Revert "xfs: block allocation work needs to be kswapd aware"

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This reverts commit 1f6d64829d.

This commit resulted in regressions in performance in low
memory situations where kswapd was doing writeback of delayed
allocation blocks. It resulted in significant parallelism of the
kswapd work and with the special kswapd flags meant that hundreds of
active allocation could dip into kswapd specific memory reserves and
avoid being throttled. This cause a large amount of performance
variation, as well as random OOM-killer invocations that didn't
previously exist.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Dave Chinner 2014-07-15 07:08:10 +10:00 • committed by Dave Chinner

parent a497c3ba1d

commit aa182e64f1

2 changed files with 9 additions and 20 deletions

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16

fs/xfs/xfs_bmap_util.c

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13

fs/xfs/xfs_bmap_util.h

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