dm: optimize REQ_PREFLUSH with data when using the linear target

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If the table has only linear targets and there is just one underlying
device, we can optimize REQ_PREFLUSH with data - we don't have to split
it to two bios - a flush and a write. We can pass it to the linear target
directly.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>

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Mikulas Patocka 2025-09-15 17:42:45 +02:00

parent 4466dd3d71

commit 2b1c6d7a89

2 changed files with 25 additions and 8 deletions

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1

drivers/md/dm-core.h

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32

drivers/md/dm.c

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