ? (inode->i_sb->s_blocksize >> 9) : 0; return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0); } /* - * The ext3 forget function must perform a revoke if we are freeing data + * The ext4 forget function must perform a revoke if we are freeing data * which has been journaled. Metadata (eg. indirect blocks) must be * revoked in all cases. * @@ -62,8 +62,8 @@ static int ext3_inode_is_fast_symlink(struct inode *inode) * but there may still be a record of it in the journal, and that record * still needs to be revoked. */ -int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode, - struct buffer_head *bh, ext3_fsblk_t blocknr) +int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode, + struct buffer_head *bh, ext4_fsblk_t blocknr) { int err; @@ -81,11 +81,11 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode, * support it. Otherwise, only skip the revoke on un-journaled * data blocks. */ - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA || - (!is_metadata && !ext3_should_journal_data(inode))) { + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA || + (!is_metadata && !ext4_should_journal_data(inode))) { if (bh) { BUFFER_TRACE(bh, "call journal_forget"); - return ext3_journal_forget(handle, bh); + return ext4_journal_forget(handle, bh); } return 0; } @@ -93,10 +93,10 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode, /* * data!=journal && (is_metadata || should_journal_data(inode)) */ - BUFFER_TRACE(bh, "call ext3_journal_revoke"); - err = ext3_journal_revoke(handle, blocknr, bh); + BUFFER_TRACE(bh, "call ext4_journal_revoke"); + err = ext4_journal_revoke(handle, blocknr, bh); if (err) - ext3_abort(inode->i_sb, __FUNCTION__, + ext4_abort(inode->i_sb, __FUNCTION__, "error %d when attempting revoke", err); BUFFER_TRACE(bh, "exit"); return err; @@ -115,7 +115,7 @@ static unsigned long blocks_for_truncate(struct inode *inode) /* Give ourselves just enough room to cope with inodes in which * i_blocks is corrupt: we've seen disk corruptions in the past * which resulted in random data in an inode which looked enough - * like a regular file for ext3 to try to delete it. Things + * like a regular file for ext4 to try to delete it. Things * will go a bit crazy if that happens, but at least we should * try not to panic the whole kernel. */ if (needed < 2) @@ -123,10 +123,10 @@ static unsigned long blocks_for_truncate(struct inode *inode) /* But we need to bound the transaction so we don't overflow the * journal. */ - if (needed > EXT3_MAX_TRANS_DATA) - needed = EXT3_MAX_TRANS_DATA; + if (needed > EXT4_MAX_TRANS_DATA) + needed = EXT4_MAX_TRANS_DATA; - return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed; + return EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + needed; } /* @@ -143,11 +143,11 @@ static handle_t *start_transaction(struct inode *inode) { handle_t *result; - result = ext3_journal_start(inode, blocks_for_truncate(inode)); + result = ext4_journal_start(inode, blocks_for_truncate(inode)); if (!IS_ERR(result)) return result; - ext3_std_error(inode->i_sb, PTR_ERR(result)); + ext4_std_error(inode->i_sb, PTR_ERR(result)); return result; } @@ -159,9 +159,9 @@ static handle_t *start_transaction(struct inode *inode) */ static int try_to_extend_transaction(handle_t *handle, struct inode *inode) { - if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS) + if (handle->h_buffer_credits > EXT4_RESERVE_TRANS_BLOCKS) return 0; - if (!ext3_journal_extend(handle, blocks_for_truncate(inode))) + if (!ext4_journal_extend(handle, blocks_for_truncate(inode))) return 0; return 1; } @@ -171,16 +171,16 @@ static int try_to_extend_transaction(handle_t *handle, struct inode *inode) * so before we call here everything must be consistently dirtied against * this transaction. */ -static int ext3_journal_test_restart(handle_t *handle, struct inode *inode) +static int ext4_journal_test_restart(handle_t *handle, struct inode *inode) { jbd_debug(2, "restarting handle %p\n", handle); - return ext3_journal_restart(handle, blocks_for_truncate(inode)); + return ext4_journal_restart(handle, blocks_for_truncate(inode)); } /* * Called at the last iput() if i_nlink is zero. */ -void ext3_delete_inode (struct inode * inode) +void ext4_delete_inode (struct inode * inode) { handle_t *handle; @@ -196,7 +196,7 @@ void ext3_delete_inode (struct inode * inode) * make sure that the in-core orphan linked list is properly * cleaned up. */ - ext3_orphan_del(NULL, inode); + ext4_orphan_del(NULL, inode); goto no_delete; } @@ -204,17 +204,17 @@ void ext3_delete_inode (struct inode * inode) handle->h_sync = 1; inode->i_size = 0; if (inode->i_blocks) - ext3_truncate(inode); + ext4_truncate(inode); /* - * Kill off the orphan record which ext3_truncate created. + * Kill off the orphan record which ext4_truncate created. * AKPM: I think this can be inside the above `if'. - * Note that ext3_orphan_del() has to be able to cope with the + * Note that ext4_orphan_del() has to be able to cope with the * deletion of a non-existent orphan - this is because we don't - * know if ext3_truncate() actually created an orphan record. + * know if ext4_truncate() actually created an orphan record. * (Well, we could do this if we need to, but heck - it works) */ - ext3_orphan_del(handle, inode); - EXT3_I(inode)->i_dtime = get_seconds(); + ext4_orphan_del(handle, inode); + EXT4_I(inode)->i_dtime = get_seconds(); /* * One subtle ordering requirement: if anything has gone wrong @@ -223,12 +223,12 @@ void ext3_delete_inode (struct inode * inode) * having errors), but we can't free the inode if the mark_dirty * fails. */ - if (ext3_mark_inode_dirty(handle, inode)) + if (ext4_mark_inode_dirty(handle, inode)) /* If that failed, just do the required in-core inode clear. */ clear_inode(inode); else - ext3_free_inode(handle, inode); - ext3_journal_stop(handle); + ext4_free_inode(handle, inode); + ext4_journal_stop(handle); return; no_delete: clear_inode(inode); /* We must guarantee clearing of inode... */ @@ -254,14 +254,14 @@ static int verify_chain(Indirect *from, Indirect *to) } /** - * ext3_block_to_path - parse the block number into array of offsets + * ext4_block_to_path - parse the block number into array of offsets * @inode: inode in question (we are only interested in its superblock) * @i_block: block number to be parsed * @offsets: array to store the offsets in * @boundary: set this non-zero if the referred-to block is likely to be * followed (on disk) by an indirect block. * - * To store the locations of file's data ext3 uses a data structure common + * To store the locations of file's data ext4 uses a data structure common * for UNIX filesystems - tree of pointers anchored in the inode, with * data blocks at leaves and indirect blocks in intermediate nodes. * This function translates the block number into path in that tree - @@ -284,39 +284,39 @@ static int verify_chain(Indirect *from, Indirect *to) * get there at all. */ -static int ext3_block_to_path(struct inode *inode, +static int ext4_block_to_path(struct inode *inode, long i_block, int offsets[4], int *boundary) { - int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb); - int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb); - const long direct_blocks = EXT3_NDIR_BLOCKS, + int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb); + int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb); + const long direct_blocks = EXT4_NDIR_BLOCKS, indirect_blocks = ptrs, double_blocks = (1 << (ptrs_bits * 2)); int n = 0; int final = 0; if (i_block < 0) { - ext3_warning (inode->i_sb, "ext3_block_to_path", "block < 0"); + ext4_warning (inode->i_sb, "ext4_block_to_path", "block < 0"); } else if (i_block < direct_blocks) { offsets[n++] = i_block; final = direct_blocks; } else if ( (i_block -= direct_blocks) < indirect_blocks) { - offsets[n++] = EXT3_IND_BLOCK; + offsets[n++] = EXT4_IND_BLOCK; offsets[n++] = i_block; final = ptrs; } else if ((i_block -= indirect_blocks) < double_blocks) { - offsets[n++] = EXT3_DIND_BLOCK; + offsets[n++] = EXT4_DIND_BLOCK; offsets[n++] = i_block >> ptrs_bits; offsets[n++] = i_block & (ptrs - 1); final = ptrs; } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) { - offsets[n++] = EXT3_TIND_BLOCK; + offsets[n++] = EXT4_TIND_BLOCK; offsets[n++] = i_block >> (ptrs_bits * 2); offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1); offsets[n++] = i_block & (ptrs - 1); final = ptrs; } else { - ext3_warning(inode->i_sb, "ext3_block_to_path", "block > big"); + ext4_warning(inode->i_sb, "ext4_block_to_path", "block > big"); } if (boundary) *boundary = final - 1 - (i_block & (ptrs - 1)); @@ -324,7 +324,7 @@ static int ext3_block_to_path(struct inode *inode, } /** - * ext3_get_branch - read the chain of indirect blocks leading to data + * ext4_get_branch - read the chain of indirect blocks leading to data * @inode: inode in question * @depth: depth of the chain (1 - direct pointer, etc.) * @offsets: offsets of pointers in inode/indirect blocks @@ -352,7 +352,7 @@ static int ext3_block_to_path(struct inode *inode, * or when it reads all @depth-1 indirect blocks successfully and finds * the whole chain, all way to the data (returns %NULL, *err == 0). */ -static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets, +static Indirect *ext4_get_branch(struct inode *inode, int depth, int *offsets, Indirect chain[4], int *err) { struct super_block *sb = inode->i_sb; @@ -361,7 +361,7 @@ static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets, *err = 0; /* i_data is not going away, no lock needed */ - add_chain (chain, NULL, EXT3_I(inode)->i_data + *offsets); + add_chain (chain, NULL, EXT4_I(inode)->i_data + *offsets); if (!p->key) goto no_block; while (--depth) { @@ -389,7 +389,7 @@ no_block: } /** - * ext3_find_near - find a place for allocation with sufficient locality + * ext4_find_near - find a place for allocation with sufficient locality * @inode: owner * @ind: descriptor of indirect block. * @@ -408,13 +408,13 @@ no_block: * * Caller must make sure that @ind is valid and will stay that way. */ -static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind) +static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind) { - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_inode_info *ei = EXT4_I(inode); __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data; __le32 *p; - ext3_fsblk_t bg_start; - ext3_grpblk_t colour; + ext4_fsblk_t bg_start; + ext4_grpblk_t colour; /* Try to find previous block */ for (p = ind->p - 1; p >= start; p--) { @@ -430,14 +430,14 @@ static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind) * It is going to be referred to from the inode itself? OK, just put it * into the same cylinder group then. */ - bg_start = ext3_group_first_block_no(inode->i_sb, ei->i_block_group); + bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group); colour = (current->pid % 16) * - (EXT3_BLOCKS_PER_GROUP(inode->i_sb) / 16); + (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16); return bg_start + colour; } /** - * ext3_find_goal - find a prefered place for allocation. + * ext4_find_goal - find a prefered place for allocation. * @inode: owner * @block: block we want * @chain: chain of indirect blocks @@ -448,12 +448,12 @@ static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind) * stores it in *@goal and returns zero. */ -static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block, +static