diff options
Diffstat (limited to 'module/zcommon/zprop_common.c')
| -rw-r--r-- | module/zcommon/zprop_common.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/module/zcommon/zprop_common.c b/module/zcommon/zprop_common.c index 838988a4c..0ce2ee762 100644 --- a/module/zcommon/zprop_common.c +++ b/module/zcommon/zprop_common.c @@ -34,6 +34,7 @@ #include <sys/spa.h> #include <sys/zfs_acl.h> #include <sys/zfs_ioctl.h> +#include <sys/zfs_sysfs.h> #include <sys/zfs_znode.h> #include <sys/fs/zfs.h> @@ -48,6 +49,7 @@ #include <stdlib.h> #include <string.h> #include <ctype.h> +#include <sys/stat.h> #endif static zprop_desc_t * @@ -68,6 +70,34 @@ zprop_get_numprops(zfs_type_t type) return (ZFS_NUM_PROPS); } +static boolean_t +zfs_mod_supported_prop(const char *name, zfs_type_t type) +{ +/* + * The zfs module spa_feature_table[], whether in-kernel or in libzpool, + * always supports all the properties. libzfs needs to query the running + * module, via sysfs, to determine which properties are supported. + */ +#if defined(_KERNEL) || defined(LIB_ZPOOL_BUILD) + return (B_TRUE); +#else + struct stat64 statbuf; + char *path; + boolean_t supported = B_FALSE; + int len; + + len = asprintf(&path, "%s/%s/%s", ZFS_SYSFS_DIR, + (type == ZFS_TYPE_POOL) ? ZFS_SYSFS_POOL_PROPERTIES : + ZFS_SYSFS_DATASET_PROPERTIES, name); + + if (len > 0) { + supported = !!(stat64(path, &statbuf) == 0); + free(path); + } + return (supported); +#endif +} + void zprop_register_impl(int prop, const char *name, zprop_type_t type, uint64_t numdefault, const char *strdefault, zprop_attr_t attr, @@ -94,6 +124,7 @@ zprop_register_impl(int prop, const char *name, zprop_type_t type, pd->pd_colname = colname; pd->pd_rightalign = rightalign; pd->pd_visible = visible; + pd->pd_zfs_mod_supported = zfs_mod_supported_prop(name, objset_types); pd->pd_table = idx_tbl; pd->pd_table_size = 0; while (idx_tbl && (idx_tbl++)->pi_name != NULL) @@ -193,6 +224,7 @@ zprop_iter_common(zprop_func func, void *cb, boolean_t show_all, prop = ZPROP_CONT; for (i = 0; i < num_props; i++) { if ((order[i]->pd_visible || show_all) && + order[i]->pd_zfs_mod_supported && (func(order[i]->pd_propnum, cb) != ZPROP_CONT)) { prop = order[i]->pd_propnum; break; |