dm thin: defer whole cells rather than individual bios

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This avoids dropping the cell, so increases the probability that other
bios will collect within the cell, rather than being passed individually
to the worker.

Also add required process_cell and process_discard_cell error handling
wrappers and set associated pool-mode function pointers accordingly.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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Joe Thornber 2014-10-10 13:43:14 +01:00 • committed by Mike Snitzer

parent 452d7a620d

commit a374bb217b

2 changed files with 208 additions and 47 deletions

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1

drivers/md/dm-bio-prison.h

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254

drivers/md/dm-thin.c

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