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bdev/raid: Use raid_ch as a pointer to raid_bdev_io_channel throughout

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In bdev_raid.c, to hold a pointer to raid_bdev_io_channel, some
have used ch and other have used raid_bdev_io_channel.

Using raid_ch as that purpose throughout will be consistent and
differentiation to pointers to spdk_io_channel, and will improve
readability.

Change-Id: Ib10729f9fa3ebbfdb7b7cc013386b9b5cc0e93cb
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/422920
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Kunal Sablok <kunal.sablok@intel.com>
This commit is contained in:
Shuhei Matsumoto 2018-08-21 08:25:27 +09:00 committed by Ben Walker
parent c7756fe71d
commit bc5906b14a
1 changed files with 28 additions and 28 deletions
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56
lib/bdev/raid/bdev_raid.c
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@ -85,16 +85,16 @@ static int
raid_bdev_create_cb(void *io_device, void *ctx_buf)
{
struct raid_bdev *raid_bdev = io_device;
struct raid_bdev_io_channel *ch = ctx_buf;
struct raid_bdev_io_channel *raid_ch = ctx_buf;
SPDK_DEBUGLOG(SPDK_LOG_BDEV_RAID, "raid_bdev_create_cb, %p\n", ch);
SPDK_DEBUGLOG(SPDK_LOG_BDEV_RAID, "raid_bdev_create_cb, %p\n", raid_ch);
assert(raid_bdev != NULL);
assert(raid_bdev->state == RAID_BDEV_STATE_ONLINE);
ch->base_bdevs_io_channel = calloc(raid_bdev->num_base_bdevs,
sizeof(struct spdk_io_channel *));
if (!ch->base_bdevs_io_channel) {
raid_ch->base_bdevs_io_channel = calloc(raid_bdev->num_base_bdevs,
sizeof(struct spdk_io_channel *));
if (!raid_ch->base_bdevs_io_channel) {
SPDK_ERRLOG("Unable to allocate base bdevs io channel\n");
return -1;
}
@ -104,13 +104,13 @@ raid_bdev_create_cb(void *io_device, void *ctx_buf)
* split logic to send the respective child bdev ios to respective base
* bdev io channel.
*/
ch->base_bdevs_io_channel[i] = spdk_bdev_get_io_channel(
raid_bdev->base_bdev_info[i].desc);
if (!ch->base_bdevs_io_channel[i]) {
raid_ch->base_bdevs_io_channel[i] = spdk_bdev_get_io_channel(
raid_bdev->base_bdev_info[i].desc);
if (!raid_ch->base_bdevs_io_channel[i]) {
for (uint32_t j = 0; j < i; j++) {
spdk_put_io_channel(ch->base_bdevs_io_channel[j]);
spdk_put_io_channel(raid_ch->base_bdevs_io_channel[j]);
}
free(ch->base_bdevs_io_channel);
free(raid_ch->base_bdevs_io_channel);
SPDK_ERRLOG("Unable to create io channel for base bdev\n");
return -1;
}
@ -132,22 +132,22 @@ raid_bdev_create_cb(void *io_device, void *ctx_buf)
static void
raid_bdev_destroy_cb(void *io_device, void *ctx_buf)
{
struct raid_bdev_io_channel *ch = ctx_buf;
struct raid_bdev_io_channel *raid_ch = ctx_buf;
struct raid_bdev *raid_bdev = io_device;
SPDK_DEBUGLOG(SPDK_LOG_BDEV_RAID, "raid_bdev_destroy_cb\n");
assert(raid_bdev != NULL);
assert(ch != NULL);
assert(ch->base_bdevs_io_channel);
assert(raid_ch != NULL);
assert(raid_ch->base_bdevs_io_channel);
for (uint32_t i = 0; i < raid_bdev->num_base_bdevs; i++) {
/* Free base bdev channels */
assert(ch->base_bdevs_io_channel[i] != NULL);
spdk_put_io_channel(ch->base_bdevs_io_channel[i]);
ch->base_bdevs_io_channel[i] = NULL;
assert(raid_ch->base_bdevs_io_channel[i] != NULL);
spdk_put_io_channel(raid_ch->base_bdevs_io_channel[i]);
raid_ch->base_bdevs_io_channel[i] = NULL;
}
free(ch->base_bdevs_io_channel);
ch->base_bdevs_io_channel = NULL;
free(raid_ch->base_bdevs_io_channel);
raid_ch->base_bdevs_io_channel = NULL;
}
/*
