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[PATCH] r/o bind mounts: monitor zeroing of i_nlink

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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 <[email protected]>
Acked-by: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Dave Hansen 2006-09-30 23:29:06 -07:00 • committed by Linus Torvalds
commit ce71ec3684
15 changed files with 26 additions and 21 deletions
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4
fs/fuse/dir.c
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@ -508,7 +508,7 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
/* Set nlink to zero so the inode can be cleared, if
the inode does have more links this will be
discovered at the next lookup/getattr */
inode->i_nlink = 0;
clear_nlink(inode);
fuse_invalidate_attr(inode);
fuse_invalidate_attr(dir);
fuse_invalidate_entry_cache(entry);
@ -534,7 +534,7 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
entry->d_inode->i_nlink = 0;
clear_nlink(entry->d_inode);
fuse_invalidate_attr(dir);
fuse_invalidate_entry_cache(entry);
} else if (err == -EINTR)