ext4_fsblk_t ext4_find_goal(struct inode *inode, long block, Indirect chain[4], Indirect *partial) { - struct ext3_block_alloc_info *block_i; + struct ext4_block_alloc_info *block_i; - block_i = EXT3_I(inode)->i_block_alloc_info; + block_i = EXT4_I(inode)->i_block_alloc_info; /* * try the heuristic for sequential allocation, @@ -464,11 +464,11 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block, return block_i->last_alloc_physical_block + 1; } - return ext3_find_near(inode, partial); + return ext4_find_near(inode, partial); } /** - * ext3_blks_to_allocate: Look up the block map and count the number + * ext4_blks_to_allocate: Look up the block map and count the number * of direct blocks need to be allocated for the given branch. * * @branch: chain of indirect blocks @@ -479,7 +479,7 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block, * return the total number of blocks to be allocate, including the * direct and indirect blocks. */ -static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks, +static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned long blks, int blocks_to_boundary) { unsigned long count = 0; @@ -506,7 +506,7 @@ static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks, } /** - * ext3_alloc_blocks: multiple allocate blocks needed for a branch + * ext4_alloc_blocks: multiple allocate blocks needed for a branch * @indirect_blks: the number of blocks need to allocate for indirect * blocks * @@ -515,14 +515,14 @@ static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks, * @blks: on return it will store the total number of allocated * direct blocks */ -static int ext3_alloc_blocks(handle_t *handle, struct inode *inode, - ext3_fsblk_t goal, int indirect_blks, int blks, - ext3_fsblk_t new_blocks[4], int *err) +static int ext4_alloc_blocks(handle_t *handle, struct inode *inode, + ext4_fsblk_t goal, int indirect_blks, int blks, + ext4_fsblk_t new_blocks[4], int *err) { int target, i; unsigned long count = 0; int index = 0; - ext3_fsblk_t current_block = 0; + ext4_fsblk_t current_block = 0; int ret = 0; /* @@ -538,7 +538,7 @@ static int ext3_alloc_blocks(handle_t *handle, struct inode *inode, while (1) { count = target; /* allocating blocks for indirect blocks and direct blocks */ - current_block = ext3_new_blocks(handle,inode,goal,&count,err); + current_block = ext4_new_blocks(handle,inode,goal,&count,err); if (*err) goto failed_out; @@ -562,12 +562,12 @@ static int ext3_alloc_blocks(handle_t *handle, struct inode *inode, return ret; failed_out: for (i = 0; i <index; i++) - ext3_free_blocks(handle, inode, new_blocks[i], 1); + ext4_free_blocks(handle, inode, new_blocks[i], 1); return ret; } /** - * ext3_alloc_branch - allocate and set up a chain of blocks. + * ext4_alloc_branch - allocate and set up a chain of blocks. * @inode: owner * @indirect_blks: number of allocated indirect blocks * @blks: number of allocated direct blocks @@ -578,21 +578,21 @@ failed_out: * links them into chain and (if we are synchronous) writes them to disk. * In other words, it prepares a branch that can be spliced onto the * inode. It stores the information about that chain in the branch[], in - * the same format as ext3_get_branch() would do. We are calling it after + * the same format as ext4_get_branch() would do. We are calling it after * we had read the existing part of chain and partial points to the last * triple of that (one with zero ->key). Upon the exit we have the same - * picture as after the successful ext3_get_block(), except that in one + * picture as after the successful ext4_get_block(), except that in one * place chain is disconnected - *branch->p is still zero (we did not * set the last link), but branch->key contains the number that should * be placed into *branch->p to fill that gap. * * If allocation fails we free all blocks we've allocated (and forget * their buffer_heads) and return the error value the from failed - * ext3_alloc_block() (normally -ENOSPC). Otherwise we set the chain + * ext4_alloc_block() (normally -ENOSPC). Otherwise we set the chain * as described above and return 0. */ -static int ext3_alloc_branch(handle_t *handle, struct inode *inode, - int indirect_blks, int *blks, ext3_fsblk_t goal, +static int ext4_alloc_branch(handle_t *handle, struct inode *inode, + int indirect_blks, int *blks, ext4_fsblk_t goal, int *offsets, Indirect *branch) { int blocksize = inode->i_sb->s_blocksize; @@ -600,10 +600,10 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode, int err = 0; struct buffer_head *bh; int num; - ext3_fsblk_t new_blocks[4]; - ext3_fsblk_t current_block; + ext4_fsblk_t new_blocks[4]; + ext4_fsblk_t current_block; - num = ext3_alloc_blocks(handle, inode, goal, indirect_blks, + num = ext4_alloc_blocks(handle, inode, goal, indirect_blks, *blks, new_blocks, &err); if (err) return err; @@ -622,7 +622,7 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode, branch[n].bh = bh; lock_buffer(bh); BUFFER_TRACE(bh, "call get_create_access"); - err = ext3_journal_get_create_access(handle, bh); + err = ext4_journal_get_create_access(handle, bh); if (err) { unlock_buffer(bh); brelse(bh); @@ -647,8 +647,8 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode, set_buffer_uptodate(bh); unlock_buffer(bh); - BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); - err = ext3_journal_dirty_metadata(handle, bh); + BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata"); + err = ext4_journal_dirty_metadata(handle, bh); if (err) goto failed; } @@ -658,22 +658,22 @@ failed: /* Allocation failed, free what we already allocated */ for (i = 1; i <= n ; i++) { BUFFER_TRACE(branch[i].bh, "call journal_forget"); - ext3_journal_forget(handle, branch[i].bh); + ext4_journal_forget(handle, branch[i].bh); } for (i = 0; i <indirect_blks; i++) - ext3_free_blocks(handle, inode, new_blocks[i], 1); + ext4_free_blocks(handle, inode, new_blocks[i], 1); - ext3_free_blocks(handle, inode, new_blocks[i], num); + ext4_free_blocks(handle, inode, new_blocks[i], num); return err; } /** - * ext3_splice_branch - splice the allocated branch onto inode. + * ext4_splice_branch - splice the allocated branch onto inode. * @inode: owner * @block: (logical) number of block we are adding * @chain: chain of indirect blocks (with a missing link - see - * ext3_alloc_branch) + * ext4_alloc_branch) * @where: location of missing link * @num: number of indirect blocks we are adding * @blks: number of direct blocks we are adding @@ -682,15 +682,15 @@ failed: * inode (->i_blocks, etc.). In case of success we end up with the full * chain to new block and return 0. */ -static int ext3_splice_branch(handle_t *handle, struct inode *inode, +static int ext4_splice_branch(handle_t *handle, struct inode *inode, long block, Indirect *where, int num, int blks) { int i; int err = 0; - struct ext3_block_alloc_info *block_i; - ext3_fsblk_t current_block; + struct ext4_block_alloc_info *block_i; + ext4_fsblk_t current_block; - block_i = EXT3_I(inode)->i_block_alloc_info; + block_i = EXT4_I(inode)->i_block_alloc_info; /* * If we're splicing into a [td]indirect block (as opposed to the * inode) then we need to get write access to the [td]indirect block @@ -698,7 +698,7 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, */ if (where->bh) { BUFFER_TRACE(where->bh, "get_write_access"); - err = ext3_journal_get_write_access(handle, where->bh); + err = ext4_journal_get_write_access(handle, where->bh); if (err) goto err_out; } @@ -730,7 +730,7 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, /* We are done with atomic stuff, now do the rest of housekeeping */ inode->i_ctime = CURRENT_TIME_SEC; - ext3_mark_inode_dirty(handle, inode); + ext4_mark_inode_dirty(handle, inode); /* had we spliced it onto indirect block? */ if (where->bh) { @@ -740,11 +740,11 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, * onto an indirect block at the very end of the file (the * file is growing) then we *will* alter the inode to reflect * the new i_size. But that is not done here - it is done in - * generic_commit_write->__mark_inode_dirty->ext3_dirty_inode. + * generic_commit_write->__mark_inode_dirty->ext4_dirty_inode. */ jbd_debug(5, "splicing indirect only\n"); - BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata"); - err = ext3_journal_dirty_metadata(handle, where->bh); + BUFFER_TRACE(where->bh, "call ext4_journal_dirty_metadata"); + err = ext4_journal_dirty_metadata(handle, where->bh); if (err) goto err_out; } else { @@ -759,10 +759,10 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, err_out: for (i = 1; i <= num; i++) { BUFFER_TRACE(where[i].bh, "call journal_forget"); - ext3_journal_forget(handle, where[i].bh); - ext3_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1); + ext4_journal_forget(handle, where[i].bh); + ext4_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1); } - ext3_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks); + ext4_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks); return err; } @@ -786,7 +786,7 @@ err_out: * return = 0, if plain lookup failed. * return < 0, error case. */ -int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, +int ext4_get_blocks_handle(handle_t *handle, struct inode *inode, sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result, int create, int extend_disksize) @@ -795,22 +795,22 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, int offsets[4]; Indirect chain[4]; Indirect *partial; - ext3_fsblk_t goal; + ext4_fsblk_t goal; int indirect_blks; int blocks_to_boundary = 0; int depth; - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_inode_info *ei = EXT4_I(inode); int count = 0; - ext3_fsblk_t first_block = 0; + ext4_fsblk_t first_block = 0; J_ASSERT(handle != NULL || create == 0); - depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary); + depth = ext4_block_to_path(inode,iblock,offsets,&blocks_to_boundary); if (depth == 0) goto out; - partial = ext3_get_branch(inode, depth, offsets, chain, &err); + partial = ext4_get_branch(inode, depth, offsets, chain, &err); /* Simplest case - block found, no allocation needed */ if (!partial) { @@ -819,7 +819,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, count++; /*map more blocks*/ while (count < maxblocks && count <= blocks_to_boundary) { - ext3_fsblk_t blk; + ext4_fsblk_t blk; if (!verify_chain(chain, partial)) { /* @@ -852,7 +852,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, /* * If the indirect block is missing while we are reading - * the chain(ext3_get_branch() returns -EAGAIN err), or + * the chain(ext4_get_branch() returns -EAGAIN err), or * if the chain has been changed after we grab the semaphore, * (either because another process truncated this branch, or * another get_block allocated this branch) re-grab the chain to see if @@ -867,7 +867,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, brelse(partial->bh); partial--; } - partial = ext3_get_branch(inode, depth, offsets, chain, &err); + partial = ext4_get_branch(inode, depth, offsets, chain, &err); if (!partial) { count++; mutex_unlock(&ei->truncate_mutex); @@ -883,9 +883,9 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, * allocation info here if necessary */ if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info)) - ext3_init_block_alloc_info(inode); + ext4_init_block_alloc_info(inode); - goal = ext3_find_goal(inode, iblock, chain, partial); + goal = ext4_find_goal(inode, iblock, chain, partial); /* the number of blocks need to allocate for [d,t]indirect blocks */ indirect_blks = (chain + depth) - partial - 1; @@ -894,28 +894,28 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, * Next look up the indirect map to count the totoal number of * direct blocks to allocate for this branch. */ - count = ext3_blks_to_allocate(partial, indirect_blks, + count = ext4_blks_to_allocate(partial, indirect_blks, maxblocks, blocks_to_boundary); /* - * Block out ext3_truncate while we alter the tree + * Block out ext4_truncate while we alter the tree */ - err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal, + err = ext4_alloc_branch(handle, inode, indirect_blks, &count, goal, offsets + (partial - chain), partial); /* - * The ext3_splice_branch call will free and forget any buffers + * The ext4_splice_branch call will free and forget any buffers * on the new chain if there is a failure, but that risks using * up transaction credits, especially for bitmaps where the * credits cannot be returned. Can we handle this somehow? We * may need to return -EAGAIN upwards in the worst case. --sct */ if (!err) - err = ext3_splice_branch(handle, inode, iblock, + err = ext4_splice_branch(handle, inode, iblock, partial, indirect_blks, count); /* * i_disksize growing is protected by truncate_mutex. Don't forget to * protect it if you're about to implement concurrent - * ext3_get_block() -bzzz + * ext4_get_block() -bzzz */ if (!err && extend_disksize && inode->i_size > ei->i_disksize) ei->i_disksize = inode->i_size; @@ -942,9 +942,9 @@ out: return err; } -#define DIO_CREDITS (EXT3_RESERVE_TRANS_BLOCKS + 32) +#define DIO_CREDITS (EXT4_RESERVE_TRANS_BLOCKS + 32) -static int ext3_get_block(struct inode *inode, sector_t iblock, +static int ext4_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { handle_t *handle = journal_current_handle(); @@ -962,29 +962,29 @@ static int ext3_get_block(struct inode *inode, sector_t iblock, * Huge direct-io writes can hold off commits for long * periods of time. Let this commit run. */ - ext3_journal_stop(handle); - handle = ext3_journal_start(inode, DIO_CREDITS); + ext4_journal_stop(handle); + handle = ext4_journal_start(inode, DIO_CREDITS); if (IS_ERR(handle)) ret = PTR_ERR(handle); goto get_block; } - if (handle->h_buffer_credits <= EXT3_RESERVE_TRANS_BLOCKS) { + if (handle->h_buffer_credits <= EXT4_RESERVE_TRANS_BLOCKS) { /* * Getting low on buffer credits... */ - ret = ext3_journal_extend(handle, DIO_CREDITS); + ret = ext4_journal_extend(handle, DIO_CREDITS); if (ret > 0) { /* * Couldn't extend the transaction. Start a new one. */ - ret = ext3_journal_restart(handle, DIO_CREDITS); + ret = ext4_journal_restart(handle, DIO_CREDITS); } } get_block: if (ret == 0) { - ret = ext3_get_blocks_handle(handle, inode, iblock, + ret = ext4_get_blocks_handle(handle, inode, iblock, max_blocks, bh_result, create, 0); if (ret > 0) { bh_result->b_size = (ret << inode->i_blkbits); @@ -997,7 +997,7 @@ get_block: /* * `handle' can be NULL if create is zero */ -struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode, +struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode, long block, int create, int *errp) { struct buffer_head dummy; @@ -1008,10 +1008,10 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode, dummy.b_state = 0; dummy.b_blocknr = -1000; buffer_trace_init(&dummy.b_history); - err = ext3_get_blocks_handle(handle, inode, block, 1, + err = ext4_get_blocks_handle(handle, inode, block, 1, &dummy, create, 1); /* - * ext3_get_blocks_handle() returns number of blocks + * ext4_get_blocks_handle() returns number of blocks * mapped. 0 in case of a HOLE. */ if (err > 0) { @@ -1035,19 +1035,19 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode, * Now that we do not always journal data, we should * keep in mind whether this should always journal the * new buffer as metadata. For now, regular file - * writes use ext3_get_block instead, so it's not a + * writes use ext4_get_block instead, so it's not a * problem. */ lock_buffer(bh); BUFFER_TRACE(bh, "call get_create_access"); - fatal = ext3_journal_get_create_access(handle, bh); + fatal = ext4_journal_get_create_access(handle, bh); if (!fatal && !buffer_uptodate(bh)) { memset(bh->b_data,0,inode->i_sb->s_blocksize); set_buffer_uptodate(bh); } unlock_buffer(bh); - BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); - err = ext3_journal_dirty_metadata(handle, bh); + BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata"); + err = ext4_journal_dirty_metadata(handle, bh); if (!fatal) fatal = err; } else { @@ -1064,12 +1064,12 @@ err: return NULL; } -struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode, +struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode, int block, int create, int *err) { struct buffer_head * bh; - bh = ext3_getblk(handle, inode, block, create, err); + bh = ext4_getblk(handle, inode, block, create, err); if (!bh) return bh; if (buffer_uptodate(bh)) @@ -1118,17 +1118,17 @@ static int walk_page_buffers( handle_t *handle, /* * To preserve ordering, it is essential that the hole instantiation and * the data write be encapsulated in a single transaction. We cannot - * close off a transaction and start a new one between the ext3_get_block() + * close off a transaction and start a new one between the ext4_get_block() * and the commit_write(). So doing the journal_start at the start of * prepare_write() is the right place. * - * Also, this function can nest inside ext3_writepage() -> - * block_write_full_page(). In that case, we *know* that ext3_writepage() + * Also, this function can nest inside ext4_writepage() -> + * block_write_full_page(). In that case, we *know* that ext4_writepage() * has generated enough buffer credits to do the whole page. So we won't * block on the journal in that case, which is good, because the caller may * be PF_MEMALLOC. * - * By accident, ext3 can be reentered when a transaction is open via + * By accident, ext4 can be reentered when a transaction is open via * quota file writes. If we were to commit the transaction while thus * reentered, there can be a deadlock - we would be holding a quota * lock, and the commit would never complete if another thread had a @@ -1145,48 +1145,48 @@ static int do_journal_get_write_access(handle_t *handle, { if (!buffer_mapped(bh) || buffer_freed(bh)) return 0; - return ext3_journal_get_write_access(handle, bh); + return ext4_journal_get_write_access(handle, bh); } -static int ext3_prepare_write(struct file *file, struct page *page, +static int ext4_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) { struct inode *inode = page->mapping->host; - int ret, needed_blocks = ext3_writepage_trans_blocks(inode); + int ret, needed_blocks = ext4_writepage_trans_blocks(inode); handle_t *handle; int retries = 0; retry: - handle = ext3_journal_start(inode, needed_blocks); + handle = ext4_journal_start(inode, needed_blocks); if (IS_ERR(handle)) { ret = PTR_ERR(handle); goto out; } - if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) - ret = nobh_prepare_write(page, from, to, ext3_get_block); + if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) + ret = nobh_prepare_write(page, from, to, ext4_get_block); else - ret = block_prepare_write(page, from, to, ext3_get_block); + ret = block_prepare_write(page, from, to, ext4_get_block); if (ret) goto prepare_write_failed; - if (ext3_should_journal_data(inode)) { + if (ext4_should_journal_data(inode)) { ret = walk_page_buffers(handle, page_buffers(page), from, to, NULL, do_journal_get_write_access); } prepare_write_failed: if (ret) - ext3_journal_stop(handle); - if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) + ext4_journal_stop(handle); + if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; out: return ret; } -int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh) +int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh) { int err = journal_dirty_data(handle, bh); if (err) - ext3_journal_abort_handle(__FUNCTION__, __FUNCTION__, + ext4_journal_abort_handle(__FUNCTION__, __FUNCTION__, bh, handle,err); return err; } @@ -1197,25 +1197,25 @@ static int commit_write_fn(handle_t *handle, struct buffer_head *bh) if (!buffer_mapped(bh) || buffer_freed(bh)) return 0; set_buffer_uptodate(bh); - return ext3_journal_dirty_metadata(handle, bh); + return ext4_journal_dirty_metadata(handle, bh); } /* * We need to pick up the new inode size which generic_commit_write gave us * `file' can be NULL - eg, when called from page_symlink(). * - * ext3 never places buffers on inode->i_mapping->private_list. metadata + * ext4 never places buffers on inode->i_mapping->private_list. metadata * buffers are managed internally. */ -static int ext3_ordered_commit_write(struct file *file, struct page *page, +static int ext4_ordered_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { - handle_t *handle = ext3_journal_current_handle(); + handle_t *handle = ext4_journal_current_handle(); struct inode *inode = page->mapping->host; int ret = 0, ret2; ret = walk_page_buffers(handle, page_buffers(page), - from, to, NULL, ext3_journal_dirty_data); + from, to, NULL, ext4_journal_dirty_data); if (ret == 0) { /* @@ -1226,43 +1226,43 @@ static int ext3_ordered_commit_write(struct file *file, struct page *page, loff_t new_i_size; new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to; - if (new_i_size > EXT3_I(inode)->i_disksize) - EXT3_I(inode)->i_disksize = new_i_size; + if (new_i_size > EXT4_I(inode)->i_disksize) + EXT4_I(inode)->i_disksize = new_i_size; ret = generic_commit_write(file, page, from, to); } - ret2 = ext3_journal_stop(handle); + ret2 = ext4_journal_stop(handle); if (!ret) ret = ret2; return ret; } -static int ext3_writeback_commit_write(struct file *file, struct page *page, +static int ext4_writeback_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { - handle_t *handle = ext3_journal_current_handle(); + handle_t *handle = ext4_journal_current_handle(); struct inode *inode = page->mapping->host; int ret = 0, ret2; loff_t new_i_size; new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to; - if (new_i_size > EXT3_I(inode)->i_disksize) - EXT3_I(inode)->i_disksize = new_i_size; + if (new_i_size > EXT4_I(inode)->i_disksize) + EXT4_I(inode)->i_disksize = new_i_size; - if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) + if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) ret = nobh_commit_write(file, page, from, to); else ret = generic_commit_write(file, page, from, to); - ret2 = ext3_journal_stop(handle); + ret2 = ext4_journal_stop(handle); if (!ret) ret = ret2; return ret; } -static int ext3_journalled_commit_write(struct file *file, +static int ext4_journalled_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { - handle_t *handle = ext3_journal_current_handle(); + handle_t *handle = ext4_journal_current_handle(); struct inode *inode = page->mapping->host; int ret = 0, ret2; int partial = 0; @@ -1279,14 +1279,14 @@ static int ext3_journalled_commit_write(struct file *file, SetPageUptodate(page); if (pos > inode->i_size) i_size_write(inode, pos); - EXT3_I(inode)->i_state |= EXT3_STATE_JDATA; - if (inode->i_size > EXT3_I(inode)->i_disksize) { - EXT3_I(inode)->i_disksize = inode->i_size; - ret2 = ext3_mark_inode_dirty(handle, inode); + EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; + if (inode->i_size > EXT4_I(inode)->i_disksize) { + EXT4_I(inode)->i_disksize = inode->i_size; + ret2 = ext4_mark_inode_dirty(handle, inode); if (!ret) ret = ret2; } - ret2 = ext3_journal_stop(handle); + ret2 = ext4_journal_stop(handle); if (!ret) ret = ret2; return ret; @@ -1297,7 +1297,7 @@ static int ext3_journalled_commit_write(struct file *file, * the swapper to find the on-disk block of a specific piece of data. * * Naturally, this is dangerous if the block concerned is still in the - * journal. If somebody makes a swapfile on an ext3 data-journaling + * journal. If somebody makes a swapfile on an ext4 data-journaling * filesystem and enables swap, then they may get a nasty shock when the * data getting swapped to that swapfile suddenly gets overwritten by * the original zero's written out previously to the journal and @@ -1306,13 +1306,13 @@ static int ext3_journalled_commit_write(struct file *file, * So, if we see any bmap calls here on a modified, data-journaled file, * take extra steps to flush any blocks which might be in the cache. */ -static sector_t ext3_bmap(struct address_space *mapping, sector_t block) +static sector_t ext4_bmap(struct address_space *mapping, sector_t block) { struct inode *inode = mapping->host; journal_t *journal; int err; - if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) { + if (EXT4_I(inode)->i_state & EXT4_STATE_JDATA) { /* * This is a REALLY heavyweight approach, but the use of * bmap on dirty files is expected to be extremely rare: @@ -1324,15 +1324,15 @@ static sector_t ext3_bmap(struct address_space *mapping, sector_t block) * in trouble if mortal users could trigger this path at * will.) * - * NB. EXT3_STATE_JDATA is not set on files other than + * NB. EXT4_STATE_JDATA is not set on files other than * regular files. If somebody wants to bmap a directory * or symlink and gets confused because the buffer * hasn't yet been flushed to disk, they deserve * everything they get. */ - EXT3_I(inode)->i_state &= ~EXT3_STATE_JDATA; - journal = EXT3_JOURNAL(inode); + EXT4_I(inode)->i_state &= ~EXT4_STATE_JDATA; + journal = EXT4_JOURNAL(inode); journal_lock_updates(journal); err = journal_flush(journal); journal_unlock_updates(journal); @@ -1341,7 +1341,7 @@ static sector_t ext3_bmap(struct address_space *mapping, sector_t block) return 0; } - return generic_block_bmap(mapping,block,ext3_get_block); + return generic_block_bmap(mapping,block,ext4_get_block); } static int bget_one(handle_t *handle, struct buffer_head *bh) @@ -1359,14 +1359,14 @@ static int bput_one(handle_t *handle, struct buffer_head *bh) static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh) { if (buffer_mapped(bh)) - return ext3_journal_dirty_data(handle, bh); + return ext4_journal_dirty_data(handle, bh); return 0; } /* * Note that we always start a transaction even if we're not journalling * data. This is to preserve ordering: any hole instantiation within - * __block_write_full_page -> ext3_get_block() should be journalled + * __block_write_full_page -> ext4_get_block() should be journalled * along with the data so we don't crash and then get metadata which * refers to old data. * @@ -1374,14 +1374,14 @@ static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh) * * Problem: * - * ext3_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() -> - * ext3_writepage() + * ext4_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() -> + * ext4_writepage() * * Similar for: * - * ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ... + * ext4_file_write() -> generic_file_write() -> __alloc_pages() -> ... * - * Same applies to ext3_get_block(). We will deadlock on various things like + * Same applies to ext4_get_block(). We will deadlock on various things like * lock_journal and i_truncate_mutex. * * Setting PF_MEMALLOC here doesn't work - too many internal memory @@ -1415,7 +1415,7 @@ static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh) * AKPM2: if all the page's buffers are mapped to disk and !data=journal, * we don't need to open a transaction here. */ -static int ext3_ordered_writepage(struct page *page, +static int ext4_ordered_writepage(struct page *page, struct writeback_control *wbc) { struct inode *inode = page->mapping->host; @@ -1430,10 +1430,10 @@ static int ext3_ordered_writepage(struct page *page, * We give up here if we're reentered, because it might be for a * different filesystem. */ - if (ext3_journal_current_handle()) + if (ext4_journal_current_handle()) goto out_fail; - handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); + handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { ret = PTR_ERR(handle); @@ -1448,7 +1448,7 @@ static int ext3_ordered_writepage(struct page *page, walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE, NULL, bget_one); - ret = block_write_full_page(page, ext3_get_block, wbc); + ret = block_write_full_page(page, ext4_get_block, wbc); /* * The page can become unlocked at any point now, and @@ -1470,7 +1470,7 @@ static int ext3_ordered_writepage(struct page *page, } walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE, NULL, bput_one); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; @@ -1481,7 +1481,7 @@ out_fail: return ret; } -static int ext3_writeback_writepage(struct page *page, +static int ext4_writeback_writepage(struct page *page, struct writeback_control *wbc) { struct inode *inode = page->mapping->host; @@ -1489,21 +1489,21 @@ static int ext3_writeback_writepage(struct page *page, int ret = 0; int err; - if (ext3_journal_current_handle()) + if (ext4_journal_current_handle()) goto out_fail; - handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); + handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { ret = PTR_ERR(handle); goto out_fail; } - if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) - ret = nobh_writepage(page, ext3_get_block, wbc); + if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) + ret = nobh_writepage(page, ext4_get_block, wbc); else - ret = block_write_full_page(page, ext3_get_block, wbc); + ret = block_write_full_page(page, ext4_get_block, wbc); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; @@ -1514,7 +1514,7 @@ out_fail: return ret; } -static int ext3_journalled_writepage(struct page *page, +static int ext4_journalled_writepage(struct page *page, struct writeback_control *wbc) { struct inode *inode = page->mapping->host; @@ -1522,10 +1522,10 @@ static int ext3_journalled_writepage(struct page *page, int ret = 0; int err; - if (ext3_journal_current_handle()) + if (ext4_journal_current_handle()) goto no_write; - handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); + handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { ret = PTR_ERR(handle); goto no_write; @@ -1538,9 +1538,9 @@ static int ext3_journalled_writepage(struct page *page, */ ClearPageChecked(page); ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE, - ext3_get_block); + ext4_get_block); if (ret != 0) { - ext3_journal_stop(handle); + ext4_journal_stop(handle); goto out_unlock; } ret = walk_page_buffers(handle, page_buffers(page), 0, @@ -1550,7 +1550,7 @@ static int ext3_journalled_writepage(struct page *page, PAGE_CACHE_SIZE, NULL, commit_write_fn); if (ret == 0) ret = err; - EXT3_I(inode)->i_state |= EXT3_STATE_JDATA; + EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; unlock_page(page); } else { /* @@ -1558,9 +1558,9 @@ static int ext3_journalled_writepage(struct page *page, * really know unless we go poke around in the buffer_heads. * But block_write_full_page will do the right thing. */ - ret = block_write_full_page(page, ext3_get_block, wbc); + ret = block_write_full_page(page, ext4_get_block, wbc); } - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; out: @@ -1573,21 +1573,21 @@ out_unlock: goto out; } -static int ext3_readpage(struct file *file, struct page *page) +static int ext4_readpage(struct file *file, struct page *page) { - return mpage_readpage(page, ext3_get_block); + return mpage_readpage(page, ext4_get_block); } static int -ext3_readpages(struct file *file, struct address_space *mapping, +ext4_readpages(struct file *file, struct address_space *mapping, struct list_head *pages, unsigned nr_pages) { - return mpage_readpages(mapping, pages, nr_pages, ext3_get_block); + return mpage_readpages(mapping, pages, nr_pages, ext4_get_block); } -static void ext3_invalidatepage(struct page *page, unsigned long offset) +static void ext4_invalidatepage(struct page *page, unsigned long offset) { - journal_t *journal = EXT3_JOURNAL(page->mapping->host); + journal_t *journal = EXT4_JOURNAL(page->mapping->host); /* * If it's a full truncate we just forget about the pending dirtying @@ -1598,9 +1598,9 @@ static void ext3_invalidatepage(struct page *page, unsigned long offset) journal_invalidatepage(journal, page, offset); } -static int ext3_releasepage(struct page *page, gfp_t wait) +static int ext4_releasepage(struct page *page, gfp_t wait) { - journal_t *journal = EXT3_JOURNAL(page->mapping->host); + journal_t *journal = EXT4_JOURNAL(page->mapping->host); WARN_ON(PageChecked(page)); if (!page_has_buffers(page)) @@ -1616,13 +1616,13 @@ static int ext3_releasepage(struct page *page, gfp_t wait) * If the O_DIRECT write is intantiating holes inside i_size and the machine * crashes then stale disk data _may_ be exposed inside the file. */ -static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, +static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t offset, unsigned long nr_segs) { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_inode_info *ei = EXT4_I(inode); handle_t *handle = NULL; ssize_t ret; int orphan = 0; @@ -1631,13 +1631,13 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, if (rw == WRITE) { loff_t final_size = offset + count; - handle = ext3_journal_start(inode, DIO_CREDITS); + handle = ext4_journal_start(inode, DIO_CREDITS); if (IS_ERR(handle)) { ret = PTR_ERR(handle); goto out; } if (final_size > inode->i_size) { - ret = ext3_orphan_add(handle, inode); + ret = ext4_orphan_add(handle, inode); if (ret) goto out_stop; orphan = 1; @@ -1647,10 +1647,10 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, - ext3_get_block, NULL); + ext4_get_block, NULL); /* - * Reacquire the handle: ext3_get_block() can restart the transaction + * Reacquire the handle: ext4_get_block() can restart the transaction */ handle = journal_current_handle(); @@ -1659,7 +1659,7 @@ out_stop: int err; if (orphan && inode->i_nlink) - ext3_orphan_del(handle, inode); + ext4_orphan_del(handle, inode); if (orphan && ret > 0) { loff_t end = offset + ret; if (end > inode->i_size) { @@ -1669,13 +1669,13 @@ out_stop: * We're going to return a positive `ret' * here due to non-zero-length I/O, so there's * no way of reporting error returns from - * ext3_mark_inode_dirty() to userspace. So + * ext4_mark_inode_dirty() to userspace. So * ignore it. */ - ext3_mark_inode_dirty(handle, inode); + ext4_mark_inode_dirty(handle, inode); } } - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (ret == 0) ret = err; } @@ -1684,7 +1684,7 @@ out: } /* - * Pages can be marked dirty completely asynchronously from ext3's journalling + * Pages can be marked dirty completely asynchronously from ext4's journalling * activity. By filemap_sync_pte(), try_to_unmap_one(), etc. We cannot do * much here because ->set_page_dirty is called under VFS locks. The page is * not necessarily locked. @@ -1696,73 +1696,73 @@ out: * So what we do is to mark the page "pending dirty" and next time writepage * is called, propagate that into the buffers appropriately. */ -static int ext3_journalled_set_page_dirty(struct page *page) +static int ext4_journalled_set_page_dirty(struct page *page) { SetPageChecked(page); return __set_page_dirty_nobuffers(page); } -static const struct address_space_operations ext3_ordered_aops = { - .readpage = ext3_readpage, - .readpages = ext3_readpages, - .writepage = ext3_ordered_writepage, +static const struct address_space_operations ext4_ordered_aops = { + .readpage = ext4_readpage, + .readpages = ext4_readpages, + .writepage = ext4_ordered_writepage, .sync_page = block_sync_page, - .prepare_write = ext3_prepare_write, - .commit_write = ext3_ordered_commit_write, - .bmap = ext3_bmap, - .invalidatepage = ext3_invalidatepage, - .releasepage = ext3_releasepage, - .direct_IO = ext3_direct_IO, + .prepare_write = ext4_prepare_write, + .commit_write = ext4_ordered_commit_write, + .bmap = ext4_bmap, + .invalidatepage = ext4_invalidatepage, + .releasepage = ext4_releasepage, + .direct_IO = ext4_direct_IO, .migratepage = buffer_migrate_page, }; -static const struct address_space_operations ext3_writeback_aops = { - .readpage = ext3_readpage, - .readpages = ext3_readpages, - .writepage = ext3_writeback_writepage, +static const struct address_space_operations ext4_writeback_aops = { + .readpage = ext4_readpage, + .readpages = ext4_readpages, + .writepage = ext4_writeback_writepage, .sync_page = block_sync_page, - .prepare_write = ext3_prepare_write, - .commit_write = ext3_writeback_commit_write, - .bmap = ext3_bmap, - .invalidatepage = ext3_invalidatepage, - .releasepage = ext3_releasepage, - .direct_IO = ext3_direct_IO, + .prepare_write = ext4_prepare_write, + .commit_write = ext4_writeback_commit_write, + .bmap = ext4_bmap, + .invalidatepage = ext4_invalidatepage, + .releasepage = ext4_releasepage, + .direct_IO = ext4_direct_IO, .migratepage = buffer_migrate_page, }; -static const struct address_space_operations ext3_journalled_aops = { - .readpage = ext3_readpage, - .readpages = ext3_readpages, - .writepage = ext3_journalled_writepage, +static const struct address_space_operations ext4_journalled_aops = { + .readpage = ext4_readpage, + .readpages = ext4_readpages, + .writepage = ext4_journalled_writepage, .sync_page = block_sync_page, - .prepare_write = ext3_prepare_write, - .commit_write = ext3_journalled_commit_write, - .set_page_dirty = ext3_journalled_set_page_dirty, - .bmap = ext3_bmap, - .invalidatepage = ext3_invalidatepage, - .releasepage = ext3_releasepage, + .prepare_write = ext4_prepare_write, + .commit_write = ext4_journalled_commit_write, + .set_page_dirty = ext4_journalled_set_page_dirty, + .bmap = ext4_bmap, + .invalidatepage = ext4_invalidatepage, + .releasepage = ext4_releasepage, }; -void ext3_set_aops(struct inode *inode) +void ext4_set_aops(struct inode *inode) { - if (ext3_should_order_data(inode)) - inode->i_mapping->a_ops = &ext3_ordered_aops; - else if (ext3_should_writeback_data(inode)) - inode->i_mapping->a_ops = &ext3_writeback_aops; + if (ext4_should_order_data(inode)) + inode->i_mapping->a_ops = &ext4_ordered_aops; + else if (ext4_should_writeback_data(inode)) + inode->i_mapping->a_ops = &ext4_writeback_aops; else - inode->i_mapping->a_ops = &ext3_journalled_aops; + inode->i_mapping->a_ops = &ext4_journalled_aops; } /* - * ext3_block_truncate_page() zeroes out a mapping from file offset `from' + * ext4_block_truncate_page() zeroes out a mapping from file offset `from' * up to the end of the block which corresponds to `from'. * This required during truncate. We need to physically zero the tail end * of that block so it doesn't yield old data if the file is later grown. */ -static int ext3_block_truncate_page(handle_t *handle, struct page *page, +static int ext4_block_truncate_page(handle_t *handle, struct page *page, struct address_space *mapping, loff_t from) { - ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT; + ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT; unsigned offset = from & (PAGE_CACHE_SIZE-1); unsigned blocksize, iblock, length, pos; struct inode *inode = mapping->host; @@ -1779,7 +1779,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page, * read-in the page - otherwise we create buffers to do the IO. */ if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) && - ext3_should_writeback_data(inode) && PageUptodate(page)) { + ext4_should_writeback_data(inode) && PageUptodate(page)) { kaddr = kmap_atomic(page, KM_USER0); memset(kaddr + offset, 0, length); flush_dcache_page(page); @@ -1808,7 +1808,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page, if (!buffer_mapped(bh)) { BUFFER_TRACE(bh, "unmapped"); - ext3_get_block(inode, iblock, bh, 0); + ext4_get_block(inode, iblock, bh, 0); /* unmapped? It's a hole - nothing to do */ if (!buffer_mapped(bh)) { BUFFER_TRACE(bh, "still unmapped"); @@ -1829,9 +1829,9 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page, goto unlock; } - if (ext3_should_journal_data(inode)) { + if (ext4_should_journal_data(inode)) { BUFFER_TRACE(bh, "get write access"); - err = ext3_journal_get_write_access(handle, bh); + err = ext4_journal_get_write_access(handle, bh); if (err) goto unlock; } @@ -1844,11 +1844,11 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page, BUFFER_TRACE(bh, "zeroed end of block"); err = 0; - if (ext3_should_journal_data(inode)) { - err = ext3_journal_dirty_metadata(handle, bh); + if (ext4_should_journal_data(inode)) { + err = ext4_journal_dirty_metadata(handle, bh); } else { - if (ext3_should_order_data(inode)) - err = ext3_journal_dirty_data(handle, bh); + if (ext4_should_order_data(inode)) + err = ext4_journal_dirty_data(handle, bh); mark_buffer_dirty(bh); } @@ -1872,14 +1872,14 @@ static inline int all_zeroes(__le32 *p, __le32 *q) } /** - * ext3_find_shared - find the indirect blocks for partial truncation. + * ext4_find_shared - find the indirect blocks for partial truncation. * @inode: inode in question * @depth: depth of the affected branch - * @offsets: offsets of pointers in that branch (see ext3_block_to_path) + * @offsets: offsets of pointers in that branch (see ext4_block_to_path) * @chain: place to store the pointers to partial indirect blocks * @top: place to the (detached) top of branch * - * This is a helper function used by ext3_truncate(). + * This is a helper function used by ext4_truncate(). * * When we do truncate() we may have to clean the ends of several * indirect blocks but leave the blocks themselves alive. Block is @@ -1887,7 +1887,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q) * from it (and it is on the path to the first completely truncated * data block, indeed). We have to free the top of that path along * with everything to the right of the path. Since no allocation - * past the truncation point is possible until ext3_truncate() + * past the truncation point is possible until ext4_truncate() * finishes, we may safely do the latter, but top of branch may * require special attention - pageout below the truncation point * might try to populate it. @@ -1906,7 +1906,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q) * c) free the subtrees growing from the inode past the @chain[0]. * (no partially truncated stuff there). */ -static Indirect *ext3_find_shared(struct inode *inode, int depth, +static Indirect *ext4_find_shared(struct inode *inode, int depth, int offsets[4], Indirect chain[4], __le32 *top) { Indirect *partial, *p; @@ -1916,7 +1916,7 @@ static Indirect *ext3_find_shared(struct inode *inode, int depth, /* Make k index the deepest non-null offest + 1 */ for (k = depth; k > 1 && !offsets[k-1]; k--) ; - partial = ext3_get_branch(inode, k, offsets, chain, &err); + partial = ext4_get_branch(inode, k, offsets, chain, &err); /* Writer: pointers */ if (!partial) partial = chain + k-1; @@ -1939,7 +1939,7 @@ static Indirect *ext3_find_shared(struct inode *inode, int depth, p->p--; } else { *top = *p->p; - /* Nope, don't do this in ext3. Must leave the tree intact */ + /* Nope, don't do this in ext4. Must leave the tree intact */ #if 0 *p->p = 0; #endif @@ -1962,21 +1962,21 @@ no_top: * We release `count' blocks on disk, but (last - first) may be greater * than `count' because there can be holes in there. */ -static void ext3_clear_blocks(handle_t *handle, struct inode *inode, - struct buffer_head *bh, ext3_fsblk_t block_to_free, +static void ext4_clear_blocks(handle_t *handle, struct inode *inode, + struct buffer_head *bh, ext4_fsblk_t block_to_free, unsigned long count, __le32 *first, __le32 *last) { __le32 *p; if (try_to_extend_transaction(handle, inode)) { if (bh) { - BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); - ext3_journal_dirty_metadata(handle, bh); + BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata"); + ext4_journal_dirty_metadata(handle, bh); } - ext3_mark_inode_dirty(handle, inode); - ext3_journal_test_restart(handle, inode); + ext4_mark_inode_dirty(handle, inode); + ext4_journal_test_restart(handle, inode); if (bh) { BUFFER_TRACE(bh, "retaking write access"); - ext3_journal_get_write_access(handle, bh); + ext4_journal_get_write_access(handle, bh); } } @@ -1995,15 +1995,15 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode, *p = 0; bh = sb_find_get_block(inode->i_sb, nr); - ext3_forget(handle, 0, inode, bh, nr); + ext4_forget(handle, 0, inode, bh, nr); } } - ext3_free_blocks(handle, inode, block_to_free, count); + ext4_free_blocks(handle, inode, block_to_free, count); } /** - * ext3_free_data - free a list of data blocks + * ext4_free_data - free a list of data blocks * @handle: handle for this transaction * @inode: inode we are dealing with * @this_bh: indirect buffer_head which contains *@first and *@last @@ -2021,23 +2021,23 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode, * @this_bh will be %NULL if @first and @last point into the inode's direct * block pointers. */ -static void ext3_free_data(handle_t *handle, struct inode *inode, +static void ext4_free_data(handle_t *handle, struct inode *inode, struct buffer_head *this_bh, __le32 *first, __le32 *last) { - ext3_fsblk_t block_to_free = 0; /* Starting block # of a run */ + ext4_fsblk_t block_to_free = 0; /* Starting block # of a run */ unsigned long count = 0; /* Number of blocks in the run */ __le32 *block_to_free_p = NULL; /* Pointer into inode/ind corresponding to block_to_free */ - ext3_fsblk_t nr; /* Current block # */ + ext4_fsblk_t nr; /* Current block # */ __le32 *p; /* Pointer into inode/ind for current block */ int err; if (this_bh) { /* For indirect block */ BUFFER_TRACE(this_bh, "get_write_access"); - err = ext3_journal_get_write_access(handle, this_bh); + err = ext4_journal_get_write_access(handle, this_bh); /* Important: if we can't update the indirect pointers * to the blocks, we can't free them. */ if (err) @@ -2055,7 +2055,7 @@ static void ext3_free_data(handle_t *handle, struct inode *inode, } else if (nr == block_to_free + count) { count++; } else { - ext3_clear_blocks(handle, inode, this_bh, + ext4_clear_blocks(handle, inode, this_bh, block_to_free, count, block_to_free_p, p); block_to_free = nr; @@ -2066,17 +2066,17 @@ static void ext3_free_data(handle_t *handle, struct inode *inode, } if (count > 