https://github.com/torvalds/linux
Historically, !__GFP_FS allocations were not allowed to invoke the OOM killer once reclaim had failed, but nevertheless kept looping in the allocator. Commit 9879de7373fc ("mm: page_alloc: embed OOM killing naturally into allocation slowpath"), which should have been a simple cleanup patch, accidentally changed the behavior to aborting the allocation at that point. This creates problems with filesystem callers (?) that currently rely on the allocator waiting for other tasks to intervene. Revert the behavior as it shouldn't have been changed as part of a cleanup patch. Fixes: 9879de7373fc ("mm: page_alloc: embed OOM killing naturally into allocation slowpath") Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Dave Chinner <david@fromorbit.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: <stable@vger.kernel.org> [3.19.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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mm: page_alloc: revert inadvertent !__GFP_FS retry behavior change
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux/$ARCH $KERNELVERSION Kernel Configuration"
config SRCARCH
string
option env="SRCARCH"
source "arch/$SRCARCH/Kconfig"
Computing file changes ...