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authorDave Chinner2014-07-15 07:08:10 +1000
committerDave Chinner2014-07-15 07:08:10 +1000
commitaa182e64f16fc29a4984c2d79191b161888bbd9b (patch)
tree248089d2be2a62bcd08ebdf319882dfb1e9dfd18 /fs/xfs/xfs_trans_ail.c
parenta497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee (diff)
Revert "xfs: block allocation work needs to be kswapd aware"
This reverts commit 1f6d64829db78a7e1d63e15c9f48f0a5d2b5a679. 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>
Diffstat (limited to 'fs/xfs/xfs_trans_ail.c')
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