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bdev: adjust comment on spdk_bdev_io.internal.link

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This field hasn't been used for linking child IOs for a long time, so
adjust the comment to reflect its current uses.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I5775434e466ee1e3ad6e66cc94a16a4800da6b27
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16976
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
This commit is contained in:
Konrad Sztyber 2023-02-21 11:04:25 +01:00 committed by Ben Walker
parent 04c222f2db
commit 766ae96eaf
1 changed files with 6 additions and 1 deletions
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7
include/spdk/bdev_module.h
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@ -972,7 +972,12 @@ struct spdk_bdev_io {
/** Callback for when buf is allocated */ /** Callback for when buf is allocated */
spdk_bdev_io_get_buf_cb get_buf_cb; spdk_bdev_io_get_buf_cb get_buf_cb;
/** Member used for linking child I/Os together. */ /**
* Queue entry used in several cases:
* 1. IOs awaiting retry due to NOMEM status,
* 2. IOs awaiting submission due to QoS,
* 3. queued reset requests.
*/
TAILQ_ENTRY(spdk_bdev_io) link; TAILQ_ENTRY(spdk_bdev_io) link;
/** Entry to the list need_buf of struct spdk_bdev. */ /** Entry to the list need_buf of struct spdk_bdev. */