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author | 2006-09-30 23:29:03 -0700 | |
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committer | 2006-10-01 00:39:30 -0700 | |
commit | 9a53c3a783c2fa9b969628e65695c11c3e51e673 (patch) | |
tree | 5a6115e18ee105246d46e3db3d5b07749d232f5b /fs/autofs4 | |
parent | [PATCH] r/o bind mount prepwork: move open_namei()'s vfs_create() (diff) | |
download | linux-9a53c3a783c2fa9b969628e65695c11c3e51e673.tar.gz linux-9a53c3a783c2fa9b969628e65695c11c3e51e673.tar.bz2 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.c | 2 |
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; } |