[PATCH v2 0/9] ublk: simplify NEED_GET_DATA handling and request lookup
From: Caleb Sander Mateos
Date: Wed Apr 30 2025 - 19:04:00 EST
Remove accesses to ublk_io's cmd field after the I/O request is posted to the
ublk server. This allows the cmd field to be overlapped with a pointer to the
struct request, avoiding several blk_mq_tag_to_rq() lookups.
Fix a couple of typos noticed along the way.
Caleb Sander Mateos (8):
ublk: fix "immepdately" typo in comment
ublk: remove misleading "ubq" in "ubq_complete_io_cmd()"
ublk: take const ubq pointer in ublk_get_iod()
ublk: don't log uring_cmd cmd_op in ublk_dispatch_req()
ublk: factor out ublk_start_io() helper
ublk: don't call ublk_dispatch_req() for NEED_GET_DATA
ublk: check UBLK_IO_FLAG_OWNED_BY_SRV in ublk_abort_queue()
ublk: store request pointer in ublk_io
Uday Shankar (1):
ublk: factor out ublk_commit_and_fetch
drivers/block/ublk_drv.c | 252 ++++++++++++++++++++-------------------
1 file changed, 131 insertions(+), 121 deletions(-)
v2:
- Don't complete uring_cmd if ublk_map_io() returns 0 (Ming)
- Take const ubq pointers
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2.45.2