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authorChristoph Hellwig <hch@lst.de>2009-05-11 23:35:03 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:09 -0400
commitebc1ac164560a241d9bf1b7519062910c3f90a01 (patch)
treedb17fd3043b15f8269cce2c2d00213814022fc30 /fs/fat
parent01ba687577647beef6c5f2ea59bfb56fac9fcde2 (diff)
downloadlinux-ebc1ac164560a241d9bf1b7519062910c3f90a01.tar.bz2
->write_super lock_super pushdown
Push down lock_super into ->write_super instances and remove it from the caller. Following filesystem don't need ->s_lock in ->write_super and are skipped: * bfs, nilfs2 - no other uses of s_lock and have internal locks in ->write_super * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in ->write_super * xfs - no other uses of s_lock and uses internal lock (buffer lock on superblock buffer) to serialize ->write_super. Also xfs_fs_write_super is superflous and will go away in the next merge window Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fat')
-rw-r--r--fs/fat/inode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 2b88c93af227..2292cbf7d364 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -441,10 +441,12 @@ static void fat_clear_inode(struct inode *inode)
static void fat_write_super(struct super_block *sb)
{
+ lock_super(sb);
sb->s_dirt = 0;
if (!(sb->s_flags & MS_RDONLY))
fat_clusters_flush(sb);
+ unlock_super(sb);
}
static void fat_put_super(struct super_block *sb)