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zvol: Enable zvol threading functionality on FreeBSD

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Make zvol I/O requests processing asynchronous on FreeBSD side in some
cases. Clone zvol threading logic and required module parameters from
Linux side. Make zvol threadpool creation/destruction logic shared for
both Linux and FreeBSD.
The IO requests are processed asynchronously in next cases:
- volmode=geom: if IO request thread is geom thread or cannot sleep.
- volmode=cdev: if IO request passed thru struct cdevsw .d_strategy
routine, mean is AIO request.
In all other cases the IO requests are processed synchronously. The
volthreading zvol property is ignored on FreeBSD side.

Sponsored-by: vStack, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: @ImAwsumm
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #17169
This commit is contained in:
Fedor Uporov
2025-05-08 22:25:40 +03:00
committed by GitHub
parent f13d760aa8
commit 1a8f5ad3b0
8 changed files with 253 additions and 244 deletions
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tests/zfs-tests/include/libtest.shlib
+11 -7
View File
@@ -3386,17 +3386,21 @@ function set_tunable_impl
function save_tunable
{
[[ ! -d $TEST_BASE_DIR ]] && return 1
[[ -e $TEST_BASE_DIR/tunable-$1 ]] && return 2
echo "$(get_tunable """$1""")" > "$TEST_BASE_DIR"/tunable-"$1"
if tunable_exists $1 ; then
[[ ! -d $TEST_BASE_DIR ]] && return 1
[[ -e $TEST_BASE_DIR/tunable-$1 ]] && return 2
echo "$(get_tunable """$1""")" > "$TEST_BASE_DIR"/tunable-"$1"
fi
}
function restore_tunable
{
[[ ! -e $TEST_BASE_DIR/tunable-$1 ]] && return 1
val="$(cat $TEST_BASE_DIR/tunable-"""$1""")"
set_tunable64 "$1" "$val"
rm $TEST_BASE_DIR/tunable-$1
if tunable_exists $1 ; then
[[ ! -e $TEST_BASE_DIR/tunable-$1 ]] && return 1
val="$(cat $TEST_BASE_DIR/tunable-"""$1""")"
set_tunable64 "$1" "$val"
rm $TEST_BASE_DIR/tunable-$1
fi
}
#
tests/zfs-tests/include/tunables.cfg
+1
View File
@@ -102,6 +102,7 @@ VDEV_VALIDATE_SKIP vdev.validate_skip vdev_validate_skip
VOL_INHIBIT_DEV UNSUPPORTED zvol_inhibit_dev
VOL_MODE vol.mode zvol_volmode
VOL_RECURSIVE vol.recursive UNSUPPORTED
VOL_REQUEST_SYNC zvol_request_sync zvol_request_sync
VOL_USE_BLK_MQ UNSUPPORTED zvol_use_blk_mq
BCLONE_ENABLED bclone_enabled zfs_bclone_enabled
BCLONE_WAIT_DIRTY bclone_wait_dirty zfs_bclone_wait_dirty