From 9cb4e0d2b99e8b0e5e269d898ae6ab1967647c5a Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Fri, 6 Nov 2009 01:00:48 +0900 Subject: 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 --- fs/nilfs2/inode.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/nilfs2/inode.c') diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 412b25a7d345..a16c179f2b9a 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)) -- cgit v1.2.2