From: Miklos Szeredi <miklos@szeredi.hu>
Date: Wed, 1 Mar 2006 00:59:03 +0000 (-0800)
Subject: [PATCH] fuse: fix bug in negative lookup
X-Git-Tag: v2.6.16-rc6~152
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50322fe7d46b544d5649edb58bdbe5c95dd44b98;p=pandora-kernel.git

[PATCH] fuse: fix bug in negative lookup

If negative entries (nodeid == 0) were sent in reply to LOOKUP requests,
two bugs could be triggered:

- looking up a negative entry would return -EIO,

- revaildate on an entry which turned negative would send a FORGET
  request with zero nodeid, which would cause an abort() in the
  library.

The above would only happen if the 'negative_timeout=N' option was used,
otherwise lookups reply -ENOENT, which worked correctly.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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