[dm-devel] [PATCHv2 0/2] dm-multipath: push back requests instead of queueing
Hannes Reinecke
hare at suse.de
Fri Jan 17 10:42:06 UTC 2014
Hi all,
dm-multipath still carries around it's own queueing framework for
implementing 'queue_if_no_path'.
However, there is no real reason for this; we could as well
push back the requests onto the request_queue.
In doing so we can also reduce the memory pressure during
fail_if_no_path scenarios, as we don't have to allocate a
context for each request when it need to be requeued.
This patchset is the reworked version from the original, including
the review by Jun'ichi.
Hannes Reinecke (2):
dm-mpath: push back requests instead of queueing
dm-mpath: reduce memory pressure during requeuing
drivers/md/dm-mpath.c | 183 +++++++++++++-----------------------------
drivers/md/dm.c | 13 +++
include/linux/device-mapper.h | 1 +
3 files changed, 71 insertions(+), 126 deletions(-)
--
1.7.12.4
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