__u32 lsm_md_layout_version;
__u32 lsm_md_migrate_offset;
__u32 lsm_md_migrate_hash;
- __u32 lsm_md_default_count;
- __u32 lsm_md_default_index;
char lsm_md_pool_name[LOV_MAXPOOLNAME + 1];
struct lmv_oinfo lsm_md_oinfo[0];
};
return cpu_to_le32(lmv->lmv_hash_type) & LMV_HASH_FLAG_FIXED;
}
+static inline __u8 lmv_inherit_next(__u8 inherit)
+{
+ if (inherit == LMV_INHERIT_END || inherit == LMV_INHERIT_NONE)
+ return LMV_INHERIT_NONE;
+
+ if (inherit == LMV_INHERIT_UNLIMITED || inherit > LMV_INHERIT_MAX)
+ return inherit;
+
+ return inherit - 1;
+}
+
+static inline __u8 lmv_inherit_rr_next(__u8 inherit_rr)
+{
+ if (inherit_rr == LMV_INHERIT_RR_NONE ||
+ inherit_rr == LMV_INHERIT_RR_UNLIMITED ||
+ inherit_rr > LMV_INHERIT_RR_MAX)
+ return inherit_rr;
+
+ return inherit_rr - 1;
+}
+
#endif
if (IS_ERR(op_data))
RETURN(PTR_ERR(op_data));
- op_data->op_dir_depth = ll_i2info(parent)->lli_dir_depth;
+ op_data->op_dir_depth = ll_i2info(parent)->lli_inherit_depth ?:
+ ll_i2info(parent)->lli_dir_depth;
if (ll_sbi_has_encrypt(sbi) &&
(IS_ENCRYPTED(parent) ||
pid_t lli_opendir_pid;
/* directory depth to ROOT */
unsigned short lli_dir_depth;
+ /* directory depth to ancestor whose default LMV is
+ * inherited.
+ */
+ unsigned short lli_inherit_depth;
/* stat will try to access statahead entries or start
* statahead if this flag is set, and this flag will be
* set upon dir open, and cleared when dir is closed,
lmv_free_memmd(lli->lli_default_lsm_md);
lli->lli_default_lsm_md = NULL;
}
+ lli->lli_inherit_depth = 0;
up_write(&lli->lli_lsm_sem);
}
RETURN_EXIT;
return 0;
}
+/* child default LMV is inherited from parent */
+static inline bool ll_default_lmv_inherited(struct lmv_stripe_md *pdmv,
+ struct lmv_stripe_md *cdmv)
+{
+ if (!pdmv || !cdmv)
+ return false;
+
+ if (pdmv->lsm_md_magic != cdmv->lsm_md_magic ||
+ pdmv->lsm_md_stripe_count != cdmv->lsm_md_stripe_count ||
+ pdmv->lsm_md_master_mdt_index != cdmv->lsm_md_master_mdt_index ||
+ pdmv->lsm_md_hash_type != cdmv->lsm_md_hash_type)
+ return false;
+
+ if (cdmv->lsm_md_max_inherit !=
+ lmv_inherit_next(pdmv->lsm_md_max_inherit))
+ return false;
+
+ if (cdmv->lsm_md_max_inherit_rr !=
+ lmv_inherit_rr_next(pdmv->lsm_md_max_inherit_rr))
+ return false;
+
+ return true;
+}
+
/* update directory depth to ROOT, called after LOOKUP lock is fetched. */
void ll_update_dir_depth(struct inode *dir, struct inode *inode)
{
+ struct ll_inode_info *plli;
struct ll_inode_info *lli;
if (!S_ISDIR(inode->i_mode))
if (inode == dir)
return;
+ plli = ll_i2info(dir);
lli = ll_i2info(inode);
- lli->lli_dir_depth = ll_i2info(dir)->lli_dir_depth + 1;
- CDEBUG(D_INODE, DFID" depth %hu\n",
- PFID(&lli->lli_fid), lli->lli_dir_depth);
+ lli->lli_dir_depth = plli->lli_dir_depth + 1;
+ if (plli->lli_default_lsm_md && lli->lli_default_lsm_md) {
+ down_read(&plli->lli_lsm_sem);
+ down_read(&lli->lli_lsm_sem);
+ if (ll_default_lmv_inherited(plli->lli_default_lsm_md,
+ lli->lli_default_lsm_md))
+ lli->lli_inherit_depth =
+ plli->lli_inherit_depth + 1;
+ else
+ lli->lli_inherit_depth = 0;
+ up_read(&lli->lli_lsm_sem);
+ up_read(&plli->lli_lsm_sem);
+ } else {
+ lli->lli_inherit_depth = 0;
+ }
+
+ CDEBUG(D_INODE, DFID" depth %hu default LMV depth %hu\n",
+ PFID(&lli->lli_fid), lli->lli_dir_depth, lli->lli_inherit_depth);
}
void ll_truncate_inode_pages_final(struct inode *inode)
struct ll_inode_info *lli = ll_i2info(dir);
struct lmv_stripe_md *lsm;
- op_data->op_dir_depth = lli->lli_dir_depth;
+ op_data->op_dir_depth = lli->lli_inherit_depth ?: lli->lli_dir_depth;
/* parent directory is striped */
if (unlikely(lli->lli_lsm_md))
lds_dir_def_striping_set:1;
};
-static inline __u8 lmv_inherit_next(__u8 inherit)
-{
- if (inherit == LMV_INHERIT_END || inherit == LMV_INHERIT_NONE)
- return LMV_INHERIT_NONE;
-
- if (inherit == LMV_INHERIT_UNLIMITED || inherit > LMV_INHERIT_MAX)
- return inherit;
-
- return inherit - 1;
-}
-
-static inline __u8 lmv_inherit_rr_next(__u8 inherit_rr)
-{
- if (inherit_rr == LMV_INHERIT_RR_NONE ||
- inherit_rr == LMV_INHERIT_RR_UNLIMITED ||
- inherit_rr > LMV_INHERIT_RR_MAX)
- return inherit_rr;
-
- return inherit_rr - 1;
-}
-
enum layout_verify_flags {
LVF_ALL_STALE = BIT(0), /* check not all stale mirrors */
};