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bdev: push bounce data only for successful IOs

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The actual memory domain push already only happened for successfully
completed requests, but the code would go still go through
_bdev_io_push_bounce_data_buffer(), which could cause issues for IOs
completed with NOMEM, because the bounce buffer would be released in
_bdev_io_complete_push_bounce_done().

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Id1af1e31cb416e91bf11101a5ce7919530245e1e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17866
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Konrad Sztyber 2023-04-27 15:36:23 +02:00 committed by Jim Harris
parent 13b801bf37
commit f6339ffdb7
1 changed files with 25 additions and 20 deletions
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45
lib/bdev/bdev.c
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@ -1434,12 +1434,12 @@ _bdev_io_push_bounce_md_buffer(struct spdk_bdev_io *bdev_io)
struct spdk_bdev_channel *ch = bdev_io->internal.ch;
int rc = 0;
assert(bdev_io->internal.status == SPDK_BDEV_IO_STATUS_SUCCESS);
/* do the same for metadata buffer */
if (spdk_unlikely(bdev_io->internal.orig_md_iov.iov_base != NULL)) {
assert(spdk_bdev_is_md_separate(bdev_io->bdev));
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ &&
bdev_io->internal.status == SPDK_BDEV_IO_STATUS_SUCCESS) {
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ) {
if (bdev_io_use_memory_domain(bdev_io)) {
TAILQ_INSERT_TAIL(&ch->io_memory_domain, bdev_io, internal.link);
/* If memory domain is used then we need to call async push function */
@ -1498,12 +1498,12 @@ _bdev_io_push_bounce_data_buffer(struct spdk_bdev_io *bdev_io, bdev_copy_bounce_
struct spdk_bdev_channel *ch = bdev_io->internal.ch;
int rc = 0;
assert(bdev_io->internal.status == SPDK_BDEV_IO_STATUS_SUCCESS);
TAILQ_INSERT_TAIL(&ch->io_memory_domain, bdev_io, internal.link);
bdev_io->internal.data_transfer_cpl = cpl_cb;
/* if this is read path, copy data from bounce buffer to original buffer */
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ &&
bdev_io->internal.status == SPDK_BDEV_IO_STATUS_SUCCESS) {
if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ) {
if (bdev_io_use_memory_domain(bdev_io)) {
/* If memory domain is used then we need to call async push function */
rc = spdk_memory_domain_push_data(bdev_io->internal.memory_domain,
@ -3085,15 +3085,18 @@ bdev_io_split_done(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
spdk_trace_record(TRACE_BDEV_IO_DONE, 0, 0, (uintptr_t)parent_io, bdev_io->internal.caller_ctx);
TAILQ_REMOVE(&parent_io->internal.ch->io_submitted, parent_io, internal.ch_link);
if (bdev_io_needs_sequence_exec(parent_io->internal.desc, parent_io) &&
spdk_likely(success)) {
bdev_io_exec_sequence(parent_io, bdev_io_complete_parent_sequence_cb);
} else if (parent_io->internal.orig_iovcnt != 0) {
_bdev_io_push_bounce_data_buffer(parent_io, parent_bdev_io_complete);
/* bdev IO will be completed in the callback */
} else {
parent_bdev_io_complete(parent_io, 0);
if (spdk_likely(parent_io->internal.status == SPDK_BDEV_IO_STATUS_SUCCESS)) {
if (bdev_io_needs_sequence_exec(parent_io->internal.desc, parent_io)) {
bdev_io_exec_sequence(parent_io, bdev_io_complete_parent_sequence_cb);
return;
} else if (parent_io->internal.orig_iovcnt != 0) {
/* bdev IO will be completed in the callback */
_bdev_io_push_bounce_data_buffer(parent_io, parent_bdev_io_complete);
return;
}
}
parent_bdev_io_complete(parent_io, 0);
return;
}
@ -6963,14 +6966,16 @@ spdk_bdev_io_complete(struct spdk_bdev_io *bdev_io, enum spdk_bdev_io_status sta
return;
}
} else {
if (bdev_io_needs_sequence_exec(bdev_io->internal.desc, bdev_io) &&
spdk_likely(status == SPDK_BDEV_IO_STATUS_SUCCESS)) {
bdev_io_exec_sequence(bdev_io, bdev_io_complete_sequence_cb);
return;
} else if (spdk_unlikely(bdev_io->internal.orig_iovcnt != 0)) {
_bdev_io_push_bounce_data_buffer(bdev_io, _bdev_io_complete_push_bounce_done);
/* bdev IO will be completed in the callback */
return;
if (spdk_likely(status == SPDK_BDEV_IO_STATUS_SUCCESS)) {
if (bdev_io_needs_sequence_exec(bdev_io->internal.desc, bdev_io)) {
bdev_io_exec_sequence(bdev_io, bdev_io_complete_sequence_cb);
return;
} else if (spdk_unlikely(bdev_io->internal.orig_iovcnt != 0)) {
_bdev_io_push_bounce_data_buffer(bdev_io,
_bdev_io_complete_push_bounce_done);
/* bdev IO will be completed in the callback */
return;
}
}
_bdev_io_decrement_outstanding(bdev_ch, shared_resource);