diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ocfs2/Makefile | 3 | ||||
-rw-r--r-- | fs/ocfs2/alloc.c | 184 | ||||
-rw-r--r-- | fs/ocfs2/alloc.h | 42 | ||||
-rw-r--r-- | fs/ocfs2/aops.c | 5 | ||||
-rw-r--r-- | fs/ocfs2/cluster/masklog.c | 1 | ||||
-rw-r--r-- | fs/ocfs2/cluster/masklog.h | 1 | ||||
-rw-r--r-- | fs/ocfs2/dir.c | 11 | ||||
-rw-r--r-- | fs/ocfs2/extent_map.c | 60 | ||||
-rw-r--r-- | fs/ocfs2/extent_map.h | 4 | ||||
-rw-r--r-- | fs/ocfs2/file.c | 9 | ||||
-rw-r--r-- | fs/ocfs2/suballoc.c | 5 | ||||
-rw-r--r-- | fs/ocfs2/suballoc.h | 3 | ||||
-rw-r--r-- | fs/ocfs2/xattr.c | 305 |
13 files changed, 569 insertions, 64 deletions
diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile index f6956de..af639803 100644 --- a/fs/ocfs2/Makefile +++ b/fs/ocfs2/Makefile @@ -34,7 +34,8 @@ ocfs2-objs := \ symlink.o \ sysfile.o \ uptodate.o \ - ver.o + ver.o \ + xattr.o \ ocfs2_stackglue-objs := stackglue.o ocfs2_stack_o2cb-objs := stack_o2cb.o diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index cacfc11..e45421f 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -78,6 +78,7 @@ struct ocfs2_extent_tree { struct ocfs2_extent_tree_operations *eops; struct buffer_head *root_bh; struct ocfs2_extent_list *root_el; + void *private; }; static void ocfs2_dinode_set_last_eb_blk(struct ocfs2_extent_tree *et, @@ -136,9 +137,50 @@ static struct ocfs2_extent_tree_operations ocfs2_dinode_et_ops = { .sanity_check = ocfs2_dinode_sanity_check, }; +static void ocfs2_xattr_value_set_last_eb_blk(struct ocfs2_extent_tree *et, + u64 blkno) +{ + struct ocfs2_xattr_value_root *xv = + (struct ocfs2_xattr_value_root *)et->private; + + xv->xr_last_eb_blk = cpu_to_le64(blkno); +} + +static u64 ocfs2_xattr_value_get_last_eb_blk(struct ocfs2_extent_tree *et) +{ + struct ocfs2_xattr_value_root *xv = + (struct ocfs2_xattr_value_root *) et->private; + + return le64_to_cpu(xv->xr_last_eb_blk); +} + +static void ocfs2_xattr_value_update_clusters(struct inode *inode, + struct ocfs2_extent_tree *et, + u32 clusters) +{ + struct ocfs2_xattr_value_root *xv = + (struct ocfs2_xattr_value_root *)et->private; + + le32_add_cpu(&xv->xr_clusters, clusters); +} + +static int ocfs2_xattr_value_sanity_check(struct inode *inode, + struct ocfs2_extent_tree *et) +{ + return 0; +} + +static struct ocfs2_extent_tree_operations ocfs2_xattr_et_ops = { + .set_last_eb_blk = ocfs2_xattr_value_set_last_eb_blk, + .get_last_eb_blk = ocfs2_xattr_value_get_last_eb_blk, + .update_clusters = ocfs2_xattr_value_update_clusters, + .sanity_check = ocfs2_xattr_value_sanity_check, +}; + static struct ocfs2_extent_tree* ocfs2_new_extent_tree(struct buffer_head *bh, - enum ocfs2_extent_tree_type et_type) + enum ocfs2_extent_tree_type et_type, + void *private) { struct ocfs2_extent_tree *et; @@ -149,12 +191,16 @@ static struct ocfs2_extent_tree* et->type = et_type; get_bh(bh); et->root_bh = bh; + et->private = private; - /* current we only support dinode extent. */ - BUG_ON(et->type != OCFS2_DINODE_EXTENT); if (et_type == OCFS2_DINODE_EXTENT) { et->root_el = &((struct ocfs2_dinode *)bh->b_data)->id2.i_list; et->eops = &ocfs2_dinode_et_ops; + } else if (et_type == OCFS2_XATTR_VALUE_EXTENT) { + struct ocfs2_xattr_value_root *xv = + (struct ocfs2_xattr_value_root *) private; + et->root_el = &xv->xr_list; + et->eops = &ocfs2_xattr_et_ops; } return et; @@ -495,7 +541,8 @@ struct ocfs2_merge_ctxt { int ocfs2_num_free_extents(struct ocfs2_super *osb, struct inode *inode, struct buffer_head *root_bh, - enum ocfs2_extent_tree_type type) + enum ocfs2_extent_tree_type type, + void *private) { int retval; struct ocfs2_extent_list *el = NULL; @@ -517,6 +564,12 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb, if (fe->i_last_eb_blk) last_eb_blk = le64_to_cpu(fe->i_last_eb_blk); el = &fe->id2.i_list; + } else if (type == OCFS2_XATTR_VALUE_EXTENT) { + struct ocfs2_xattr_value_root *xv = + (struct ocfs2_xattr_value_root *) private; + + last_eb_blk = le64_to_cpu(xv->xr_last_eb_blk); + el = &xv->xr_list; } if (last_eb_blk) { @@ -4209,33 +4262,25 @@ out: * * The caller needs to update fe->i_clusters */ -int ocfs2_insert_extent(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - struct buffer_head *root_bh, - u32 cpos, - u64 start_blk, - u32 new_clusters, - u8 flags, - struct ocfs2_alloc_context *meta_ac, - enum ocfs2_extent_tree_type et_type) +static int ocfs2_insert_extent(struct ocfs2_super *osb, + handle_t *handle, + struct inode *inode, + struct buffer_head *root_bh, + u32 cpos, + u64 start_blk, + u32 new_clusters, + u8 flags, + struct ocfs2_alloc_context *meta_ac, + struct ocfs2_extent_tree *et) { int status; int uninitialized_var(free_records); struct buffer_head *last_eb_bh = NULL; struct ocfs2_insert_type insert = {0, }; struct ocfs2_extent_rec rec; - struct ocfs2_extent_tree *et = NULL; BUG_ON(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL); - et = ocfs2_new_extent_tree(root_bh, et_type); - if (!et) { - status = -ENOMEM; - mlog_errno(status); - goto bail; - } - mlog(0, "add %u clusters at position %u to inode %llu\n", new_clusters, cpos, (unsigned long long)OCFS2_I(inode)->ip_blkno); @@ -4287,9 +4332,68 @@ bail: if (last_eb_bh) brelse(last_eb_bh); + mlog_exit(status); + return status; +} + +int ocfs2_dinode_insert_extent(struct ocfs2_super *osb, + handle_t *handle, + struct inode *inode, + struct buffer_head *root_bh, + u32 cpos, + u64 start_blk, + u32 new_clusters, + u8 flags, + struct ocfs2_alloc_context *meta_ac) +{ + int status; + struct ocfs2_extent_tree *et = NULL; + + et = ocfs2_new_extent_tree(root_bh, OCFS2_DINODE_EXTENT, NULL); + if (!et) { + status = -ENOMEM; + mlog_errno(status); + goto bail; + } + + status = ocfs2_insert_extent(osb, handle, inode, root_bh, + cpos, start_blk, new_clusters, + flags, meta_ac, et); + if (et) ocfs2_free_extent_tree(et); - mlog_exit(status); +bail: + return status; +} + +int ocfs2_xattr_value_insert_extent(struct ocfs2_super *osb, + handle_t *handle, + struct inode *inode, + struct buffer_head *root_bh, + u32 cpos, + u64 start_blk, + u32 new_clusters, + u8 flags, + struct ocfs2_alloc_context *meta_ac, + void *private) +{ + int status; + struct ocfs2_extent_tree *et = NULL; + + et = ocfs2_new_extent_tree(root_bh, OCFS2_XATTR_VALUE_EXTENT, private); + if (!et) { + status = -ENOMEM; + mlog_errno(status); + goto bail; + } + + status = ocfs2_insert_extent(osb, handle, inode, root_bh, + cpos, start_blk, new_clusters, + flags, meta_ac, et); + + if (et) + ocfs2_free_extent_tree(et); +bail: return status; } @@ -4311,7 +4415,8 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb, struct ocfs2_alloc_context *data_ac, struct ocfs2_alloc_context *meta_ac, enum ocfs2_alloc_restarted *reason_ret, - enum ocfs2_extent_tree_type type) + enum ocfs2_extent_tree_type type, + void *private) { int status = 0; int free_extents; @@ -4325,7 +4430,8 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb, if (mark_unwritten) flags = OCFS2_EXT_UNWRITTEN; - free_extents = ocfs2_num_free_extents(osb, inode, root_bh, type); + free_extents = ocfs2_num_free_extents(osb, inode, root_bh, type, + private); if (free_extents < 0) { status = free_extents; mlog_errno(status); @@ -4372,9 +4478,16 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb, block = ocfs2_clusters_to_blocks(osb->sb, bit_off); mlog(0, "Allocating %u clusters at block %u for inode %llu\n", num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno); - status = ocfs2_insert_extent(osb, handle, inode, root_bh, - *logical_offset, block, num_bits, - flags, meta_ac, type); + if (type == OCFS2_DINODE_EXTENT) + status = ocfs2_dinode_insert_extent(osb, handle, inode, root_bh, + *logical_offset, block, + num_bits, flags, meta_ac); + else + status = ocfs2_xattr_value_insert_extent(osb, handle, + inode, root_bh, + *logical_offset, + block, num_bits, flags, + meta_ac, private); if (status < 0) { mlog_errno(status); goto leave; @@ -4655,7 +4768,8 @@ int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *root_bh, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, - enum ocfs2_extent_tree_type et_type) + enum ocfs2_extent_tree_type et_type, + void *private) { int ret, index; u64 start_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys); @@ -4676,7 +4790,7 @@ int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *root_bh, goto out; } - et = ocfs2_new_extent_tree(root_bh, et_type); + et = ocfs2_new_extent_tree(root_bh, et_type, private); if (!et) { ret = -ENOMEM; mlog_errno(ret); @@ -4964,7 +5078,8 @@ int ocfs2_remove_extent(struct inode *inode, struct buffer_head *root_bh, u32 cpos, u32 len, handle_t *handle, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, - enum ocfs2_extent_tree_type et_type) + enum ocfs2_extent_tree_type et_type, + void *private) { int ret, index; u32 rec_range, trunc_range; @@ -4973,7 +5088,7 @@ int ocfs2_remove_extent(struct inode *inode, struct buffer_head *root_bh, struct ocfs2_path *path = NULL; struct ocfs2_extent_tree *et = NULL; - et = ocfs2_new_extent_tree(root_bh, et_type); + et = ocfs2_new_extent_tree(root_bh, et_type, private); if (!et) { ret = -ENOMEM; mlog_errno(ret); @@ -6608,9 +6723,8 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode, * this proves to be false, we could always re-build * the in-inode data from our pages. */ - ret = ocfs2_insert_extent(osb, handle, inode, di_bh, - 0, block, 1, 0, - NULL, OCFS2_DINODE_EXTENT); + ret = ocfs2_dinode_insert_extent(osb, handle, inode, di_bh, + 0, block, 1, 0, NULL); if (ret) { mlog_errno(ret); goto out_commit; diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index 5e090c5..ec7baeb 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -28,19 +28,29 @@ enum ocfs2_extent_tree_type { OCFS2_DINODE_EXTENT = 0, + OCFS2_XATTR_VALUE_EXTENT, }; struct ocfs2_alloc_context; -int ocfs2_insert_extent(struct ocfs2_super *osb, - handle_t *handle, - struct inode *inode, - struct buffer_head *root_bh, - u32 cpos, - u64 start_blk, - u32 new_clusters, - u8 flags, - struct ocfs2_alloc_context *meta_ac, - enum ocfs2_extent_tree_type et_type); +int ocfs2_dinode_insert_extent(struct ocfs2_super *osb, + handle_t *handle, + struct inode *inode, + struct buffer_head *root_bh, + u32 cpos, + u64 start_blk, + u32 new_clusters, + u8 flags, + struct ocfs2_alloc_context *meta_ac); +int ocfs2_xattr_value_insert_extent(struct ocfs2_super *osb, + handle_t *handle, + struct inode *inode, + struct buffer_head *root_bh, + u32 cpos, + u64 start_blk, + u32 new_clusters, + u8 flags, + struct ocfs2_alloc_context *meta_ac, + void *private); enum ocfs2_alloc_restarted { RESTART_NONE = 0, RESTART_TRANS, @@ -57,22 +67,26 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb, struct ocfs2_alloc_context *data_ac, struct ocfs2_alloc_context *meta_ac, enum ocfs2_alloc_restarted *reason_ret, - enum ocfs2_extent_tree_type type); + enum ocfs2_extent_tree_type type, + void *private); struct ocfs2_cached_dealloc_ctxt; int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *root_bh, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, - enum ocfs2_extent_tree_type et_type); + enum ocfs2_extent_tree_type et_type, + void *private); int ocfs2_remove_extent(struct inode *inode, struct buffer_head *root_bh, u32 cpos, u32 len, handle_t *handle, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc, - enum ocfs2_extent_tree_type et_type); + enum ocfs2_extent_tree_type et_type, + void *private); int ocfs2_num_free_extents(struct ocfs2_super *osb, struct inode *inode, struct buffer_head *root_bh, - enum ocfs2_extent_tree_type et_type); + enum ocfs2_extent_tree_type et_type, + void *private); /* * how many new metadata chunks would an allocation need at maximum? diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index e7acd28..530b1ff 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1279,7 +1279,7 @@ static int ocfs2_write_cluster(struct address_space *mapping, ret = ocfs2_mark_extent_written(inode, wc->w_di_bh, wc->w_handle, cpos, 1, phys, meta_ac, &wc->w_dealloc, - OCFS2_DINODE_EXTENT); + OCFS2_DINODE_EXTENT, NULL); if (ret < 0) { mlog_errno(ret); goto out; @@ -1721,7 +1721,8 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, ret = ocfs2_lock_allocators(inode, wc->w_di_bh, &di->id2.i_list, clusters_to_alloc, extents_to_split, - &data_ac, &meta_ac); + &data_ac, &meta_ac, + OCFS2_DINODE_EXTENT, NULL); if (ret) { mlog_errno(ret); goto out; diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c index 23c732f..d8a0cb9 100644 --- a/fs/ocfs2/cluster/masklog.c +++ b/fs/ocfs2/cluster/masklog.c @@ -109,6 +109,7 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = { define_mask(CONN), define_mask(QUORUM), define_mask(EXPORT), + define_mask(XATTR), define_mask(ERROR), define_mask(NOTICE), define_mask(KTHREAD), diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h index 597e064..57670c6 100644 --- a/fs/ocfs2/cluster/masklog.h +++ b/fs/ocfs2/cluster/masklog.h @@ -112,6 +112,7 @@ #define ML_CONN 0x0000000004000000ULL /* net connection management */ #define ML_QUORUM 0x0000000008000000ULL /* net connection quorum */ #define ML_EXPORT 0x0000000010000000ULL /* ocfs2 export operations */ +#define ML_XATTR 0x0000000020000000ULL /* ocfs2 extended attributes */ /* bits that are infrequently given and frequently matched in the high word */ #define ML_ERROR 0x0000000100000000ULL /* sent to KERN_ERR */ #define ML_NOTICE 0x0000000200000000ULL /* setn to KERN_NOTICE */ diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index d17c34b..5426a02 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -1305,8 +1305,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh, * This should never fail as our extent list is empty and all * related blocks have been journaled already. */ - ret = ocfs2_insert_extent(osb, handle, dir, di_bh, 0, blkno, len, 0, - NULL, OCFS2_DINODE_EXTENT); + ret = ocfs2_dinode_insert_extent(osb, handle, dir, di_bh, 0, blkno, + len, 0, NULL); if (ret) { mlog_errno(ret); goto out_commit; @@ -1337,8 +1337,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh, } blkno = ocfs2_clusters_to_blocks(dir->i_sb, bit_off); - ret = ocfs2_insert_extent(osb, handle, dir, di_bh, 1, blkno, - len, 0, NULL, OCFS2_DINODE_EXTENT); + ret = ocfs2_dinode_insert_extent(osb, handle, dir, di_bh, 1, + blkno, len, 0, NULL); if (ret) { mlog_errno(ret); goto out_commit; @@ -1482,7 +1482,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb, spin_unlock(&OCFS2_I(dir)->ip_lock); num_free_extents = ocfs2_num_free_extents(osb, dir, parent_fe_bh, - OCFS2_DINODE_EXTENT); + OCFS2_DINODE_EXTENT, + NULL); if (num_free_extents < 0) { status = num_free_extents; mlog_errno(status); diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index aed268e..a7b1cfa 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -551,6 +551,66 @@ static void ocfs2_relative_extent_offsets(struct super_block *sb, *num_clusters = le16_to_cpu(rec->e_leaf_clusters) - coff; } +int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster, + u32 *p_cluster, u32 *num_clusters, + struct ocfs2_extent_list *el) +{ + int ret = 0, i; + struct buffer_head *eb_bh = NULL; + struct ocfs2_extent_block *eb; + struct ocfs2_extent_rec *rec; + u32 coff; + + if (el->l_tree_depth) { + ret = ocfs2_find_leaf(inode, el, v_cluster, &eb_bh); + if (ret) { + mlog_errno(ret); + goto out; + } + + eb = (struct ocfs2_extent_block *) eb_bh->b_data; + el = &eb->h_list; + + if (el->l_tree_depth) { + ocfs2_error(inode->i_sb, + "Inode %lu has non zero tree depth in " + "xattr leaf block %llu\n", inode->i_ino, + (unsigned long long)eb_bh->b_blocknr); + ret = -EROFS; + goto out; + } + } + + i = ocfs2_search_extent_list(el, v_cluster); + if (i == -1) { + ret = -EROFS; + mlog_errno(ret); + goto out; + } else { + rec = &el->l_recs[i]; + BUG_ON(v_cluster < le32_to_cpu(rec->e_cpos)); + + if (!rec->e_blkno) { + ocfs2_error(inode->i_sb, "Inode %lu has bad extent " + "record (%u, %u, 0) in xattr", inode->i_ino, + le32_to_cpu(rec->e_cpos), + ocfs2_rec_clusters(el, rec)); + ret = -EROFS; + goto out; + } + coff = v_cluster - le32_to_cpu(rec->e_cpos); + *p_cluster = ocfs2_blocks_to_clusters(inode->i_sb, + le64_to_cpu(rec->e_blkno)); + *p_cluster = *p_cluster + coff; + if (num_clusters) + *num_clusters = ocfs2_rec_clusters(el, rec) - coff; + } +out: + if (eb_bh) + brelse(eb_bh); + return ret; +} + int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster, u32 *num_clusters, unsigned int *extent_flags) diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index 1b97490..1c4aa8b 100644 --- a/fs/ocfs2/extent_map.h +++ b/fs/ocfs2/extent_map.h @@ -53,4 +53,8 @@ int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno, int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 map_start, u64 map_len); +int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster, + u32 *p_cluster, u32 *num_clusters, + struct ocfs2_extent_list *el); + #endif /* _EXTENT_MAP_H */ diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 7bb4fde..89d8541 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -515,7 +515,7 @@ int ocfs2_add_inode_data(struct ocfs2_super *osb, clusters_to_add, mark_unwritten, fe_bh, el, handle, data_ac, meta_ac, reason_ret, - OCFS2_DINODE_EXTENT); + OCFS2_DINODE_EXTENT, NULL); } static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start, @@ -565,7 +565,7 @@ restart_all: clusters_to_add); status = ocfs2_lock_allocators(inode, bh, &fe->id2.i_list, clusters_to_add, 0, &data_ac, - &meta_ac); + &meta_ac, OCFS2_DINODE_EXTENT, NULL); if (status) { mlog_errno(status); goto leave; @@ -1237,7 +1237,8 @@ static int __ocfs2_remove_inode_range(struct inode *inode, struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; ret = ocfs2_lock_allocators(inode, di_bh, &di->id2.i_list, - 0, 1, NULL, &meta_ac); + 0, 1, NULL, &meta_ac, + OCFS2_DINODE_EXTENT, NULL); if (ret) { mlog_errno(ret); return ret; @@ -1268,7 +1269,7 @@ static int __ocfs2_remove_inode_range(struct inode *inode, } ret = ocfs2_remove_extent(inode, di_bh, cpos, len, handle, meta_ac, - dealloc, OCFS2_DINODE_EXTENT); + dealloc, OCFS2_DINODE_EXTENT, NULL); if (ret) { mlog_errno(ret); goto out_commit; diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index b642c82..bb774d7 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -1909,7 +1909,8 @@ int ocfs2_lock_allocators(struct inode *inode, struct buffer_head *root_bh, struct ocfs2_extent_list *root_el, u32 clusters_to_add, u32 extents_to_split, struct ocfs2_alloc_context **data_ac, - struct ocfs2_alloc_context **meta_ac) + struct ocfs2_alloc_context **meta_ac, + enum ocfs2_extent_tree_type type, void *private) { int ret = 0, num_free_extents; unsigned int max_recs_needed = clusters_to_add + 2 * extents_to_split; @@ -1922,7 +1923,7 @@ int ocfs2_lock_allocators(struct inode *inode, struct buffer_head *root_bh, BUG_ON(clusters_to_add != 0 && data_ac == NULL); num_free_extents = ocfs2_num_free_extents(osb, inode, root_bh, - OCFS2_DINODE_EXTENT); + type, private); if (num_free_extents < 0) { ret = num_free_extents; mlog_errno(ret); diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index a3e531e..9e026c8 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -166,5 +166,6 @@ int ocfs2_lock_allocators(struct inode *inode, struct buffer_head *root_bh, struct ocfs2_extent_list *root_el, u32 clusters_to_add, u32 extents_to_split, struct ocfs2_alloc_context **data_ac, - struct ocfs2_alloc_context **meta_ac); + struct ocfs2_alloc_context **meta_ac, + enum ocfs2_extent_tree_type type, void *private); #endif /* _CHAINALLOC_H_ */ diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c new file mode 100644 index 0000000..9604a4c --- /dev/null +++ b/fs/ocfs2/xattr.c @@ -0,0 +1,305 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * xattr.c + * + * Copyright (C) 2008 Oracle. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#define MLOG_MASK_PREFIX ML_XATTR +#include <cluster/masklog.h> + +#include "ocfs2.h" +#include "alloc.h" +#include "dlmglue.h" +#include "file.h" +#include "inode.h" +#include "journal.h" +#include "ocfs2_fs.h" +#include "suballoc.h" +#include "uptodate.h" +#include "buffer_head_io.h" + +static int ocfs2_xattr_extend_allocation(struct inode *inode, + u32 clusters_to_add, + struct buffer_head *xattr_bh, + struct ocfs2_xattr_value_root *xv) +{ + int status = 0; + int restart_func = 0; + int credits = 0; + handle_t *handle = NULL; + struct ocfs2_alloc_context *data_ac = NULL; + struct ocfs2_alloc_context *meta_ac = NULL; + enum ocfs2_alloc_restarted why; + struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); + struct ocfs2_extent_list *root_el = &xv->xr_list; + u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters); + + mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add); + +restart_all: + + status = ocfs2_lock_allocators(inode, xattr_bh, root_el, + clusters_to_add, 0, &data_ac, + &meta_ac, OCFS2_XATTR_VALUE_EXTENT, xv); + if (status) { + mlog_errno(status); + goto leave; + } + + credits = ocfs2_calc_extend_credits(osb->sb, root_el, clusters_to_add); + handle = ocfs2_start_trans(osb, credits); + if (IS_ERR(handle)) { + status = PTR_ERR(handle); + handle = NULL; + mlog_errno(status); + goto leave; + } + +restarted_transaction: + status = ocfs2_journal_access(handle, inode, xattr_bh, + OCFS2_JOURNAL_ACCESS_WRITE); + if (status < 0) { + mlog_errno(status); + goto leave; + } + + prev_clusters = le32_to_cpu(xv->xr_clusters); + status = ocfs2_add_clusters_in_btree(osb, + inode, + &logical_start, + clusters_to_add, + 0, + xattr_bh, + root_el, + handle, + data_ac, + meta_ac, + &why, + OCFS2_XATTR_VALUE_EXTENT, + xv); + if ((status < 0) && (status != -EAGAIN)) { + if (status != -ENOSPC) + mlog_errno(status); + goto leave; + } + + status = ocfs2_journal_dirty(handle, xattr_bh); + if (status < 0) { + mlog_errno(status); + goto leave; + } + + clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters; + + if (why != RESTART_NONE && clusters_to_add) { + if (why == RESTART_META) { + mlog(0, "restarting function.\n"); + restart_func = 1; + } else { + BUG_ON(why != RESTART_TRANS); + + mlog(0, "restarting transaction.