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Make HEAD OF QUEUE requests sync

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Since the block layer has no way to specify bio as HQ, there's no
choice, but to use every measure to approximate it as close as possible.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5416 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2014-04-15 22:04:54 +00:00
parent 723d233193
commit 914682b8c2
1 changed files with 1 additions and 0 deletions
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scst/src/dev_handlers/scst_vdisk.c
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@@ -4263,6 +4263,7 @@ static void blockio_exec_rw(struct vdisk_cmd_params *p, bool write, bool fua)
bio->bi_rw |= REQ_FUA;
if (cmd->queue_type == SCST_CMD_QUEUE_HEAD_OF_QUEUE) {
bio->bi_rw |= REQ_SYNC;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) || \
defined(RHEL_MAJOR) && RHEL_MAJOR -0 >= 6
bio->bi_rw |= REQ_META;