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bdev/raid: extract reset failure code

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Break out the failure handling code to a separate
function.

Change-Id: Ic530bb4d33c19edb62360e06afe3946b963445b1
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/446008
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
This commit is contained in:
Xiaodong Liu 2019-02-25 00:24:00 +08:00 committed by Changpeng Liu
parent 4b92ffb3f1
commit 427fd1d76c
1 changed files with 39 additions and 10 deletions
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49
lib/bdev/raid/bdev_raid.c
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@ -494,6 +494,43 @@ raid_bdev_base_io_completion(struct spdk_bdev_io *bdev_io, bool success, void *c
}
}
/*
* brief:
* raid_bdev_base_io_submit_fail_process processes IO requests for member disk
* which failed to submit
* params:
* raid_bdev_io - pointer to raid bdev_io
* pd_idx - base_dev index in raid_bdev
* cb_fn - callback when the spdk_bdev_io for base_bdev becomes available
* ret - return code
* returns:
* none
*/
static void
raid_bdev_base_io_submit_fail_process(struct spdk_bdev_io *raid_bdev_io, uint8_t pd_idx,
spdk_bdev_io_wait_cb cb_fn, int ret)
{
struct raid_bdev_io *raid_io = (struct raid_bdev_io *)raid_bdev_io->driver_ctx;
struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(raid_io->ch);
struct raid_bdev *raid_bdev = (struct raid_bdev *)raid_bdev_io->bdev->ctxt;
assert(ret != 0);
if (ret == -ENOMEM) {
raid_io->waitq_entry.bdev = raid_bdev->base_bdev_info[pd_idx].bdev;
raid_io->waitq_entry.cb_fn = cb_fn;
raid_io->waitq_entry.cb_arg = raid_bdev_io;
spdk_bdev_queue_io_wait(raid_bdev->base_bdev_info[pd_idx].bdev,
raid_ch->base_channel[pd_idx],
&raid_io->waitq_entry);
return;
}
SPDK_ERRLOG("bdev io submit error not due to ENOMEM, it should not happen\n");
assert(false);
spdk_bdev_io_complete(raid_bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
}
/*
* brief:
* _raid_bdev_submit_reset_request_next function submits the next batch of reset requests
@ -525,17 +562,9 @@ _raid_bdev_submit_reset_request_next(void *_bdev_io)
raid_bdev_base_io_completion, bdev_io);
if (ret == 0) {
raid_io->base_bdev_io_submitted++;
} else if (ret == -ENOMEM) {
raid_io->waitq_entry.bdev = raid_bdev->base_bdev_info[i].bdev;
raid_io->waitq_entry.cb_fn = _raid_bdev_submit_reset_request_next;
raid_io->waitq_entry.cb_arg = bdev_io;
spdk_bdev_queue_io_wait(raid_bdev->base_bdev_info[i].bdev,
raid_ch->base_channel[i],
&raid_io->waitq_entry);
return;
} else {
assert(false);
spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
raid_bdev_base_io_submit_fail_process(bdev_io, i,
_raid_bdev_submit_reset_request_next, ret);
return;
}
}