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authorDave Hansen <haveblue@us.ibm.com>2006-10-01 08:29:03 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 09:39:30 +0200
commit9a53c3a783c2fa9b969628e65695c11c3e51e673 (patch)
tree5a6115e18ee105246d46e3db3d5b07749d232f5b /fs/autofs4
parent[PATCH] r/o bind mount prepwork: move open_namei()'s vfs_create() (diff)
downloadlinux-9a53c3a783c2fa9b969628e65695c11c3e51e673.tar.xz
linux-9a53c3a783c2fa9b969628e65695c11c3e51e673.zip
[PATCH] r/o bind mounts: unlink: monitor i_nlink
When a filesystem decrements i_nlink to zero, it means that a write must be performed in order to drop the inode from the filesystem. We're shortly going to have keep filesystems from being remounted r/o between the time that this i_nlink decrement and that write occurs. So, add a little helper function to do the decrements. We'll tie into it in a bit to note when i_nlink hits zero. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/autofs4')
-rw-r--r--fs/autofs4/root.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 563ef9d7da9f..348bec0982b0 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -676,7 +676,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
dentry->d_inode->i_nlink = 0;
if (dir->i_nlink)
- dir->i_nlink--;
+ drop_nlink(dir);
return 0;
}