From: Evgeniy Dushistov <dushistov@mail.ru>
Date: Fri, 3 Feb 2006 11:04:06 +0000 (-0800)
Subject: [PATCH] ufs: fix hang during `rm'
X-Git-Tag: v2.6.16-rc3~269
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=09114eb8c53d2d3b2ff9523e011cb68b2e245dce;p=pandora-kernel.git

[PATCH] ufs: fix hang during `rm'

This fixes the code like this:

	bh = sb_find_get_block (sb, tmp + j);
	if ((bh && DATA_BUFFER_USED(bh)) || tmp != fs32_to_cpu(sb, *p)) {
		retry = 1;
		brelse (bh);
		goto next1;
	}
	bforget (bh);

sb_find_get_block() ordinarily returns a buffer_head with b_count>=2, and
this code assume that in case if "b_count>1" buffer is used, so this caused
infinite loop.

(akpm: that is-the-buffer-busy code is incomprehensible.  Good riddance.  Use
of block_truncate_page() seems sane).

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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