From: Christoph Hellwig <hch@lst.de>
To: akpm@linux-foundation.org
Cc: joelaf@google.com, jszhang@marvell.com, chris@chris-wilson.co.uk,
joaodias@google.com, linux-mm@kvack.org,
linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: reduce latency in __purge_vmap_area_lazy
Date: Sat, 22 Oct 2016 17:17:13 +0200 [thread overview]
Message-ID: <1477149440-12478-1-git-send-email-hch@lst.de> (raw)
Hi all,
this is my spin at sorting out the long lock hold times in
__purge_vmap_area_lazy. It is based on the patch from Joel sent this
week. I don't have any good numbers for it, but it survived an
xfstests run on XFS which is a significant vmalloc user.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2016-10-22 15:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-22 15:17 Christoph Hellwig [this message]
2016-10-22 15:17 ` [PATCH 1/7] mm: remove free_unmap_vmap_area_noflush Christoph Hellwig
2016-10-22 15:17 ` [PATCH 2/7] mm: remove free_unmap_vmap_area_addr Christoph Hellwig
2016-10-22 15:17 ` [PATCH 3/7] mm: refactor __purge_vmap_area_lazy Christoph Hellwig
2016-10-22 15:17 ` [PATCH 4/7] mm: defer vmalloc from atomic context Christoph Hellwig
2016-10-24 15:44 ` Andrey Ryabinin
2016-11-05 3:43 ` Joel Fernandes
2016-11-07 15:01 ` Andrey Ryabinin
2016-11-07 15:09 ` Christoph Hellwig
2016-11-08 15:03 ` Andrey Ryabinin
2016-11-08 15:05 ` [PATCH 1/3] mm/vmalloc: add vfree_atomic() Andrey Ryabinin
2016-11-08 15:05 ` [PATCH 2/3] kernel/fork: use vfree_atomic() to free thread stack Andrey Ryabinin
2016-11-08 15:05 ` [PATCH 3/3] x86/ldt: use vfree_atomic() to free ldt entries Andrey Ryabinin
2016-11-07 16:50 ` [PATCH 4/7] mm: defer vmalloc from atomic context Joel Fernandes
2016-10-22 15:17 ` [PATCH 5/7] mm: mark all calls into the vmalloc subsystem as potentially sleeping Christoph Hellwig
2016-10-22 15:17 ` [PATCH 6/7] mm: turn vmap_purge_lock into a mutex Christoph Hellwig
2016-10-22 15:17 ` [PATCH 7/7] mm: add preempt points into __purge_vmap_area_lazy Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1477149440-12478-1-git-send-email-hch@lst.de \
--to=hch@lst.de \
--cc=akpm@linux-foundation.org \
--cc=chris@chris-wilson.co.uk \
--cc=joaodias@google.com \
--cc=joelaf@google.com \
--cc=jszhang@marvell.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-rt-users@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).