From: Kirill Korotaev <dev@sw.ru>
Date: Thu, 23 Jun 2005 07:09:54 +0000 (-0700)
Subject: [PATCH] O(1) sb list traversing on syncs
X-Git-Tag: v2.6.13-rc1~68^2~422
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=618f06362ae3f60f95d7b0e666de25ee6ae35679;p=pandora-kernel.git

[PATCH] O(1) sb list traversing on syncs

This patch removes O(n^2) super block loops in sync_inodes(),
sync_filesystems() etc.  in favour of using __put_super_and_need_restart()
which I introduced earlier.  We faced a noticably long freezes on sb
syncing when there are thousands of super blocks in the system.

Signed-Off-By: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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