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authorGabriel Krisman Bertazi <krisman@collabora.com>2020-04-30 22:48:29 +0200
committerMike Snitzer <snitzer@redhat.com>2020-05-15 16:29:36 +0200
commit087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b (patch)
treea3ecdcc75df1e1a714466302ebb9f4f29d58bfd9 /drivers/md/Kconfig
parentdm writecache: improve performance on DDR persistent memory (Optane) (diff)
downloadlinux-087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b.tar.xz
linux-087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b.zip
dm mpath: pass IO start time to path selector
The HST path selector needs this information to perform path prediction. For request-based mpath, struct request's io_start_time_ns is used, while for bio-based, use the start_time stored in dm_io. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/Kconfig')
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