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authorDave Hansen <haveblue@us.ibm.com>2006-09-30 23:29:06 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:30 -0700
commitce71ec36840368b877fb63bd14c8e67ab62d08b1 (patch)
tree55ea3caaa339881dfd66d787b3dbbb964825d07a /include
parent17ff785691503f63ec648df82a7fdaece7695561 (diff)
[PATCH] r/o bind mounts: monitor zeroing of i_nlink
Some filesystems, instead of simply decrementing i_nlink, simply zero it during an unlink operation. We need to catch these in addition to the decrement operations. 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 'include')
-rw-r--r--include/linux/fs.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6a5267da565..3493d2828f7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1235,6 +1235,11 @@ static inline void drop_nlink(struct inode *inode)
inode->i_nlink--;
}
+static inline void clear_nlink(struct inode *inode)
+{
+ inode->i_nlink = 0;
+}
+
static inline void inode_dec_link_count(struct inode *inode)
{
drop_nlink(inode);