path: root/ipc
diff options
authorDave Hansen <>2006-09-30 23:29:03 -0700
committerLinus Torvalds <>2006-10-01 00:39:30 -0700
commit9a53c3a783c2fa9b969628e65695c11c3e51e673 (patch)
tree5a6115e18ee105246d46e3db3d5b07749d232f5b /ipc
parentaab520e2f6c80160cabd187a8d0292d1cec8ff68 (diff)
[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 <> Acked-by: Christoph Hellwig <> Cc: Al Viro <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'ipc')
1 files changed, 1 insertions, 1 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 840f8a6fb85f..10aa8eeeb112 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -307,7 +307,7 @@ static int mqueue_unlink(struct inode *dir, struct dentry *dentry)
dir->i_ctime = dir->i_mtime = dir->i_atime = CURRENT_TIME;
dir->i_size -= DIRENT_SIZE;
- inode->i_nlink--;
+ drop_nlink(inode);
return 0;