tree 9b97747a61ae9cc802a3f87251971784417f02ea
parent d8f0737c392e17fdcda87156764ec62df36a8d4e
author Tatyana Brokhman <tlinder@codeaurora.org> 1349596336 +0200
committer Tatyana Brokhman <tlinder@codeaurora.org> 1349597968 +0200

mmc: block: Add write packing control

The write packing control will ensure that read requests latency is
not increased due to long write packed commands.

The trigger for enabling the write packing is managing to pack several
write requests. The number of potential packed requests that will trigger
the packing can be configured via sysfs by writing the required value to:
/sys/block/<block_dev_name>/num_wr_reqs_to_start_packing.
The trigger for disabling the write packing is fetching a read request.

Change-Id: I22e8ab04cd9aca220678784c39306068a0996790
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>