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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-10 17:28:48 +0100
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-20 02:05:47 +0100
commita49762fd119d191dcbb2f638a2dbc2ed53f4e2bb (patch)
tree5cd999854d4b156c7bcd901694998e60b479f6e8 /fs/nilfs2
parentnilfs2: cleanup unused match_bool function (diff)
downloadlinux-a49762fd119d191dcbb2f638a2dbc2ed53f4e2bb.tar.xz
linux-a49762fd119d191dcbb2f638a2dbc2ed53f4e2bb.zip
nilfs2: remove buffer locking in nilfs_mark_inode_dirty
This lock is eliminable because inodes on the buffer can be updated independently. Although a log writer also fills in bmap data on the on-disk inodes, this update is exclusively done by a log writer lock. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/inode.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 2a0a5a3ac134..412b25a7d345 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -525,7 +525,6 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh)
raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, ibh);
- /* The buffer is guarded with lock_buffer() by the caller */
if (test_and_clear_bit(NILFS_I_NEW, &ii->i_state))
memset(raw_inode, 0, NILFS_MDT(sbi->s_ifile)->mi_entry_size);
set_bit(NILFS_I_INODE_DIRTY, &ii->i_state);
@@ -745,9 +744,7 @@ int nilfs_mark_inode_dirty(struct inode *inode)
"failed to reget inode block.\n");
return err;
}
- lock_buffer(ibh);
nilfs_update_inode(inode, ibh);
- unlock_buffer(ibh);
nilfs_mdt_mark_buffer_dirty(ibh);
nilfs_mdt_mark_dirty(sbi->s_ifile);
brelse(ibh);