tree 4415b4e590913e16535704168ea74c6af5a93c48
parent 4fea2838aa00b9e59efde974dcdb455608192811
author Kirill Korotaev <dev@sw.ru> 1119510594 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1119545127 -0700

[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>