From: Lepton Wu <ytht.net@gmail.com>
Date: Wed, 17 Oct 2007 06:30:04 +0000 (-0700)
Subject: reiserfs: workaround for dead loop in finish_unfinished
X-Git-Tag: v2.6.24-rc1~617
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb46f341d9868fe993626536c7449c2a1aec62a3;p=pandora-kernel.git

reiserfs: workaround for dead loop in finish_unfinished

There is possible dead loop in finish_unfinished function.

In most situation, the call chain iput -> ...  -> reiserfs_delete_inode ->
remove_save_link will success.  But for some reason such as data
corruption, reiserfs_delete_inode fails on reiserfs_do_truncate ->
search_for_position_by_key.

Then remove_save_link won't be called.  We always get the same
"save_link_key" in the while loop in finish_unfinished function.  The
following patch adds a check for the possible dead loop and just remove
save link when deap loop.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Lepton Wu <ytht.net@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: "Vladimir V. Saveliev" <vs@namesys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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