diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-05 16:00:48 (GMT) |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-20 01:05:47 (GMT) |
| commit | 9cb4e0d2b99e8b0e5e269d898ae6ab1967647c5a (patch) | |
| tree | 09ac1daa4985b4717afc818f89cfe2439664b44a | |
| parent | 09bf4aae0a3c471b721c43e7bdb6132200d907b2 (diff) | |
| download | linux-9cb4e0d2b99e8b0e5e269d898ae6ab1967647c5a.tar.xz | |
nilfs2: move out mark_inode_dirty calls from bmap routines
Previously, nilfs_bmap_add_blocks() and nilfs_bmap_sub_blocks() called
mark_inode_dirty() after they changed the number of data blocks.
This moves these calls outside bmap outermost functions like
nilfs_bmap_insert() or nilfs_bmap_truncate().
This will mitigate overhead for truncate or delete operation since
they repeatedly remove set of blocks. Nearly 10 percent improvement
was observed for removal of a large file:
# dd if=/dev/zero of=/test/aaa bs=1M count=512
# time rm /test/aaa
real 2.968s -> 2.705s
Further optimization may be possible by eliminating these
mark_inode_dirty() uses though I avoid mixing separate changes here.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
| -rw-r--r-- | fs/nilfs2/bmap.c | 4 | ||||
| -rw-r--r-- | fs/nilfs2/inode.c | 3 |
2 files changed, 3 insertions, 4 deletions
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c index afc060a..f4a14ea 100644 --- a/fs/nilfs2/bmap.c +++ b/fs/nilfs2/bmap.c @@ -402,15 +402,11 @@ int nilfs_bmap_test_and_clear_dirty(struct nilfs_bmap *bmap) void nilfs_bmap_add_blocks(const struct nilfs_bmap *bmap, int n) { inode_add_bytes(bmap->b_inode, (1 << bmap->b_inode->i_blkbits) * n); - if (!NILFS_MDT(bmap->b_inode)) - mark_inode_dirty(bmap->b_inode); } void nilfs_bmap_sub_blocks(const struct nilfs_bmap *bmap, int n) { inode_sub_bytes(bmap->b_inode, (1 << bmap->b_inode->i_blkbits) * n); - if (!NILFS_MDT(bmap->b_inode)) - mark_inode_dirty(bmap->b_inode); } __u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *bmap, diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 412b25a..a16c179 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -97,6 +97,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff, nilfs_transaction_abort(inode->i_sb); goto out; } + mark_inode_dirty(inode); nilfs_transaction_commit(inode->i_sb); /* never fails */ /* Error handling should be detailed */ set_buffer_new(bh_result); @@ -598,6 +599,7 @@ void nilfs_truncate(struct inode *inode) if (IS_SYNC(inode)) nilfs_set_transaction_flag(NILFS_TI_SYNC); + mark_inode_dirty(inode); nilfs_set_file_dirty(NILFS_SB(sb), inode, 0); nilfs_transaction_commit(sb); /* May construct a logical segment and may fail in sync mode. @@ -622,6 +624,7 @@ void nilfs_delete_inode(struct inode *inode) truncate_inode_pages(&inode->i_data, 0); nilfs_truncate_bmap(ii, 0); + mark_inode_dirty(inode); nilfs_free_inode(inode); /* nilfs_free_inode() marks inode buffer dirty */ if (IS_SYNC(inode)) |