Module Name: src
Committed By: gdt
Date: Sun Nov 3 14:00:52 UTC 2024
Modified Files:
src/external/cddl/osnet/dist/uts/common/fs/zfs: zvol.c
Log Message:
zvol: Implement DIOCCACHESYNC
Similarly to FreeBSD, simply call zil_commit when the DIOCCACHESYNC
ioctl is invoked on a zvol.
Tested in a xen dom0 with a domU's xbds provided by zvol on dom0. The
error message about DIOCCACHESYNC is gone, and (mysteriously)
operations in the domU seem faster.
Thanks to Michael van Elst via port-xen@ for pointing out where/how to
do this.
To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 \
src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c
diff -u src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c:1.13 src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c:1.14
--- src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c:1.13 Sat Feb 29 17:03:33 2020
+++ src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c Sun Nov 3 14:00:52 2024
@@ -3594,6 +3594,10 @@ zvol_ioctl(dev_t dev, int cmd, intptr_t
error = 0;
switch(cmd) {
+ case DIOCCACHESYNC:
+ zil_commit(zv->zv_zilog, ZVOL_OBJ);
+ break;
+
case DIOCGWEDGEINFO:
{
struct dkwedge_info *dkw = (void *) arg;
