Remove SYNC_ATTR check

[zfs.git] / module / zfs / zfs_vfsops.c

diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index 58d325f..c138b6f 100644 (file)
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -68,34 +68,6 @@
 #ifdef HAVE_ZPL
 extern int sys_shutdown;
 
-/*
- * We need to keep a count of active fs's.
- * This is necessary to prevent our module
- * from being unloaded after a umount -f
- */
-static uint32_t        zfs_active_fs_count = 0;
-
-static char *noatime_cancel[] = { MNTOPT_ATIME, NULL };
-static char *atime_cancel[] = { MNTOPT_NOATIME, NULL };
-static char *noxattr_cancel[] = { MNTOPT_XATTR, NULL };
-static char *xattr_cancel[] = { MNTOPT_NOXATTR, NULL };
-
-/*
- * MO_DEFAULT is not used since the default value is determined
- * by the equivalent property.
- */
-static mntopt_t mntopts[] = {
-       { MNTOPT_NOXATTR, noxattr_cancel, NULL, 0, NULL },
-       { MNTOPT_XATTR, xattr_cancel, NULL, 0, NULL },
-       { MNTOPT_NOATIME, noatime_cancel, NULL, 0, NULL },
-       { MNTOPT_ATIME, atime_cancel, NULL, 0, NULL }
-};
-
-static mntopts_t zfs_mntopts = {
-       sizeof (mntopts) / sizeof (mntopt_t),
-       mntopts
-};
-
 /*ARGSUSED*/
 int
 zfs_sync(vfs_t *vfsp, short flag, cred_t *cr)
@@ -107,15 +79,6 @@ zfs_sync(vfs_t *vfsp, short flag, cred_t *cr)
        if (panicstr)
                return (0);
 
-       /*
-        * SYNC_ATTR is used by fsflush() to force old filesystems like UFS
-        * to sync metadata, which they would otherwise cache indefinitely.
-        * Semantically, the only requirement is that the sync be initiated.
-        * The DMU syncs out txgs frequently, so there's nothing to do.
-        */
-       if (flag & SYNC_ATTR)
-               return (0);
-
        if (vfsp != NULL) {
                /*
                 * Sync a specific filesystem.
@@ -1104,8 +1067,6 @@ out:
        if (error) {
                dmu_objset_disown(zfsvfs->z_os, zfsvfs);
                zfsvfs_free(zfsvfs);
-       } else {
-               atomic_add_32(&zfs_active_fs_count, 1);
        }
 
        return (error);
@@ -1630,8 +1591,6 @@ zfs_freevfs(vfs_t *vfsp)
        zfsvfs_t *zfsvfs = vfsp->vfs_data;
 
        zfsvfs_free(zfsvfs);
-
-       atomic_add_32(&zfs_active_fs_count, -1);
 }
 #endif /* HAVE_ZPL */