0) - ext3_clear_blocks(handle, inode, this_bh, block_to_free, + ext4_clear_blocks(handle, inode, this_bh, block_to_free, count, block_to_free_p, p); if (this_bh) { - BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata"); - ext3_journal_dirty_metadata(handle, this_bh); + BUFFER_TRACE(this_bh, "call ext4_journal_dirty_metadata"); + ext4_journal_dirty_metadata(handle, this_bh); } } /** - * ext3_free_branches - free an array of branches + * ext4_free_branches - free an array of branches * @handle: JBD handle for this transaction * @inode: inode we are dealing with * @parent_bh: the buffer_head which contains *@first and *@last @@ -2088,11 +2088,11 @@ static void ext3_free_data(handle_t *handle, struct inode *inode, * stored as little-endian 32-bit) and updating @inode->i_blocks * appropriately. */ -static void ext3_free_branches(handle_t *handle, struct inode *inode, +static void ext4_free_branches(handle_t *handle, struct inode *inode, struct buffer_head *parent_bh, __le32 *first, __le32 *last, int depth) { - ext3_fsblk_t nr; + ext4_fsblk_t nr; __le32 *p; if (is_handle_aborted(handle)) @@ -2100,7 +2100,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, if (depth--) { struct buffer_head *bh; - int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb); + int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb); p = last; while (--p >= first) { nr = le32_to_cpu(*p); @@ -2115,7 +2115,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, * (should be rare). */ if (!bh) { - ext3_error(inode->i_sb, "ext3_free_branches", + ext4_error(inode->i_sb, "ext4_free_branches", "Read failure, inode=%lu, block="E3FSBLK, inode->i_ino, nr); continue; @@ -2123,7 +2123,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, /* This zaps the entire block. Bottom up. */ BUFFER_TRACE(bh, "free child branches"); - ext3_free_branches(handle, inode, bh, + ext4_free_branches(handle, inode, bh, (__le32*)bh->b_data, (__le32*)bh->b_data + addr_per_block, depth); @@ -2138,7 +2138,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, * transaction. But if it's part of the committing * transaction then journal_forget() will simply * brelse() it. That means that if the underlying - * block is reallocated in ext3_get_block(), + * block is reallocated in ext4_get_block(), * unmap_underlying_metadata() will find this block * and will try to get rid of it. damn, damn. * @@ -2147,7 +2147,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, * revoke records must be emitted *before* clearing * this block's bit in the bitmaps. */ - ext3_forget(handle, 1, inode, bh, bh->b_blocknr); + ext4_forget(handle, 1, inode, bh, bh->b_blocknr); /* * Everything below this this pointer has been @@ -2168,11 +2168,11 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, if (is_handle_aborted(handle)) return; if (try_to_extend_transaction(handle, inode)) { - ext3_mark_inode_dirty(handle, inode); - ext3_journal_test_restart(handle, inode); + ext4_mark_inode_dirty(handle, inode); + ext4_journal_test_restart(handle, inode); } - ext3_free_blocks(handle, inode, nr, 1); + ext4_free_blocks(handle, inode, nr, 1); if (parent_bh) { /* @@ -2180,12 +2180,12 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, * pointed to by an indirect block: journal it */ BUFFER_TRACE(parent_bh, "get_write_access"); - if (!ext3_journal_get_write_access(handle, + if (!ext4_journal_get_write_access(handle, parent_bh)){ *p = 0; BUFFER_TRACE(parent_bh, - "call ext3_journal_dirty_metadata"); - ext3_journal_dirty_metadata(handle, + "call ext4_journal_dirty_metadata"); + ext4_journal_dirty_metadata(handle, parent_bh); } } @@ -2193,15 +2193,15 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, } else { /* We have reached the bottom of the tree. */ BUFFER_TRACE(parent_bh, "free data blocks"); - ext3_free_data(handle, inode, parent_bh, first, last); + ext4_free_data(handle, inode, parent_bh, first, last); } } /* - * ext3_truncate() + * ext4_truncate() * - * We block out ext3_get_block() block instantiations across the entire - * transaction, and VFS/VM ensures that ext3_truncate() cannot run + * We block out ext4_get_block() block instantiations across the entire + * transaction, and VFS/VM ensures that ext4_truncate() cannot run * simultaneously on behalf of the same inode. * * As we work through the truncate and commmit bits of it to the journal there @@ -2218,19 +2218,19 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode, * truncate against the orphan inode list. * * The committed inode has the new, desired i_size (which is the same as - * i_disksize in this case). After a crash, ext3_orphan_cleanup() will see + * i_disksize in this case). After a crash, ext4_orphan_cleanup() will see * that this inode's truncate did not complete and it will again call - * ext3_truncate() to have another go. So there will be instantiated blocks - * to the right of the truncation point in a crashed ext3 filesystem. But + * ext4_truncate() to have another go. So there will be instantiated blocks + * to the right of the truncation point in a crashed ext4 filesystem. But * that's fine - as long as they are linked from the inode, the post-crash - * ext3_truncate() run will find them and release them. + * ext4_truncate() run will find them and release them. */ -void ext3_truncate(struct inode *inode) +void ext4_truncate(struct inode *inode) { handle_t *handle; - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_inode_info *ei = EXT4_I(inode); __le32 *i_data = ei->i_data; - int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb); + int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb); struct address_space *mapping = inode->i_mapping; int offsets[4]; Indirect chain[4]; @@ -2244,7 +2244,7 @@ void ext3_truncate(struct inode *inode) if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) return; - if (ext3_inode_is_fast_symlink(inode)) + if (ext4_inode_is_fast_symlink(inode)) return; if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) return; @@ -2275,12 +2275,12 @@ void ext3_truncate(struct inode *inode) } last_block = (inode->i_size + blocksize-1) - >> EXT3_BLOCK_SIZE_BITS(inode->i_sb); + >> EXT4_BLOCK_SIZE_BITS(inode->i_sb); if (page) - ext3_block_truncate_page(handle, page, mapping, inode->i_size); + ext4_block_truncate_page(handle, page, mapping, inode->i_size); - n = ext3_block_to_path(inode, last_block, offsets, NULL); + n = ext4_block_to_path(inode, last_block, offsets, NULL); if (n == 0) goto out_stop; /* error */ @@ -2293,7 +2293,7 @@ void ext3_truncate(struct inode *inode) * Implication: the file must always be in a sane, consistent * truncatable state while each transaction commits. */ - if (ext3_orphan_add(handle, inode)) + if (ext4_orphan_add(handle, inode)) goto out_stop; /* @@ -2301,28 +2301,28 @@ void ext3_truncate(struct inode *inode) * occurs before the truncate completes, so it is now safe to propagate * the new, shorter inode size (held for now in i_size) into the * on-disk inode. We do this via i_disksize, which is the value which - * ext3 *really* writes onto the disk inode. + * ext4 *really* writes onto the disk inode. */ ei->i_disksize = inode->i_size; /* - * From here we block out all ext3_get_block() callers who want to + * From here we block out all ext4_get_block() callers who want to * modify the block allocation tree. */ mutex_lock(&ei->truncate_mutex); if (n == 1) { /* direct blocks */ - ext3_free_data(handle, inode, NULL, i_data+offsets[0], - i_data + EXT3_NDIR_BLOCKS); + ext4_free_data(handle, inode, NULL, i_data+offsets[0], + i_data + EXT4_NDIR_BLOCKS); goto do_indirects; } - partial = ext3_find_shared(inode, n, offsets, chain, &nr); + partial = ext4_find_shared(inode, n, offsets, chain, &nr); /* Kill the top of shared branch (not detached) */ if (nr) { if (partial == chain) { /* Shared branch grows from the inode */ - ext3_free_branches(handle, inode, NULL, + ext4_free_branches(handle, inode, NULL, &nr, &nr+1, (chain+n-1) - partial); *partial->p = 0; /* @@ -2332,14 +2332,14 @@ void ext3_truncate(struct inode *inode) } else { /* Shared branch grows from an indirect block */ BUFFER_TRACE(partial->bh, "get_write_access"); - ext3_free_branches(handle, inode, partial->bh, + ext4_free_branches(handle, inode, partial->bh, partial->p, partial->p+1, (chain+n-1) - partial); } } /* Clear the ends of indirect blocks on the shared branch */ while (partial > chain) { - ext3_free_branches(handle, inode, partial->bh, partial->p + 1, + ext4_free_branches(handle, inode, partial->bh, partial->p + 1, (__le32*)partial->bh->b_data+addr_per_block, (chain+n-1) - partial); BUFFER_TRACE(partial->bh, "call brelse"); @@ -2350,32 +2350,32 @@ do_indirects: /* Kill the remaining (whole) subtrees */ switch (offsets[0]) { default: - nr = i_data[EXT3_IND_BLOCK]; + nr = i_data[EXT4_IND_BLOCK]; if (nr) { - ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 1); - i_data[EXT3_IND_BLOCK] = 0; + ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1); + i_data[EXT4_IND_BLOCK] = 0; } - case EXT3_IND_BLOCK: - nr = i_data[EXT3_DIND_BLOCK]; + case EXT4_IND_BLOCK: + nr = i_data[EXT4_DIND_BLOCK]; if (nr) { - ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 2); - i_data[EXT3_DIND_BLOCK] = 0; + ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2); + i_data[EXT4_DIND_BLOCK] = 0; } - case EXT3_DIND_BLOCK: - nr = i_data[EXT3_TIND_BLOCK]; + case EXT4_DIND_BLOCK: + nr = i_data[EXT4_TIND_BLOCK]; if (nr) { - ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 3); - i_data[EXT3_TIND_BLOCK] = 0; + ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3); + i_data[EXT4_TIND_BLOCK] = 0; } - case EXT3_TIND_BLOCK: + case EXT4_TIND_BLOCK: ; } - ext3_discard_reservation(inode); + ext4_discard_reservation(inode); mutex_unlock(&ei->truncate_mutex); inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; - ext3_mark_inode_dirty(handle, inode); + ext4_mark_inode_dirty(handle, inode); /* * In a multi-transaction truncate, we only make the final transaction @@ -2388,25 +2388,25 @@ out_stop: * If this was a simple ftruncate(), and the file will remain alive * then we need to clear up the orphan record which we created above. * However, if this was a real unlink then we were called by - * ext3_delete_inode(), and we allow that function to clean up the + * ext4_delete_inode(), and we allow that function to clean up the * orphan info for us. */ if (inode->i_nlink) - ext3_orphan_del(handle, inode); + ext4_orphan_del(handle, inode); - ext3_journal_stop(handle); + ext4_journal_stop(handle); } -static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb, - unsigned long ino, struct ext3_iloc *iloc) +static ext4_fsblk_t ext4_get_inode_block(struct super_block *sb, + unsigned long ino, struct ext4_iloc *iloc) { unsigned long desc, group_desc, block_group; unsigned long offset; - ext3_fsblk_t block; + ext4_fsblk_t block; struct buffer_head *bh; - struct ext3_group_desc * gdp; + struct ext4_group_desc * gdp; - if (!ext3_valid_inum(sb, ino)) { + if (!ext4_valid_inum(sb, ino)) { /* * This error is already checked for in namei.c unless we are * looking at an NFS filehandle, in which case no error @@ -2415,54 +2415,54 @@ static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb, return 0; } - block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb); - if (block_group >= EXT3_SB(sb)->s_groups_count) { - ext3_error(sb,"ext3_get_inode_block","group >= groups count"); + block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb); + if (block_group >= EXT4_SB(sb)->s_groups_count) { + ext4_error(sb,"ext4_get_inode_block","group >= groups count"); return 0; } smp_rmb(); - group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(sb); - desc = block_group & (EXT3_DESC_PER_BLOCK(sb) - 1); - bh = EXT3_SB(sb)->s_group_desc[group_desc]; + group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb); + desc = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1); + bh = EXT4_SB(sb)->s_group_desc[group_desc]; if (!bh) { - ext3_error (sb, "ext3_get_inode_block", + ext4_error (sb, "ext4_get_inode_block", "Descriptor not loaded"); return 0; } - gdp = (struct ext3_group_desc *)bh->b_data; + gdp = (struct ext4_group_desc *)bh->b_data; /* * Figure out the offset within the block group inode table */ - offset = ((ino - 1) % EXT3_INODES_PER_GROUP(sb)) * - EXT3_INODE_SIZE(sb); + offset = ((ino - 1) % EXT4_INODES_PER_GROUP(sb)) * + EXT4_INODE_SIZE(sb); block = le32_to_cpu(gdp[desc].bg_inode_table) + - (offset >> EXT3_BLOCK_SIZE_BITS(sb)); + (offset >> EXT4_BLOCK_SIZE_BITS(sb)); iloc->block_group = block_group; - iloc->offset = offset & (EXT3_BLOCK_SIZE(sb) - 1); + iloc->offset = offset & (EXT4_BLOCK_SIZE(sb) - 1); return block; } /* - * ext3_get_inode_loc returns with an extra refcount against the inode's + * ext4_get_inode_loc returns with an extra refcount against the inode's * underlying buffer_head on success. If 'in_mem' is true, we have all * data in memory that is needed to recreate the on-disk version of this * inode. */ -static int __ext3_get_inode_loc(struct inode *inode, - struct ext3_iloc *iloc, int in_mem) +static int __ext4_get_inode_loc(struct inode *inode, + struct ext4_iloc *iloc, int in_mem) { - ext3_fsblk_t block; + ext4_fsblk_t block; struct buffer_head *bh; - block = ext3_get_inode_block(inode->i_sb, inode->i_ino, iloc); + block = ext4_get_inode_block(inode->i_sb, inode->i_ino, iloc); if (!block) return -EIO; bh = sb_getblk(inode->i_sb, block); if (!bh) { - ext3_error (inode->i_sb, "ext3_get_inode_loc", + ext4_error (inode->i_sb, "ext4_get_inode_loc", "unable to read inode block - " "inode=%lu, block="E3FSBLK, inode->i_ino, block); @@ -2483,22 +2483,22 @@ static int __ext3_get_inode_loc(struct inode *inode, */ if (in_mem) { struct buffer_head *bitmap_bh; - struct ext3_group_desc *desc; + struct ext4_group_desc *desc; int inodes_per_buffer; int inode_offset, i; int block_group; int start; block_group = (inode->i_ino - 1) / - EXT3_INODES_PER_GROUP(inode->i_sb); + EXT4_INODES_PER_GROUP(inode->i_sb); inodes_per_buffer = bh->b_size / - EXT3_INODE_SIZE(inode->i_sb); + EXT4_INODE_SIZE(inode->i_sb); inode_offset = ((inode->i_ino - 1) % - EXT3_INODES_PER_GROUP(inode->i_sb)); + EXT4_INODES_PER_GROUP(inode->i_sb)); start = inode_offset & ~(inodes_per_buffer - 1); /* Is the inode bitmap in cache? */ - desc = ext3_get_group_desc(inode->i_sb, + desc = ext4_get_group_desc(inode->i_sb, block_group, NULL); if (!desc) goto make_io; @@ -2520,7 +2520,7 @@ static int __ext3_get_inode_loc(struct inode *inode, for (i = start; i < start + inodes_per_buffer; i++) { if (i == inode_offset) continue; - if (ext3_test_bit(i, bitmap_bh->b_data)) + if (ext4_test_bit(i, bitmap_bh->b_data)) break; } brelse(bitmap_bh); @@ -2544,7 +2544,7 @@ make_io: submit_bh(READ_META, bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { - ext3_error(inode->i_sb, "ext3_get_inode_loc", + ext4_error(inode->i_sb, "ext4_get_inode_loc", "unable to read inode block - " "inode=%lu, block="E3FSBLK, inode->i_ino, block); @@ -2557,48 +2557,48 @@ has_buffer: return 0; } -int ext3_get_inode_loc(struct inode *inode, struct ext3_iloc *iloc) +int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc) { /* We have all inode data except xattrs in memory here. */ - return __ext3_get_inode_loc(inode, iloc, - !(EXT3_I(inode)->i_state & EXT3_STATE_XATTR)); + return __ext4_get_inode_loc(inode, iloc, + !(EXT4_I(inode)->i_state & EXT4_STATE_XATTR)); } -void ext3_set_inode_flags(struct inode *inode) +void ext4_set_inode_flags(struct inode *inode) { - unsigned int flags = EXT3_I(inode)->i_flags; + unsigned int flags = EXT4_I(inode)->i_flags; inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); - if (flags & EXT3_SYNC_FL) + if (flags & EXT4_SYNC_FL) inode->i_flags |= S_SYNC; - if (flags & EXT3_APPEND_FL) + if (flags & EXT4_APPEND_FL) inode->i_flags |= S_APPEND; - if (flags & EXT3_IMMUTABLE_FL) + if (flags & EXT4_IMMUTABLE_FL) inode->i_flags |= S_IMMUTABLE; - if (flags & EXT3_NOATIME_FL) + if (flags & EXT4_NOATIME_FL) inode->i_flags |= S_NOATIME; - if (flags & EXT3_DIRSYNC_FL) + if (flags & EXT4_DIRSYNC_FL) inode->i_flags |= S_DIRSYNC; } -void ext3_read_inode(struct inode * inode) +void ext4_read_inode(struct inode * inode) { - struct ext3_iloc iloc; - struct ext3_inode *raw_inode; - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_iloc iloc; + struct ext4_inode *raw_inode; + struct ext4_inode_info *ei = EXT4_I(inode); struct buffer_head *bh; int block; -#ifdef CONFIG_EXT3_FS_POSIX_ACL - ei->i_acl = EXT3_ACL_NOT_CACHED; - ei->i_default_acl = EXT3_ACL_NOT_CACHED; +#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL + ei->i_acl = EXT4_ACL_NOT_CACHED; + ei->i_default_acl = EXT4_ACL_NOT_CACHED; #endif ei->i_block_alloc_info = NULL; - if (__ext3_get_inode_loc(inode, &iloc, 0)) + if (__ext4_get_inode_loc(inode, &iloc, 0)) goto bad_inode; bh = iloc.bh; - raw_inode = ext3_raw_inode(&iloc); + raw_inode = ext4_raw_inode(&iloc); inode->i_mode = le16_to_cpu(raw_inode->i_mode); inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); @@ -2623,7 +2623,7 @@ void ext3_read_inode(struct inode * inode) */ if (inode->i_nlink == 0) { if (inode->i_mode == 0 || - !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ORPHAN_FS)) { + !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) { /* this inode is deleted */ brelse (bh); goto bad_inode; @@ -2635,7 +2635,7 @@ void ext3_read_inode(struct inode * inode) } inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); -#ifdef EXT3_FRAGMENTS +#ifdef EXT4_FRAGMENTS ei->i_faddr = le32_to_cpu(raw_inode->i_faddr); ei->i_frag_no = raw_inode->i_frag; ei->i_frag_size = raw_inode->i_fsize; @@ -2654,51 +2654,51 @@ void ext3_read_inode(struct inode * inode) * NOTE! The in-memory inode i_data array is in little-endian order * even on big-endian machines: we do NOT byteswap the block numbers! */ - for (block = 0; block < EXT3_N_BLOCKS; block++) + for (block = 0; block < EXT4_N_BLOCKS; block++) ei->i_data[block] = raw_inode->i_block[block]; INIT_LIST_HEAD(&ei->i_orphan); - if (inode->i_ino >= EXT3_FIRST_INO(inode->i_sb) + 1 && - EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) { + if (inode->i_ino >= EXT4_FIRST_INO(inode->i_sb) + 1 && + EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) { /* * When mke2fs creates big inodes it does not zero out - * the unused bytes above EXT3_GOOD_OLD_INODE_SIZE, + * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE, * so ignore those first few inodes. */ ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize); - if (EXT3_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > - EXT3_INODE_SIZE(inode->i_sb)) + if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > + EXT4_INODE_SIZE(inode->i_sb)) goto bad_inode; if (ei->i_extra_isize == 0) { /* The extra space is currently unused. Use it. */ - ei->i_extra_isize = sizeof(struct ext3_inode) - - EXT3_GOOD_OLD_INODE_SIZE; + ei->i_extra_isize = sizeof(struct ext4_inode) - + EXT4_GOOD_OLD_INODE_SIZE; } else { __le32 *magic = (void *)raw_inode + - EXT3_GOOD_OLD_INODE_SIZE + + EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize; - if (*magic == cpu_to_le32(EXT3_XATTR_MAGIC)) - ei->i_state |= EXT3_STATE_XATTR; + if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) + ei->i_state |= EXT4_STATE_XATTR; } } else ei->i_extra_isize = 0; if (S_ISREG(inode->i_mode)) { - inode->i_op = &ext3_file_inode_operations; - inode->i_fop = &ext3_file_operations; - ext3_set_aops(inode); + inode->i_op = &ext4_file_inode_operations; + inode->i_fop = &ext4_file_operations; + ext4_set_aops(inode); } else if (S_ISDIR(inode->i_mode)) { - inode->i_op = &ext3_dir_inode_operations; - inode->i_fop = &ext3_dir_operations; + inode->i_op = &ext4_dir_inode_operations; + inode->i_fop = &ext4_dir_operations; } else if (S_ISLNK(inode->i_mode)) { - if (ext3_inode_is_fast_symlink(inode)) - inode->i_op = &ext3_fast_symlink_inode_operations; + if (ext4_inode_is_fast_symlink(inode)) + inode->i_op = &ext4_fast_symlink_inode_operations; else { - inode->i_op = &ext3_symlink_inode_operations; - ext3_set_aops(inode); + inode->i_op = &ext4_symlink_inode_operations; + ext4_set_aops(inode); } } else { - inode->i_op = &ext3_special_inode_operations; + inode->i_op = &ext4_special_inode_operations; if (raw_inode->i_block[0]) init_special_inode(inode, inode->i_mode, old_decode_dev(le32_to_cpu(raw_inode->i_block[0]))); @@ -2707,7 +2707,7 @@ void ext3_read_inode(struct inode * inode) new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); } brelse (iloc.bh); - ext3_set_inode_flags(inode); + ext4_set_inode_flags(inode); return; bad_inode: @@ -2722,19 +2722,19 @@ bad_inode: * * The caller must have write access to iloc->bh. */ -static int ext3_do_update_inode(handle_t *handle, +static int ext4_do_update_inode(handle_t *handle, struct inode *inode, - struct ext3_iloc *iloc) + struct ext4_iloc *iloc) { - struct ext3_inode *raw_inode = ext3_raw_inode(iloc); - struct ext3_inode_info *ei = EXT3_I(inode); + struct ext4_inode *raw_inode = ext4_raw_inode(iloc); + struct ext4_inode_info *ei = EXT4_I(inode); struct buffer_head *bh = iloc->bh; int err = 0, rc, block; /* For fields not not tracking in the in-memory inode, * initialise them to zero for new inodes. */ - if (ei->i_state & EXT3_STATE_NEW) - memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size); + if (ei->i_state & EXT4_STATE_NEW) + memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size); raw_inode->i_mode = cpu_to_le16(inode->i_mode); if(!