xfs: Print name and pid when memory allocation loops

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This patch adds comm name and pid to warning messages printed by
kmem_alloc(), kmem_zone_alloc() and xfs_buf_allocate_memory().
This will help telling which memory allocations (e.g. kernel worker
threads, OOM victim tasks, neither) are stalling because these functions
are passing __GFP_NOWARN which suppresses not only backtrace but comm name
and pid.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Tetsuo Handa 2015-10-12 15:41:29 +11:00 • committed by Dave Chinner

parent 1f93e4a96c

commit 5bf97b1cb4

2 changed files with 8 additions and 5 deletions

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10

fs/xfs/kmem.c

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3

fs/xfs/xfs_buf.c

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