From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yu Zhao <yuzhao@google.com>, David Rientjes <rientjes@google.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Michal Hocko <mhocko@suse.com>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 4.4 24/30] swap: cond_resched in swap_cgroup_prepare()
Date: Thu, 29 Jun 2017 18:23:43 +0100 [thread overview]
Message-ID: <1498757023.1935.57.camel@codethink.co.uk> (raw)
In-Reply-To: <20170619152034.567871881@linuxfoundation.org>
On Mon, 2017-06-19 at 23:20 +0800, Greg Kroah-Hartman wrote:
> 4.4-stable review patch. If anyone has any objections, please let me know.
>
> ------------------
>
> From: Yu Zhao <yuzhao@google.com>
>
> commit ef70762948dde012146926720b70e79736336764 upstream.
>
> I saw need_resched() warnings when swapping on large swapfile (TBs)
> because continuously allocating many pages in swap_cgroup_prepare() took
> too long.
>
> We already cond_resched when freeing page in swap_cgroup_swapoff(). Do
> the same for the page allocation.
[...]
That seems to imply that this should also go into stable branches:
commit 460bcec84e11c75122ace5976214abbc596eb91b
Author: David Rientjes <rientjes@google.com>
Date: Fri Apr 7 16:05:00 2017 -0700
mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()
Ben.
--
Ben Hutchings
Software Developer, Codethink Ltd.
next prev parent reply other threads:[~2017-06-29 17:23 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-19 15:20 [PATCH 4.4 00/30] 4.4.74-stable review Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 01/30] configfs: Fix race between create_link and configfs_rmdir Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 02/30] can: gs_usb: fix memory leak in gs_cmd_reset() Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 04/30] [media] vb2: Fix an off by one error in vb2_plane_vaddr Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 05/30] mac80211: dont look at the PM bit of BAR frames Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 06/30] mac80211/wpa: use constant time memory comparison for MACs Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 08/30] mac80211: fix IBSS presp allocation size Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 10/30] x86/mm/32: Set the __vmalloc_start_set flag in initmem_init() Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 11/30] mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 12/30] staging: rtl8188eu: prevent an underflow in rtw_check_beacon_data() Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 13/30] iio: proximity: as3935: recalibrate RCO after resume Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 14/30] USB: hub: fix SS max number of ports Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 15/30] usb: core: fix potential memory leak in error path during hcd creation Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 16/30] [media] pvrusb2: reduce stack usage pvr2_eeprom_analyze() Greg Kroah-Hartman
2017-06-29 16:15 ` Ben Hutchings
2017-07-03 7:31 ` Greg Kroah-Hartman
2017-07-03 7:47 ` Arnd Bergmann
2017-07-03 13:37 ` Ben Hutchings
2017-07-03 14:39 ` Arnd Bergmann
2017-06-19 15:20 ` [PATCH 4.4 17/30] USB: gadget: dummy_hcd: fix hub-descriptor removable fields Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 18/30] usb: r8a66597-hcd: select a different endpoint on timeout Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 19/30] usb: r8a66597-hcd: decrease timeout Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 20/30] drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR() Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 21/30] usb: xhci: ASMedia ASM1042A chipset need shorts TX quirk Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 22/30] USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks Greg Kroah-Hartman
2017-06-29 16:57 ` Ben Hutchings
2017-06-29 18:10 ` Alan Stern
2017-06-19 15:20 ` [PATCH 4.4 23/30] mm/memory-failure.c: use compound_head() flags for huge pages Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 24/30] swap: cond_resched in swap_cgroup_prepare() Greg Kroah-Hartman
2017-06-29 17:23 ` Ben Hutchings [this message]
2017-07-03 7:29 ` Greg Kroah-Hartman
2017-06-19 15:20 ` [PATCH 4.4 25/30] genirq: Release resources in __setup_irq() error path Greg Kroah-Hartman
2017-06-19 15:21 ` [PATCH 4.4 26/30] alarmtimer: Prevent overflow of relative timers Greg Kroah-Hartman
2017-06-19 15:21 ` [PATCH 4.4 27/30] usb: dwc3: exynos fix axius clock error path to do cleanup Greg Kroah-Hartman
2017-06-19 15:21 ` [PATCH 4.4 28/30] MIPS: Fix bnezc/jialc return address calculation Greg Kroah-Hartman
2017-06-19 15:21 ` [PATCH 4.4 29/30] alarmtimer: Rate limit periodic intervals Greg Kroah-Hartman
2017-06-19 15:21 ` [PATCH 4.4 30/30] mm: larger stack guard gap, between vmas Greg Kroah-Hartman
2017-06-21 5:41 ` Hugh Dickins
2017-06-24 15:00 ` Greg Kroah-Hartman
2017-06-20 0:11 ` [PATCH 4.4 00/30] 4.4.74-stable review Guenter Roeck
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