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module/raid: move duplicated error handling code

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Both callers of raid0_submit_rw_request() perform the same error
handling. Put it inside the function and change its return value to
void. After that, raid0_get_curr_base_bdev_index() becomes unused, so
remove it.

Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: Ifbe88700e413c3af9bb513538b3026c19e857d74
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/471077
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Artur Paszkiewicz 2019-10-08 14:56:24 +02:00 committed by Jim Harris
parent 1d246e97ab
commit 6e6d04b683
1 changed files with 14 additions and 45 deletions
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59
module/bdev/raid/bdev_raid.c
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@ -309,6 +309,13 @@ raid_bdev_base_io_completion(struct spdk_bdev_io *bdev_io, bool success, void *c
}
}
static void
raid_bdev_queue_io_wait(struct spdk_bdev_io *raid_bdev_io, uint8_t pd_idx,
spdk_bdev_io_wait_cb cb_fn, int ret);
static void
raid0_waitq_io_process(void *ctx);
/*
* brief:
* raid0_submit_rw_request function is used to submit I/O to the correct
@ -317,10 +324,9 @@ raid_bdev_base_io_completion(struct spdk_bdev_io *bdev_io, bool success, void *c
* bdev_io - parent bdev io
* start_strip - start strip number of this io
* returns:
* 0 - success
* non zero - failure
* none
*/
static int
static void
raid0_submit_rw_request(struct spdk_bdev_io *bdev_io, uint64_t start_strip)
{
struct raid_bdev_io *raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
@ -367,35 +373,11 @@ raid0_submit_rw_request(struct spdk_bdev_io *bdev_io, uint64_t start_strip)
assert(0);
}
return ret;
if (ret != 0) {
raid_bdev_queue_io_wait(bdev_io, pd_idx, raid0_waitq_io_process, ret);
}
}
/*
* brief:
* raid0_get_curr_base_bdev_index function calculates the base bdev index
* for raid0 bdevs.
* params:
* raid_bdev - pointer to raid bdev
* raid_io - pointer to parent io context
* returns:
* base bdev index
*/
static uint8_t
raid0_get_curr_base_bdev_index(struct raid_bdev *raid_bdev, struct raid_bdev_io *raid_io)
{
struct spdk_bdev_io *bdev_io;
uint64_t start_strip;
bdev_io = SPDK_CONTAINEROF(raid_io, struct spdk_bdev_io, driver_ctx);
start_strip = bdev_io->u.bdev.offset_blocks >> raid_bdev->strip_size_shift;
return (start_strip % raid_bdev->num_base_bdevs);
}
static void
raid_bdev_queue_io_wait(struct spdk_bdev_io *raid_bdev_io, uint8_t pd_idx,
spdk_bdev_io_wait_cb cb_fn, int ret);
/*
* brief:
* raid0_waitq_io_process function is the callback function
@ -411,7 +393,6 @@ raid0_waitq_io_process(void *ctx)
{
struct spdk_bdev_io *bdev_io = ctx;
struct raid_bdev *raid_bdev;
int ret;
uint64_t start_strip;
/*
@ -420,13 +401,7 @@ raid0_waitq_io_process(void *ctx)
*/
raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
start_strip = bdev_io->u.bdev.offset_blocks >> raid_bdev->strip_size_shift;
ret = raid0_submit_rw_request(bdev_io, start_strip);
if (ret != 0) {
struct raid_bdev_io *raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
uint8_t pd_idx = raid0_get_curr_base_bdev_index(raid_bdev, raid_io);
raid_bdev_queue_io_wait(bdev_io, pd_idx, raid0_waitq_io_process, ret);
}
raid0_submit_rw_request(bdev_io, start_strip);
}
/*
@ -446,7 +421,6 @@ raid0_start_rw_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
struct raid_bdev *raid_bdev;
uint64_t start_strip = 0;
uint64_t end_strip = 0;
int ret;
raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
@ -460,12 +434,7 @@ raid0_start_rw_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
return;
}
ret = raid0_submit_rw_request(bdev_io, start_strip);
if (ret != 0) {
uint8_t pd_idx = raid0_get_curr_base_bdev_index(raid_bdev, raid_io);
raid_bdev_queue_io_wait(bdev_io, pd_idx, raid0_waitq_io_process, ret);
}
raid0_submit_rw_request(bdev_io, start_strip);
}
/*