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zvol_os: fix build on Linux <3.13 

99741bde5 introduced zvol_num_taskqs, but put it behind the HAVE_BLK_MQ
define, preventing builds on versions of Linux that don't have it
(<3.13, incl EL7).

Nothing about it seems dependent on blk-mq, so this just moves it out
from behind that define and so fixes the build.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16062
This commit is contained in:
Rob N 2024-04-09 03:13:27 +10:00 committed by Tony Hutter
parent 5fc134ff2f
commit 5c0fe099ec
1 changed files with 2 additions and 1 deletions
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3
module/os/linux/zfs/zvol_os.c
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@ -81,9 +81,10 @@ static boolean_t zvol_use_blk_mq = B_FALSE;
* read and write tests to a zvol in an NVMe pool (with 16 CPUs).
*/
static unsigned int zvol_blk_mq_blocks_per_thread = 8;
static unsigned int zvol_num_taskqs = 0;
#endif
static unsigned int zvol_num_taskqs = 0;
#ifndef BLKDEV_DEFAULT_RQ
/* BLKDEV_MAX_RQ was renamed to BLKDEV_DEFAULT_RQ in the 5.16 kernel */
#define BLKDEV_DEFAULT_RQ BLKDEV_MAX_RQ