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ZVOL: Make zvol_volmode module parameter platform-independent

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The module parameter name was not changed in FreeBSD sysctls
list: 'vfs.zfs.vol.mode'. Also, on Linux side the name is:
/sys/module/zfs/parameters/zvol_volmode.

Sponsored-by: vStack, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #17386
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Fedor Uporov 2025-06-01 02:09:50 +03:00 committed by GitHub
parent e1677d9ee1
commit e0edfcbd4e
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3 changed files with 3 additions and 5 deletions
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3
module/os/freebsd/zfs/zvol_os.c
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@ -135,8 +135,7 @@ static uint32_t zvol_minors;
SYSCTL_DECL(_vfs_zfs);
SYSCTL_NODE(_vfs_zfs, OID_AUTO, vol, CTLFLAG_RW, 0, "ZFS VOLUME");
SYSCTL_INT(_vfs_zfs_vol, OID_AUTO, mode, CTLFLAG_RWTUN, &zvol_volmode, 0,
"Expose as GEOM providers (1), device files (2) or neither");
static boolean_t zpool_on_zvol = B_FALSE;
SYSCTL_INT(_vfs_zfs_vol, OID_AUTO, recursive, CTLFLAG_RWTUN, &zpool_on_zvol, 0,
"Allow zpools to use zvols as vdevs (DANGEROUS)");

3
module/os/linux/zfs/zvol_os.c
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@ -1795,9 +1795,6 @@ MODULE_PARM_DESC(zvol_major, "Major number for zvol device");
module_param(zvol_max_discard_blocks, ulong, 0444);
MODULE_PARM_DESC(zvol_max_discard_blocks, "Max number of blocks to discard");
module_param(zvol_volmode, uint, 0644);
MODULE_PARM_DESC(zvol_volmode, "Default volmode property value");
module_param(zvol_blk_mq_queue_depth, uint, 0644);
MODULE_PARM_DESC(zvol_blk_mq_queue_depth, "Default blk-mq queue depth");

2
module/zfs/zvol.c
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@ -2159,6 +2159,8 @@ ZFS_MODULE_PARAM(zfs_vol, zvol_, inhibit_dev, UINT, ZMOD_RW,
"Do not create zvol device nodes");
ZFS_MODULE_PARAM(zfs_vol, zvol_, prefetch_bytes, UINT, ZMOD_RW,
"Prefetch N bytes at zvol start+end");
ZFS_MODULE_PARAM(zfs_vol, zvol_vol, mode, UINT, ZMOD_RW,
"Default volmode property value");
ZFS_MODULE_PARAM(zfs_vol, zvol_, threads, UINT, ZMOD_RW,
"Number of threads for I/O requests. Set to 0 to use all active CPUs");
ZFS_MODULE_PARAM(zfs_vol, zvol_, num_taskqs, UINT, ZMOD_RW,