@ -315,12 +315,12 @@ raid_bdev_io_completion(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg
static int
raid_bdev_send_passthru(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
{
struct raid_bdev_io_channel *raid_bdev_io_channel;
struct raid_bdev_io_channel *raid_ch;
struct raid_bdev_io *raid_bdev_io;
struct raid_bdev *raid_bdev;
int ret;
raid_bdev_io_channel = spdk_io_channel_get_ctx(ch);
raid_ch = spdk_io_channel_get_ctx(ch);
raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
raid_bdev_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
raid_bdev_io->status = SPDK_BDEV_IO_STATUS_SUCCESS;
@ -333,14 +333,14 @@ raid_bdev_send_passthru(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io
raid_bdev_io->splits_comp_outstanding = 1;
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ) {
ret = spdk_bdev_read_blocks(raid_bdev->base_bdev_info[0].desc,
raid_bdev_io_channel->base_bdevs_io_channel[0],
raid_ch->base_bdevs_io_channel[0],
bdev_io->u.bdev.iovs->iov_base,
bdev_io->u.bdev.offset_blocks,
bdev_io->u.bdev.num_blocks, raid_bdev_io_completion,
bdev_io);
} else if (bdev_io->type == SPDK_BDEV_IO_TYPE_WRITE) {
ret = spdk_bdev_write_blocks(raid_bdev->base_bdev_info[0].desc,
raid_bdev_io_channel->base_bdevs_io_channel[0],
raid_ch->base_bdevs_io_channel[0],
bdev_io->u.bdev.iovs->iov_base,
bdev_io->u.bdev.offset_blocks,
bdev_io->u.bdev.num_blocks, raid_bdev_io_completion,
@ -386,7 +386,7 @@ static int
raid_bdev_submit_children(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io,
uint64_t start_strip, uint64_t end_strip, uint64_t cur_strip, uint8_t *buf)
{
struct raid_bdev_io_channel *raid_bdev_io_channel = spdk_io_channel_get_ctx(ch);
struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
struct raid_bdev_io *raid_bdev_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
struct raid_bdev *raid_bdev = (struct raid_bdev *)bdev_io->bdev->ctxt;
uint64_t pd_strip;
@ -435,13 +435,13 @@ raid_bdev_submit_children(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_
*/
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ) {
ret = spdk_bdev_read_blocks(raid_bdev->base_bdev_info[pd_idx].desc,
raid_bdev_io_channel->base_bdevs_io_channel[pd_idx],
raid_ch->base_bdevs_io_channel[pd_idx],
buf, pd_lba, pd_blocks, raid_bdev_io_completion,
bdev_io);
} else if (bdev_io->type == SPDK_BDEV_IO_TYPE_WRITE) {
ret = spdk_bdev_write_blocks(raid_bdev->base_bdev_info[pd_idx].desc,
raid_bdev_io_channel->base_bdevs_io_channel[pd_idx],
raid_ch->base_bdevs_io_channel[pd_idx],
buf, pd_lba, pd_blocks, raid_bdev_io_completion,
bdev_io);
} else {
@ -536,7 +536,7 @@ static void
raid_bdev_io_submit_fail_process(struct raid_bdev *raid_bdev, struct spdk_bdev_io *bdev_io,
struct raid_bdev_io *raid_bdev_io, int ret)
{
struct raid_bdev_io_channel *raid_bdev_io_channel;
struct raid_bdev_io_channel *raid_ch;
uint8_t pd_idx;
if (ret != -ENOMEM) {
@ -547,9 +547,9 @@ raid_bdev_io_submit_fail_process(struct raid_bdev *raid_bdev, struct spdk_bdev_i
raid_bdev_io->waitq_entry.bdev = raid_bdev->base_bdev_info[pd_idx].bdev;
raid_bdev_io->waitq_entry.cb_fn = raid_bdev_waitq_io_process;
raid_bdev_io->waitq_entry.cb_arg = raid_bdev_io;
raid_bdev_io_channel = spdk_io_channel_get_ctx(raid_bdev_io->ch);
raid_ch = spdk_io_channel_get_ctx(raid_bdev_io->ch);
if (spdk_bdev_queue_io_wait(raid_bdev->base_bdev_info[pd_idx].bdev,
raid_bdev_io_channel->base_bdevs_io_channel[pd_idx],
raid_ch->base_bdevs_io_channel[pd_idx],
&raid_bdev_io->waitq_entry) != 0) {
SPDK_ERRLOG("bdev io waitq error, it should not happen\n");
assert(0);