From: Miklos Szeredi <mszeredi@suse.cz>
Date: Mon, 5 Mar 2012 14:48:11 +0000 (+0100)
Subject: fuse: fix nlink after unlink
X-Git-Tag: v3.4-rc4~28^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac45d61357e86b9a0cf14e45e8e09dfb626970ef;p=pandora-kernel.git

fuse: fix nlink after unlink

Anand Avati reports that the following sequence of system calls fail on a fuse
filesystem:


 	create("filename") => 0
 	link("filename", "linkname") => 0
 	unlink("filename") => 0
 	link("linkname", "filename") => -ENOENT ### BUG ###

vfs_link() fails with ENOENT if i_nlink is zero, this is done to prevent
resurrecting already deleted files.

Fuse clears i_nlink on unlink even if there are other links pointing to the
file.

Reported-by: Anand Avati <avati@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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