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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-07-05 15:15:01 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2010-08-09 16:48:53 -0400
commit4e29d50a28c267bd1d1731a9fb8f773663d93e23 (patch)
treeb1a299f96a513162db7d0ed1f198d820664e5bf5 /fs/bfs/bfs.h
parent7435d50611b04c1155a939a9f373154a53606592 (diff)
downloadlinux-4e29d50a28c267bd1d1731a9fb8f773663d93e23.tar.gz
BFS: clean up the superblock usage
BFS is a very simple FS and its superblocks contains only static information and is never changed. However, the BFS code for some misterious reasons marked its buffer head as dirty from time to time, but nothing in that buffer was ever changed. This patch removes all the BFS superblock manipulation, simply because it is not needed. It removes: 1. The si_sbh filed from 'struct bfs_sb_info' because it is not needed. We only need to read the SB once on mount to get the start of data blocks and the FS size. After this, we can forget about the SB. 2. All instances of 'mark_buffer_dirty(sbh)' for BFS SB because it is never changed. 3. The '->sync_fs()' method because there is nothing to sync (inodes are synched by VFS). 4. The '->write_super()' method, again, because the SB is never changed. Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/bfs/bfs.h')
-rw-r--r--fs/bfs/bfs.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 7109e451abf..f7f87e233dd 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -17,7 +17,6 @@ struct bfs_sb_info {
unsigned long si_lf_eblk;
unsigned long si_lasti;
unsigned long *si_imap;
- struct buffer_head *si_sbh; /* buffer header w/superblock */
struct mutex bfs_lock;
};