From: Jens Axboe <axboe@fb.com>
Date: Thu, 5 Jun 2014 21:21:56 +0000 (-0600)
Subject: blk-mq: bump max tag depth to 10K tags
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~56^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4391c6465d9c978fd4bded12e34bdde3f5458f0;p=pandora-kernel.git

blk-mq: bump max tag depth to 10K tags

For some scsi-mq cases, the tag map can be huge. So increase the
max number of tags we support.

Additionally, don't fail with EINVAL if a user requests too many
tags. Warn that the tag depth has been adjusted down, and store
the new value inside the tag_set passed in.

Signed-off-by: Jens Axboe <axboe@fb.com>
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