diff options
Diffstat (limited to 'module/zfs/zfs_ioctl.c')
| -rw-r--r-- | module/zfs/zfs_ioctl.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c index c63af167a..30338ac14 100644 --- a/module/zfs/zfs_ioctl.c +++ b/module/zfs/zfs_ioctl.c @@ -3785,7 +3785,7 @@ zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) /* * If this is a bootable dataset then - * the we don't allow large (>128K) blocks, + * we don't allow large (>128K) blocks, * because GRUB doesn't support them. */ if (zfs_is_bootfs(dsname) && @@ -3813,6 +3813,34 @@ zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) } break; + case ZFS_PROP_DNODESIZE: + /* Dnode sizes above 512 need the feature to be enabled */ + if (nvpair_value_uint64(pair, &intval) == 0 && + intval != ZFS_DNSIZE_LEGACY) { + spa_t *spa; + + /* + * If this is a bootable dataset then + * we don't allow large (>512B) dnodes, + * because GRUB doesn't support them. + */ + if (zfs_is_bootfs(dsname) && + intval != ZFS_DNSIZE_LEGACY) { + return (SET_ERROR(EDOM)); + } + + if ((err = spa_open(dsname, &spa, FTAG)) != 0) + return (err); + + if (!spa_feature_is_enabled(spa, + SPA_FEATURE_LARGE_DNODE)) { + spa_close(spa, FTAG); + return (SET_ERROR(ENOTSUP)); + } + spa_close(spa, FTAG); + } + break; + case ZFS_PROP_SHARESMB: if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) return (SET_ERROR(ENOTSUP)); |