(test_opt(inode->i_sb, NO_UID32))) { @@ -2769,7 +2769,7 @@ static int ext3_do_update_inode(handle_t *handle, raw_inode->i_blocks = cpu_to_le32(inode->i_blocks); raw_inode->i_dtime = cpu_to_le32(ei->i_dtime); raw_inode->i_flags = cpu_to_le32(ei->i_flags); -#ifdef EXT3_FRAGMENTS +#ifdef EXT4_FRAGMENTS raw_inode->i_faddr = cpu_to_le32(ei->i_faddr); raw_inode->i_frag = ei->i_frag_no; raw_inode->i_fsize = ei->i_frag_size; @@ -2782,24 +2782,24 @@ static int ext3_do_update_inode(handle_t *handle, cpu_to_le32(ei->i_disksize >> 32); if (ei->i_disksize > 0x7fffffffULL) { struct super_block *sb = inode->i_sb; - if (!EXT3_HAS_RO_COMPAT_FEATURE(sb, - EXT3_FEATURE_RO_COMPAT_LARGE_FILE) || - EXT3_SB(sb)->s_es->s_rev_level == - cpu_to_le32(EXT3_GOOD_OLD_REV)) { + if (!EXT4_HAS_RO_COMPAT_FEATURE(sb, + EXT4_FEATURE_RO_COMPAT_LARGE_FILE) || + EXT4_SB(sb)->s_es->s_rev_level == + cpu_to_le32(EXT4_GOOD_OLD_REV)) { /* If this is the first large file * created, add a flag to the superblock. */ - err = ext3_journal_get_write_access(handle, - EXT3_SB(sb)->s_sbh); + err = ext4_journal_get_write_access(handle, + EXT4_SB(sb)->s_sbh); if (err) goto out_brelse; - ext3_update_dynamic_rev(sb); - EXT3_SET_RO_COMPAT_FEATURE(sb, - EXT3_FEATURE_RO_COMPAT_LARGE_FILE); + ext4_update_dynamic_rev(sb); + EXT4_SET_RO_COMPAT_FEATURE(sb, + EXT4_FEATURE_RO_COMPAT_LARGE_FILE); sb->s_dirt = 1; handle->h_sync = 1; - err = ext3_journal_dirty_metadata(handle, - EXT3_SB(sb)->s_sbh); + err = ext4_journal_dirty_metadata(handle, + EXT4_SB(sb)->s_sbh); } } } @@ -2815,26 +2815,26 @@ static int ext3_do_update_inode(handle_t *handle, cpu_to_le32(new_encode_dev(inode->i_rdev)); raw_inode->i_block[2] = 0; } - } else for (block = 0; block < EXT3_N_BLOCKS; block++) + } else for (block = 0; block < EXT4_N_BLOCKS; block++) raw_inode->i_block[block] = ei->i_data[block]; if (ei->i_extra_isize) raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize); - BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); - rc = ext3_journal_dirty_metadata(handle, bh); + BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata"); + rc = ext4_journal_dirty_metadata(handle, bh); if (!err) err = rc; - ei->i_state &= ~EXT3_STATE_NEW; + ei->i_state &= ~EXT4_STATE_NEW; out_brelse: brelse (bh); - ext3_std_error(inode->i_sb, err); + ext4_std_error(inode->i_sb, err); return err; } /* - * ext3_write_inode() + * ext4_write_inode() * * We are called from a few places: * @@ -2851,7 +2851,7 @@ out_brelse: * * In all cases it is actually safe for us to return without doing anything, * because the inode has been copied into a raw inode buffer in - * ext3_mark_inode_dirty(). This is a correctness thing for O_SYNC and for + * ext4_mark_inode_dirty(). This is a correctness thing for O_SYNC and for * knfsd. * * Note that we are absolutely dependent upon all inode dirtiers doing the @@ -2868,12 +2868,12 @@ out_brelse: * `stuff()' is running, and the new i_size will be lost. Plus the inode * will no longer be on the superblock's dirty inode list. */ -int ext3_write_inode(struct inode *inode, int wait) +int ext4_write_inode(struct inode *inode, int wait) { if (current->flags & PF_MEMALLOC) return 0; - if (ext3_journal_current_handle()) { + if (ext4_journal_current_handle()) { jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n"); dump_stack(); return -EIO; @@ -2882,11 +2882,11 @@ int ext3_write_inode(struct inode *inode, int wait) if (!wait) return 0; - return ext3_force_commit(inode->i_sb); + return ext4_force_commit(inode->i_sb); } /* - * ext3_setattr() + * ext4_setattr() * * Called from notify_change. * @@ -2902,7 +2902,7 @@ int ext3_write_inode(struct inode *inode, int wait) * * Called with inode->sem down. */ -int ext3_setattr(struct dentry *dentry, struct iattr *attr) +int ext4_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; int error, rc = 0; @@ -2918,15 +2918,15 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr) /* (user+group)*(old+new) structure, inode write (sb, * inode block, ? - but truncate inode update has it) */ - handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+ - EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3); + handle = ext4_journal_start(inode, 2*(EXT4_QUOTA_INIT_BLOCKS(inode->i_sb)+ + EXT4_QUOTA_DEL_BLOCKS(inode->i_sb))+3); if (IS_ERR(handle)) { error = PTR_ERR(handle); goto err_out; } error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0; if (error) { - ext3_journal_stop(handle); + ext4_journal_stop(handle); return error; } /* Update corresponding info in inode so that everything is in @@ -2935,41 +2935,41 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr) inode->i_uid = attr->ia_uid; if (attr->ia_valid & ATTR_GID) inode->i_gid = attr->ia_gid; - error = ext3_mark_inode_dirty(handle, inode); - ext3_journal_stop(handle); + error = ext4_mark_inode_dirty(handle, inode); + ext4_journal_stop(handle); } if (S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) { handle_t *handle; - handle = ext3_journal_start(inode, 3); + handle = ext4_journal_start(inode, 3); if (IS_ERR(handle)) { error = PTR_ERR(handle); goto err_out; } - error = ext3_orphan_add(handle, inode); - EXT3_I(inode)->i_disksize = attr->ia_size; - rc = ext3_mark_inode_dirty(handle, inode); + error = ext4_orphan_add(handle, inode); + EXT4_I(inode)->i_disksize = attr->ia_size; + rc = ext4_mark_inode_dirty(handle, inode); if (!error) error = rc; - ext3_journal_stop(handle); + ext4_journal_stop(handle); } rc = inode_setattr(inode, attr); - /* If inode_setattr's call to ext3_truncate failed to get a + /* If inode_setattr's call to ext4_truncate failed to get a * transaction handle at all, we need to clean up the in-core * orphan list manually. */ if (inode->i_nlink) - ext3_orphan_del(NULL, inode); + ext4_orphan_del(NULL, inode); if (!rc && (ia_valid & ATTR_MODE)) - rc = ext3_acl_chmod(inode); + rc = ext4_acl_chmod(inode); err_out: - ext3_std_error(inode->i_sb, error); + ext4_std_error(inode->i_sb, error); if (!error) error = rc; return error; @@ -2988,9 +2988,9 @@ err_out: * N+5 group descriptor summary blocks * 1 inode block * 1 superblock. - * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quote files + * 2 * EXT4_SINGLEDATA_TRANS_BLOCKS for the quote files * - * 3 * (N + 5) + 2 + 2 * EXT3_SINGLEDATA_TRANS_BLOCKS + * 3 * (N + 5) + 2 + 2 * EXT4_SINGLEDATA_TRANS_BLOCKS * * With ordered or writeback data it's the same, less the N data blocks. * @@ -3003,13 +3003,13 @@ err_out: * block and work out the exact number of indirects which are touched. Pah. */ -static int ext3_writepage_trans_blocks(struct inode *inode) +static int ext4_writepage_trans_blocks(struct inode *inode) { - int bpp = ext3_journal_blocks_per_page(inode); - int indirects = (EXT3_NDIR_BLOCKS % bpp) ? 5 : 3; + int bpp = ext4_journal_blocks_per_page(inode); + int indirects = (EXT4_NDIR_BLOCKS % bpp) ? 5 : 3; int ret; - if (ext3_should_journal_data(inode)) + if (ext4_should_journal_data(inode)) ret = 3 * (bpp + indirects) + 2; else ret = 2 * (bpp + indirects) + 2; @@ -3017,26 +3017,26 @@ static int ext3_writepage_trans_blocks(struct inode *inode) #ifdef CONFIG_QUOTA /* We know that structure was already allocated during DQUOT_INIT so * we will be updating only the data blocks + inodes */ - ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb); + ret += 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb); #endif return ret; } /* - * The caller must have previously called ext3_reserve_inode_write(). + * The caller must have previously called ext4_reserve_inode_write(). * Give this, we know that the caller already has write access to iloc->bh. */ -int ext3_mark_iloc_dirty(handle_t *handle, - struct inode *inode, struct ext3_iloc *iloc) +int ext4_mark_iloc_dirty(handle_t *handle, + struct inode *inode, struct ext4_iloc *iloc) { int err = 0; /* the do_update_inode consumes one bh->b_count */ get_bh(iloc->bh); - /* ext3_do_update_inode() does journal_dirty_metadata */ - err = ext3_do_update_inode(handle, inode, iloc); + /* ext4_do_update_inode() does journal_dirty_metadata */ + err = ext4_do_update_inode(handle, inode, iloc); put_bh(iloc->bh); return err; } @@ -3047,22 +3047,22 @@ int ext3_mark_iloc_dirty(handle_t *handle, */ int -ext3_reserve_inode_write(handle_t *handle, struct inode *inode, - struct ext3_iloc *iloc) +ext4_reserve_inode_write(handle_t *handle, struct inode *inode, + struct ext4_iloc *iloc) { int err = 0; if (handle) { - err = ext3_get_inode_loc(inode, iloc); + err = ext4_get_inode_loc(inode, iloc); if (!err) { BUFFER_TRACE(iloc->bh, "get_write_access"); - err = ext3_journal_get_write_access(handle, iloc->bh); + err = ext4_journal_get_write_access(handle, iloc->bh); if (err) { brelse(iloc->bh); iloc->bh = NULL; } } } - ext3_std_error(inode->i_sb, err); + ext4_std_error(inode->i_sb, err); return err; } @@ -3087,20 +3087,20 @@ ext3_reserve_inode_write(handle_t *handle, struct inode *inode, * to do a write_super() to free up some memory. It has the desired * effect. */ -int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode) +int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode) { - struct ext3_iloc iloc; + struct ext4_iloc iloc; int err; might_sleep(); - err = ext3_reserve_inode_write(handle, inode, &iloc); + err = ext4_reserve_inode_write(handle, inode, &iloc); if (!err) - err = ext3_mark_iloc_dirty(handle, inode, &iloc); + err = ext4_mark_iloc_dirty(handle, inode, &iloc); return err; } /* - * ext3_dirty_inode() is called from __mark_inode_dirty() + * ext4_dirty_inode() is called from __mark_inode_dirty() * * We're really interested in the case where a file is being extended. * i_size has been changed by generic_commit_write() and we thus need @@ -3113,12 +3113,12 @@ int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode) * so would cause a commit on atime updates, which we don't bother doing. * We handle synchronous inodes at the highest possible level. */ -void ext3_dirty_inode(struct inode *inode) +void ext4_dirty_inode(struct inode *inode) { - handle_t *current_handle = ext3_journal_current_handle(); + handle_t *current_handle = ext4_journal_current_handle(); handle_t *handle; - handle = ext3_journal_start(inode, 2); + handle = ext4_journal_start(inode, 2); if (IS_ERR(handle)) goto out; if (current_handle && @@ -3129,9 +3129,9 @@ void ext3_dirty_inode(struct inode *inode) } else { jbd_debug(5, "marking dirty. outer handle=%p\n", current_handle); - ext3_mark_inode_dirty(handle, inode); + ext4_mark_inode_dirty(handle, inode); } - ext3_journal_stop(handle); + ext4_journal_stop(handle); out: return; } @@ -3140,32 +3140,32 @@ out: /* * Bind an inode's backing buffer_head into this transaction, to prevent * it from being flushed to disk early. Unlike - * ext3_reserve_inode_write, this leaves behind no bh reference and + * ext4_reserve_inode_write, this leaves behind no bh reference and * returns no iloc structure, so the caller needs to repeat the iloc * lookup to mark the inode dirty later. */ -static int ext3_pin_inode(handle_t *handle, struct inode *inode) +static int ext4_pin_inode(handle_t *handle, struct inode *inode) { - struct ext3_iloc iloc; + struct ext4_iloc iloc; int err = 0; if (handle) { - err = ext3_get_inode_loc(inode, &iloc); + err = ext4_get_inode_loc(inode, &iloc); if (!err) { BUFFER_TRACE(iloc.bh, "get_write_access"); err = journal_get_write_access(handle, iloc.bh); if (!err) - err = ext3_journal_dirty_metadata(handle, + err = ext4_journal_dirty_metadata(handle, iloc.bh); brelse(iloc.bh); } } - ext3_std_error(inode->i_sb, err); + ext4_std_error(inode->i_sb, err); return err; } #endif -int ext3_change_inode_journal_flag(struct inode *inode, int val) +int ext4_change_inode_journal_flag(struct inode *inode, int val) { journal_t *journal; handle_t *handle; @@ -3181,7 +3181,7 @@ int ext3_change_inode_journal_flag(struct inode *inode, int val) * nobody is changing anything. */ - journal = EXT3_JOURNAL(inode); + journal = EXT4_JOURNAL(inode); if (is_journal_aborted(journal) || IS_RDONLY(inode)) return -EROFS; @@ -3197,23 +3197,23 @@ int ext3_change_inode_journal_flag(struct inode *inode, int val) */ if (val) - EXT3_I(inode)->i_flags |= EXT3_JOURNAL_DATA_FL; + EXT4_I(inode)->i_flags |= EXT4_JOURNAL_DATA_FL; else - EXT3_I(inode)->i_flags &= ~EXT3_JOURNAL_DATA_FL; - ext3_set_aops(inode); + EXT4_I(inode)->i_flags &= ~EXT4_JOURNAL_DATA_FL; + ext4_set_aops(inode); journal_unlock_updates(journal); /* Finally we can mark the inode as dirty. */ - handle = ext3_journal_start(inode, 1); + handle = ext4_journal_start(inode, 1); if (IS_ERR(handle)) return PTR_ERR(handle); - err = ext3_mark_inode_dirty(handle, inode); + err = ext4_mark_inode_dirty(handle, inode); handle->h_sync = 1; - ext3_journal_stop(handle); - ext3_std_error(inode->i_sb, err); + ext4_journal_stop(handle); + ext4_std_error(inode->i_sb, err); return err; } |
