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zvol: Implement zvol threading as a Property

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Currently, zvol threading can be switched through the zvol_request_sync
module parameter system-wide. By making it a zvol property, zvol
threading can be switched per zvol.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #15409
This commit is contained in:
Ameer Hamza
2023-10-25 02:53:27 +05:00
committed by Brian Behlendorf
parent dbe839a9ca
commit 60387facd2
9 changed files with 51 additions and 2 deletions
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module/zfs/zfs_ioctl.c
+9
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@@ -2522,6 +2522,15 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
case ZFS_PROP_VOLSIZE:
err = zvol_set_volsize(dsname, intval);
break;
case ZFS_PROP_VOLTHREADING:
err = zvol_set_volthreading(dsname, intval);
/*
* Set err to -1 to force the zfs_set_prop_nvlist code down the
* default path to set the value in the nvlist.
*/
if (err == 0)
err = -1;
break;
case ZFS_PROP_SNAPDEV:
case ZFS_PROP_VOLMODE:
err = zvol_set_common(dsname, prop, source, intval);