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authorjharmening <jason.harmening@gmail.com>2021-06-04 13:11:08 -0700
committerTony Hutter <hutter2@llnl.gov>2021-06-23 13:22:15 -0700
commitcd2bb9ca44a25cda1f7b81e7026028899743df7c (patch)
tree28eee73cae4dfab07e426f8e53b3fc4e4cecba91
parent52d9bc7174e25cd331741a34cdc1c1cb02f28e1f (diff)
FreeBSD: incorporate changes to the VFS_QUOTACTL(9) KPI
VFS_QUOTACTL(9) has been updated to allow each filesystem to indicate whether it has changed the busy state of the mount. The filesystem may still assume that its .vfs_quotactl entrypoint is always called with the mount busied, but only needs to unbusy the mount (and clear *mp_busy) if it does something that actually requires the mount to be unbusied. It no longer needs to blindly copy-paste the UFS protocol for calling vfs_unbusy(9) for the Q_QUOTAOFF and Q_QUOTAON commands. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Jason Harmening <jason.harmening@gmail.com> Closes #12052
-rw-r--r--module/os/freebsd/zfs/zfs_vfsops.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/module/os/freebsd/zfs/zfs_vfsops.c b/module/os/freebsd/zfs/zfs_vfsops.c
index a537342f9..4f2d7df87 100644
--- a/module/os/freebsd/zfs/zfs_vfsops.c
+++ b/module/os/freebsd/zfs/zfs_vfsops.c
@@ -102,7 +102,12 @@ SYSCTL_INT(_vfs_zfs_version, OID_AUTO, zpl, CTLFLAG_RD, &zfs_version_zpl, 0,
"ZPL_VERSION");
/* END CSTYLED */
+#if __FreeBSD_version >= 1400018
+static int zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg,
+ bool *mp_busy);
+#else
static int zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg);
+#endif
static int zfs_mount(vfs_t *vfsp);
static int zfs_umount(vfs_t *vfsp, int fflag);
static int zfs_root(vfs_t *vfsp, int flags, vnode_t **vpp);
@@ -267,7 +272,11 @@ done:
}
static int
+#if __FreeBSD_version >= 1400018
+zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg, bool *mp_busy)
+#else
zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg)
+#endif
{
zfsvfs_t *zfsvfs = vfsp->vfs_data;
struct thread *td;
@@ -291,8 +300,10 @@ zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg)
break;
default:
error = EINVAL;
+#if __FreeBSD_version < 1400018
if (cmd == Q_QUOTAON || cmd == Q_QUOTAOFF)
vfs_unbusy(vfsp);
+#endif
goto done;
}
}
@@ -351,11 +362,15 @@ zfs_quotactl(vfs_t *vfsp, int cmds, uid_t id, void *arg)
case Q_QUOTAON:
// As far as I can tell, you can't turn quotas on or off on zfs
error = 0;
+#if __FreeBSD_version < 1400018
vfs_unbusy(vfsp);
+#endif
break;
case Q_QUOTAOFF:
error = ENOTSUP;
+#if __FreeBSD_version < 1400018
vfs_unbusy(vfsp);
+#endif
break;
case Q_SETQUOTA:
error = copyin(arg, &dqblk, sizeof (dqblk));