diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/aops.c | 13 | ||||
| -rw-r--r-- | fs/gfs2/bmap.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/incore.h | 3 | ||||
| -rw-r--r-- | fs/gfs2/log.c | 76 | ||||
| -rw-r--r-- | fs/gfs2/log.h | 12 | ||||
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 1 | ||||
| -rw-r--r-- | fs/gfs2/super.c | 1 | ||||
| -rw-r--r-- | fs/gfs2/trans.c | 41 |
8 files changed, 79 insertions, 70 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 92340dd..24f414f 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -230,16 +230,14 @@ out_ignore: } /** - * gfs2_writeback_writepages - Write a bunch of dirty pages back to disk + * gfs2_writepages - Write a bunch of dirty pages back to disk * @mapping: The mapping to write * @wbc: Write-back control * - * For the data=writeback case we can already ignore buffer heads - * and write whole extents at once. This is a big reduction in the - * number of I/O requests we send and the bmap calls we make in this case. + * Used for both ordered and writeback modes. */ -static int gfs2_writeback_writepages(struct address_space *mapping, - struct writeback_control *wbc) +static int gfs2_writepages(struct address_space *mapping, + struct writeback_control *wbc) { return mpage_writepages(mapping, wbc, gfs2_get_block_noalloc); } @@ -1102,7 +1100,7 @@ cannot_release: static const struct address_space_operations gfs2_writeback_aops = { .writepage = gfs2_writeback_writepage, - .writepages = gfs2_writeback_writepages, + .writepages = gfs2_writepages, .readpage = gfs2_readpage, .readpages = gfs2_readpages, .write_begin = gfs2_write_begin, @@ -1118,6 +1116,7 @@ static const struct address_space_operations gfs2_writeback_aops = { static const struct address_space_operations gfs2_ordered_aops = { .writepage = gfs2_ordered_writepage, + .writepages = gfs2_writepages, .readpage = gfs2_readpage, .readpages = gfs2_readpages, .write_begin = gfs2_write_begin, diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 7a86275..d29d779 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -22,6 +22,7 @@ #include "meta_io.h" #include "quota.h" #include "rgrp.h" +#include "log.h" #include "super.h" #include "trans.h" #include "dir.h" @@ -1137,6 +1138,7 @@ static int trunc_end(struct gfs2_inode *ip) ip->i_height = 0; ip->i_goal = ip->i_no_addr; gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); + gfs2_ordered_del_inode(ip); } ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME; ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG; diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 19750bc..1533cf8 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -340,6 +340,7 @@ enum { GIF_QD_LOCKED = 1, GIF_ALLOC_FAILED = 2, GIF_SW_PAGED = 3, + GIF_ORDERED = 4, }; struct gfs2_inode { @@ -356,6 +357,7 @@ struct gfs2_inode { struct gfs2_rgrpd *i_rgd; u64 i_goal; /* goal block for allocations */ struct rw_semaphore i_rw_mutex; + struct list_head i_ordered; struct list_head i_trunc_list; __be64 *i_hash_cache; u32 i_entries; @@ -722,6 +724,7 @@ struct gfs2_sbd { struct list_head sd_log_le_revoke; struct list_head sd_log_le_databuf; struct list_head sd_log_le_ordered; + spinlock_t sd_ordered_lock; atomic_t sd_log_thresh1; atomic_t sd_log_thresh2; diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index f4beeb9..9a2ca8b 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -482,70 +482,66 @@ static void log_flush_wait(struct gfs2_sbd *sdp) } } -static int bd_cmp(void *priv, struct list_head *a, struct list_head *b) +static int ip_cmp(void *priv, struct list_head *a, struct list_head *b) { - struct gfs2_bufdata *bda, *bdb; + struct gfs2_inode *ipa, *ipb; - bda = list_entry(a, struct gfs2_bufdata, bd_list); - bdb = list_entry(b, struct gfs2_bufdata, bd_list); + ipa = list_entry(a, struct gfs2_inode, i_ordered); + ipb = list_entry(b, struct gfs2_inode, i_ordered); - if (bda->bd_bh->b_blocknr < bdb->bd_bh->b_blocknr) + if (ipa->i_no_addr < ipb->i_no_addr) return -1; - if (bda->bd_bh->b_blocknr > bdb->bd_bh->b_blocknr) + if (ipa->i_no_addr > ipb->i_no_addr) return 1; return 0; } static void gfs2_ordered_write(struct gfs2_sbd *sdp) { - struct gfs2_bufdata *bd; - struct buffer_head *bh; + struct gfs2_inode *ip; LIST_HEAD(written); - gfs2_log_lock(sdp); - list_sort(NULL, &sdp->sd_log_le_ordered, &bd_cmp); + spin_lock(&sdp->sd_ordered_lock); + list_sort(NULL, &sdp->sd_log_le_ordered, &ip_cmp); while (!list_empty(&sdp->sd_log_le_ordered)) { - bd = list_entry(sdp->sd_log_le_ordered.next, struct gfs2_bufdata, bd_list); - list_move(&bd->bd_list, &written); - bh = bd->bd_bh; - if (!buffer_dirty(bh)) + ip = list_entry(sdp->sd_log_le_ordered.next, struct gfs2_inode, i_ordered); + list_move(&ip->i_ordered, &written); + if (ip->i_inode.i_mapping->nrpages == 0) continue; - get_bh(bh); - gfs2_log_unlock(sdp); - lock_buffer(bh); - if (buffer_mapped(bh) && test_clear_buffer_dirty(bh)) { - bh->b_end_io = end_buffer_write_sync; - submit_bh(WRITE_SYNC, bh); - } else { - unlock_buffer(bh); - brelse(bh); - } - gfs2_log_lock(sdp); + spin_unlock(&sdp->sd_ordered_lock); + filemap_fdatawrite(ip->i_inode.i_mapping); + spin_lock(&sdp->sd_ordered_lock); } list_splice(&written, &sdp->sd_log_le_ordered); - gfs2_log_unlock(sdp); + spin_unlock(&sdp->sd_ordered_lock); } static void gfs2_ordered_wait(struct gfs2_sbd *sdp) { - struct gfs2_bufdata *bd; - struct buffer_head *bh; + struct gfs2_inode *ip; - gfs2_log_lock(sdp); + spin_lock(&sdp->sd_ordered_lock); while (!list_empty(&sdp->sd_log_le_ordered)) { - bd = list_entry(sdp->sd_log_le_ordered.prev, struct gfs2_bufdata, bd_list); - bh = bd->bd_bh; - if (buffer_locked(bh)) { - get_bh(bh); - gfs2_log_unlock(sdp); - wait_on_buffer(bh); - brelse(bh); - gfs2_log_lock(sdp); + ip = list_entry(sdp->sd_log_le_ordered.next, struct gfs2_inode, i_ordered); + list_del(&ip->i_ordered); + WARN_ON(!test_and_clear_bit(GIF_ORDERED, &ip->i_flags)); + if (ip->i_inode.i_mapping->nrpages == 0) continue; - } - list_del_init(&bd->bd_list); + spin_unlock(&sdp->sd_ordered_lock); + filemap_fdatawait(ip->i_inode.i_mapping); + spin_lock(&sdp->sd_ordered_lock); } - gfs2_log_unlock(sdp); + spin_unlock(&sdp->sd_ordered_lock); +} + +void gfs2_ordered_del_inode(struct gfs2_inode *ip) +{ + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); + + spin_lock(&sdp->sd_ordered_lock); + if (test_and_clear_bit(GIF_ORDERED, &ip->i_flags)) + list_del(&ip->i_ordered); + spin_unlock(&sdp->sd_ordered_lock); } /** diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h index 3fd5215..3566f35 100644 --- a/fs/gfs2/log.h +++ b/fs/gfs2/log.h @@ -48,6 +48,18 @@ static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp, sdp->sd_log_head = sdp->sd_log_tail = value; } +static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip) +{ + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); + + if (!test_bit(GIF_ORDERED, &ip->i_flags)) { + spin_lock(&sdp->sd_ordered_lock); + if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags)) + list_add(&ip->i_ordered, &sdp->sd_log_le_ordered); + spin_unlock(&sdp->sd_ordered_lock); + } +} +extern void gfs2_ordered_del_inode(struct gfs2_inode *ip); extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, unsigned int ssize); diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 5f5aba5..e063f22 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -102,6 +102,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) INIT_LIST_HEAD(&sdp->sd_log_le_revoke); INIT_LIST_HEAD(&sdp->sd_log_le_databuf); INIT_LIST_HEAD(&sdp->sd_log_le_ordered); + spin_lock_init(&sdp->sd_ordered_lock); init_waitqueue_head(&sdp->sd_log_waitq); init_waitqueue_head(&sdp->sd_logd_waitq); diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index c075b62..a3b40ee 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -1524,6 +1524,7 @@ out: /* Case 3 starts here */ truncate_inode_pages(&inode->i_data, 0); gfs2_rs_delete(ip); + gfs2_ordered_del_inode(ip); clear_inode(inode); gfs2_dir_hash_inval(ip); ip->i_gl->gl_object = NULL; diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c index 14dbf6d..88162fa 100644 --- a/fs/gfs2/trans.c +++ b/fs/gfs2/trans.c @@ -159,7 +159,9 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl, } /** - * databuf_lo_add - Add a databuf to the transaction. + * gfs2_trans_add_data - Add a databuf to the transaction. + * @gl: The inode glock associated with the buffer + * @bh: The buffer to add * * This is used in two distinct cases: * i) In ordered write mode @@ -174,33 +176,18 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl, * blocks, which isn't an enormous overhead but twice as much as * for normal metadata blocks. */ -static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) +void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh) { struct gfs2_trans *tr = current->journal_info; - struct address_space *mapping = bd->bd_bh->b_page->mapping; + struct gfs2_sbd *sdp = gl->gl_sbd; + struct address_space *mapping = bh->b_page->mapping; struct gfs2_inode *ip = GFS2_I(mapping->host); + struct gfs2_bufdata *bd; - if (tr) - tr->tr_touched = 1; - if (!list_empty(&bd->bd_list)) + if (!gfs2_is_jdata(ip)) { + gfs2_ordered_add_inode(ip); return; - set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); - set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); - if (gfs2_is_jdata(ip)) { - gfs2_pin(sdp, bd->bd_bh); - tr->tr_num_databuf_new++; - sdp->sd_log_num_databuf++; - list_add_tail(&bd->bd_list, &sdp->sd_log_le_databuf); - } else { - list_add_tail(&bd->bd_list, &sdp->sd_log_le_ordered); } -} - -void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh) -{ - - struct gfs2_sbd *sdp = gl->gl_sbd; - struct gfs2_bufdata *bd; lock_buffer(bh); gfs2_log_lock(sdp); @@ -214,7 +201,15 @@ void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh) gfs2_log_lock(sdp); } gfs2_assert(sdp, bd->bd_gl == gl); - databuf_lo_add(sdp, bd); + tr->tr_touched = 1; + if (list_empty(&bd->bd_list)) { + set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); + set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); + gfs2_pin(sdp, bd->bd_bh); + tr->tr_num_databuf_new++; + sdp->sd_log_num_databuf++; + list_add_tail(&bd->bd_list, &sdp->sd_log_le_databuf); + } gfs2_log_unlock(sdp); unlock_buffer(bh); } |
