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authorAl Viro <viro@zeniv.linux.org.uk>2006-10-18 13:55:46 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2006-12-04 02:00:24 -0500
commit914e26379decf1fd984b22e51fd2e4209b7a7f1b (patch)
tree4f20ee40e959699e344cdff0e117d309d238f6be /fs/super.c
parentf6a570333e554b48ad589e7137c77c57809eee81 (diff)
downloadlwn-914e26379decf1fd984b22e51fd2e4209b7a7f1b.tar.gz
lwn-914e26379decf1fd984b22e51fd2e4209b7a7f1b.zip
[PATCH] severing fs.h, radix-tree.h -> sched.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/super.c b/fs/super.c
index 47e554c12e76..84c320f6ad7e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -221,6 +221,24 @@ static int grab_super(struct super_block *s) __releases(sb_lock)
}
/*
+ * Superblock locking. We really ought to get rid of these two.
+ */
+void lock_super(struct super_block * sb)
+{
+ get_fs_excl();
+ mutex_lock(&sb->s_lock);
+}
+
+void unlock_super(struct super_block * sb)
+{
+ put_fs_excl();
+ mutex_unlock(&sb->s_lock);
+}
+
+EXPORT_SYMBOL(lock_super);
+EXPORT_SYMBOL(unlock_super);
+
+/*
* Write out and wait upon all dirty data associated with this
* superblock. Filesystem data as well as the underlying block
* device. Takes the superblock lock. Requires a second blkdev