\n"); + /* TODO: This can be more intelligent. */ + credits = ocfs2_calc_extend_credits(osb->sb, + root_el, + clusters_to_add); + status = ocfs2_extend_trans(handle, credits); + if (status < 0) { + /* handle still has to be committed at + * this point. */ + status = -ENOMEM; + mlog_errno(status); + goto leave; + } + goto restarted_transaction; + } + } + +leave: + if (handle) { + ocfs2_commit_trans(osb, handle); + handle = NULL; + } + if (data_ac) { + ocfs2_free_alloc_context(data_ac); + data_ac = NULL; + } + if (meta_ac) { + ocfs2_free_alloc_context(meta_ac); + meta_ac = NULL; + } + if ((!status) && restart_func) { + restart_func = 0; + goto restart_all; + } + + return status; +} + +static int __ocfs2_remove_xattr_range(struct inode *inode, + struct buffer_head *root_bh, + struct ocfs2_xattr_value_root *xv, + u32 cpos, u32 phys_cpos, u32 len, + struct ocfs2_cached_dealloc_ctxt *dealloc) +{ + int ret; + u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos); + struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); + struct inode *tl_inode = osb->osb_tl_inode; + handle_t *handle; + struct ocfs2_alloc_context *meta_ac = NULL; + + ret = ocfs2_lock_allocators(inode, root_bh, &xv->xr_list, + 0, 1, NULL, &meta_ac, + OCFS2_XATTR_VALUE_EXTENT, xv); + if (ret) { + mlog_errno(ret); + return ret; + } + + mutex_lock(&tl_inode->i_mutex); + + if (ocfs2_truncate_log_needs_flush(osb)) { + ret = __ocfs2_flush_truncate_log(osb); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + } + + handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + mlog_errno(ret); + goto out; + } + + ret = ocfs2_journal_access(handle, inode, root_bh, + OCFS2_JOURNAL_ACCESS_WRITE); + if (ret) { + mlog_errno(ret); + goto out_commit; + } + + ret = ocfs2_remove_extent(inode, root_bh, cpos, len, handle, meta_ac, + dealloc, OCFS2_XATTR_VALUE_EXTENT, xv); + if (ret) { + mlog_errno(ret); + goto out_commit; + } + + le32_add_cpu(&xv->xr_clusters, -len); + + ret = ocfs2_journal_dirty(handle, root_bh); + if (ret) { + mlog_errno(ret); + goto out_commit; + } + + ret = ocfs2_truncate_log_append(osb, handle, phys_blkno, len); + if (ret) + mlog_errno(ret); + +out_commit: + ocfs2_commit_trans(osb, handle); +out: + mutex_unlock(&tl_inode->i_mutex); + + if (meta_ac) + ocfs2_free_alloc_context(meta_ac); + + return ret; +} + +static int ocfs2_xattr_shrink_size(struct inode *inode, + u32 old_clusters, + u32 new_clusters, + struct buffer_head *root_bh, + struct ocfs2_xattr_value_root *xv) +{ + int ret = 0; + u32 trunc_len, cpos, phys_cpos, alloc_size; + u64 block; + struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); + struct ocfs2_cached_dealloc_ctxt dealloc; + + ocfs2_init_dealloc_ctxt(&dealloc); + + if (old_clusters <= new_clusters) + return 0; + + cpos = new_clusters; + trunc_len = old_clusters - new_clusters; + while (trunc_len) { + ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos, + &alloc_size, &xv->xr_list); + if (ret) { + mlog_errno(ret); + goto out; + } + + if (alloc_size > trunc_len) + alloc_size = trunc_len; + + ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos, + phys_cpos, alloc_size, + &dealloc); + if (ret) { + mlog_errno(ret); + goto out; + } + + block = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos); + ocfs2_remove_xattr_clusters_from_cache(inode, block, + alloc_size); + cpos += alloc_size; + trunc_len -= alloc_size; + } + +out: + ocfs2_schedule_truncate_log_flush(osb, 1); + ocfs2_run_deallocs(osb, &dealloc); + + return ret; +} + +static int ocfs2_xattr_value_truncate(struct inode *inode, + struct buffer_head *root_bh, + struct ocfs2_xattr_value_root *xv, + int len) +{ + int ret; + u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len); + u32 old_clusters = le32_to_cpu(xv->xr_clusters); + + if (new_clusters == old_clusters) + return 0; + + if (new_clusters > old_clusters) + ret = ocfs2_xattr_extend_allocation(inode, + new_clusters - old_clusters, + root_bh, xv); + else + ret = ocfs2_xattr_shrink_size(inode, + old_clusters, new_clusters, + root_bh, xv); + + return ret; +} |