tcmu: fix double se_cmd completion

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If cmd_time_out != 0, then tcmu_queue_cmd_ring could end up
sleeping waiting for ring space, timing out and then returning
failure to lio, and tcmu_check_expired_cmd could also detect
the timeout and call target_complete_cmd on the cmd.

This patch just delays setting up the deadline value and adding
the cmd to the udev->commands idr until we have allocated ring
space and are about to send the cmd to userspace.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

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Mike Christie 2017-10-25 11:47:15 -05:00 • committed by Nicholas Bellinger

parent a271eac46a

commit 0d44374c1a

1 changed files with 31 additions and 23 deletions

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54

drivers/target/target_core_user.c

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