From: amir73il@users.sourceforge.net
To: tytso@mit.edu
Cc: linux-ext4@vger.kernel.org
Subject: ext4: removal of alloc_sem locks from block allocation paths
Date: Sun, 20 Mar 2011 23:32:45 +0200 [thread overview]
Message-ID: <1300656770-14994-1-git-send-email-amir73il@users.sourceforge.net> (raw)
The purpose of this patch set is the removal of grp->alloc_sem locks
from block allocation paths.
This resulting code is cleaner and should perform better in concurrent
allocating tasks workloads.
I ran several xfstests runs with these patches (4K block only).
I tried several online resizes and verifyed that both in-core and on-disk
group counters are correct.
ext4: move ext4_add_groupblocks() to mballoc.c
ext4: implement ext4_add_groupblocks() by freeing blocks
ext4: synchronize ext4_mb_init_group() with buddy page lock
ext4: teach ext4_mb_init_cache() to skip uptodate buddy caches
ext4: remove alloc_semp
next reply other threads:[~2011-03-20 21:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-20 21:32 amir73il [this message]
2011-03-20 21:32 ` [PATCH 1/5] ext4: move ext4_add_groupblocks() to mballoc.c amir73il
2011-03-20 21:32 ` [PATCH 2/5] ext4: implement ext4_add_groupblocks() by freeing blocks amir73il
2011-03-20 21:32 ` [PATCH 3/5] ext4: synchronize ext4_mb_init_group() with buddy page lock amir73il
2011-03-20 21:32 ` [PATCH 4/5] ext4: teach ext4_mb_init_cache() to skip uptodate buddy caches amir73il
2011-03-20 21:32 ` [PATCH 5/5] ext4: remove alloc_semp amir73il
2011-03-23 21:04 ` ext4: removal of alloc_sem locks from block allocation paths Amir G.
2011-03-24 5:19 ` Amir G.
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