c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 02:27:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

znode: expose zfs_get_zplprop to libzpool

Browse Source 
There's no particular reason this function should be kernel-only, and I
want to use it (indirectly) from zdb. I've moved it to zfs_znode.c
because libzpool does not compile in zfs_vfsops.c, and this at least
matches the header its imported from.

Sponsored-By: Klara, Inc.
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: WHR <msl0000023508@gmail.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #14642
This commit is contained in:
Rob Norris
2023-06-04 11:14:20 +10:00
committed by Brian Behlendorf
parent 5ba4025a8d
commit 2b9f8ba673
5 changed files with 173 additions and 172 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/zfs_vfsops.c
-85
View File
@@ -2052,91 +2052,6 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
return (0);
}
/*
* Read a property stored within the master node.
*/
int
zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value)
{
uint64_t *cached_copy = NULL;
/*
* Figure out where in the objset_t the cached copy would live, if it
* is available for the requested property.
*/
if (os != NULL) {
switch (prop) {
case ZFS_PROP_VERSION:
cached_copy = &os->os_version;
break;
case ZFS_PROP_NORMALIZE:
cached_copy = &os->os_normalization;
break;
case ZFS_PROP_UTF8ONLY:
cached_copy = &os->os_utf8only;
break;
case ZFS_PROP_CASE:
cached_copy = &os->os_casesensitivity;
break;
default:
break;
}
}
if (cached_copy != NULL && *cached_copy != OBJSET_PROP_UNINITIALIZED) {
*value = *cached_copy;
return (0);
}
/*
* If the property wasn't cached, look up the file system's value for
* the property. For the version property, we look up a slightly
* different string.
*/
const char *pname;
int error = ENOENT;
if (prop == ZFS_PROP_VERSION)
pname = ZPL_VERSION_STR;
else
pname = zfs_prop_to_name(prop);
if (os != NULL) {
ASSERT3U(os->os_phys->os_type, ==, DMU_OST_ZFS);
error = zap_lookup(os, MASTER_NODE_OBJ, pname, 8, 1, value);
}
if (error == ENOENT) {
/* No value set, use the default value */
switch (prop) {
case ZFS_PROP_VERSION:
*value = ZPL_VERSION;
break;
case ZFS_PROP_NORMALIZE:
case ZFS_PROP_UTF8ONLY:
*value = 0;
break;
case ZFS_PROP_CASE:
*value = ZFS_CASE_SENSITIVE;
break;
case ZFS_PROP_ACLTYPE:
*value = ZFS_ACLTYPE_OFF;
break;
default:
return (error);
}
error = 0;
}
/*
* If one of the methods for getting the property value above worked,
* copy it into the objset_t's cache.
*/
if (error == 0 && cached_copy != NULL) {
*cached_copy = *value;
}
return (error);
}
/*
* Return true if the corresponding vfs's unmounted flag is set.
* Otherwise return false.
module/os/linux/zfs/zfs_znode.c
+85
View File
@@ -2254,6 +2254,91 @@ zfs_obj_to_stats(objset_t *osp, uint64_t obj, zfs_stat_t *sb,
return (error);
}
/*
* Read a property stored within the master node.
*/
int
zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value)
{
uint64_t *cached_copy = NULL;
/*
* Figure out where in the objset_t the cached copy would live, if it
* is available for the requested property.
*/
if (os != NULL) {
switch (prop) {
case ZFS_PROP_VERSION:
cached_copy = &os->os_version;
break;
case ZFS_PROP_NORMALIZE:
cached_copy = &os->os_normalization;
break;
case ZFS_PROP_UTF8ONLY:
cached_copy = &os->os_utf8only;
break;
case ZFS_PROP_CASE:
cached_copy = &os->os_casesensitivity;
break;
default:
break;
}
}
if (cached_copy != NULL && *cached_copy != OBJSET_PROP_UNINITIALIZED) {
*value = *cached_copy;
return (0);
}
/*
* If the property wasn't cached, look up the file system's value for
* the property. For the version property, we look up a slightly
* different string.
*/
const char *pname;
int error = ENOENT;
if (prop == ZFS_PROP_VERSION)
pname = ZPL_VERSION_STR;
else
pname = zfs_prop_to_name(prop);
if (os != NULL) {
ASSERT3U(os->os_phys->os_type, ==, DMU_OST_ZFS);
error = zap_lookup(os, MASTER_NODE_OBJ, pname, 8, 1, value);
}
if (error == ENOENT) {
/* No value set, use the default value */
switch (prop) {
case ZFS_PROP_VERSION:
*value = ZPL_VERSION;
break;
case ZFS_PROP_NORMALIZE:
case ZFS_PROP_UTF8ONLY:
*value = 0;
break;
case ZFS_PROP_CASE:
*value = ZFS_CASE_SENSITIVE;
break;
case ZFS_PROP_ACLTYPE:
*value = ZFS_ACLTYPE_OFF;
break;
default:
return (error);
}
error = 0;
}
/*
* If one of the methods for getting the property value above worked,
* copy it into the objset_t's cache.
*/
if (error == 0 && cached_copy != NULL) {
*cached_copy = *value;
}
return (error);
}
#if defined(_KERNEL)
EXPORT_SYMBOL(zfs_create_fs);
EXPORT_SYMBOL(zfs_obj_to_path);