struct ore_io_state *ios;
int ret;
- ret = ore_get_io_state(&sbi->layout, &sbi->comps, &ios);
+ ret = ore_get_io_state(&sbi->layout, &sbi->oc, &ios);
if (unlikely(ret)) {
EXOFS_ERR("%s: ore_get_io_state failed.\n", __func__);
return ret;
struct ore_io_state *ios;
int ret;
- ret = ore_get_io_state(&sbi->layout, &sbi->comps, &ios);
+ ret = ore_get_io_state(&sbi->layout, &sbi->oc, &ios);
if (unlikely(ret)) {
EXOFS_ERR("%s: ore_get_io_state failed.\n", __func__);
return ret;
/*
* Write the superblock to the OSD
*/
-int exofs_sync_fs(struct super_block *sb, int wait)
+static int exofs_sync_fs(struct super_block *sb, int wait)
{
struct exofs_sb_info *sbi;
struct exofs_fscb *fscb;
struct ore_comp one_comp;
- struct ore_components comps;
+ struct ore_components oc;
struct ore_io_state *ios;
int ret = -ENOMEM;
* the writeable info is set in exofs_sbi_write_stats() above.
*/
- exofs_init_comps(&comps, &one_comp, sbi, EXOFS_SUPER_ID);
+ exofs_init_comps(&oc, &one_comp, sbi, EXOFS_SUPER_ID);
- ret = ore_get_io_state(&sbi->layout, &comps, &ios);
+ ret = ore_get_io_state(&sbi->layout, &oc, &ios);
if (unlikely(ret))
goto out;
msg, dev_path ?: "", odi->osdname, _LLU(pid));
}
-void exofs_free_sbi(struct exofs_sb_info *sbi)
+static void exofs_free_sbi(struct exofs_sb_info *sbi)
{
- while (sbi->comps.numdevs) {
- int i = --sbi->comps.numdevs;
- struct osd_dev *od = sbi->comps.ods[i];
+ unsigned numdevs = sbi->oc.numdevs;
+
+ while (numdevs) {
+ unsigned i = --numdevs;
+ struct osd_dev *od = ore_comp_dev(&sbi->oc, i);
if (od) {
- sbi->comps.ods[i] = NULL;
+ ore_comp_set_dev(&sbi->oc, i, NULL);
osduld_put_device(od);
}
}
- if (sbi->comps.ods != sbi->_min_one_dev)
- kfree(sbi->comps.ods);
+ kfree(sbi->oc.ods);
kfree(sbi);
}
msecs_to_jiffies(100));
}
- _exofs_print_device("Unmounting", NULL, sbi->comps.ods[0],
+ _exofs_print_device("Unmounting", NULL, ore_comp_dev(&sbi->oc, 0),
sbi->one_comp.obj.partition);
bdi_destroy(&sbi->bdi);
static int _read_and_match_data_map(struct exofs_sb_info *sbi, unsigned numdevs,
struct exofs_device_table *dt)
{
- u64 stripe_length;
+ int ret;
- sbi->data_map.odm_num_comps =
- le32_to_cpu(dt->dt_data_map.cb_num_comps);
- sbi->data_map.odm_stripe_unit =
+ sbi->layout.stripe_unit =
le64_to_cpu(dt->dt_data_map.cb_stripe_unit);
- sbi->data_map.odm_group_width =
+ sbi->layout.group_width =
le32_to_cpu(dt->dt_data_map.cb_group_width);
- sbi->data_map.odm_group_depth =
+ sbi->layout.group_depth =
le32_to_cpu(dt->dt_data_map.cb_group_depth);
- sbi->data_map.odm_mirror_cnt =
- le32_to_cpu(dt->dt_data_map.cb_mirror_cnt);
- sbi->data_map.odm_raid_algorithm =
+ sbi->layout.mirrors_p1 =
+ le32_to_cpu(dt->dt_data_map.cb_mirror_cnt) + 1;
+ sbi->layout.raid_algorithm =
le32_to_cpu(dt->dt_data_map.cb_raid_algorithm);
-/* FIXME: Only raid0 for now. if not so, do not mount */
- if (sbi->data_map.odm_num_comps != numdevs) {
- EXOFS_ERR("odm_num_comps(%u) != numdevs(%u)\n",
- sbi->data_map.odm_num_comps, numdevs);
- return -EINVAL;
- }
- if (sbi->data_map.odm_raid_algorithm != PNFS_OSD_RAID_0) {
- EXOFS_ERR("Only RAID_0 for now\n");
- return -EINVAL;
- }
- if (0 != (numdevs % (sbi->data_map.odm_mirror_cnt + 1))) {
- EXOFS_ERR("Data Map wrong, numdevs=%d mirrors=%d\n",
- numdevs, sbi->data_map.odm_mirror_cnt);
- return -EINVAL;
- }
-
- if (0 != (sbi->data_map.odm_stripe_unit & ~PAGE_MASK)) {
- EXOFS_ERR("Stripe Unit(0x%llx)"
- " must be Multples of PAGE_SIZE(0x%lx)\n",
- _LLU(sbi->data_map.odm_stripe_unit), PAGE_SIZE);
- return -EINVAL;
- }
-
- sbi->layout.stripe_unit = sbi->data_map.odm_stripe_unit;
- sbi->layout.mirrors_p1 = sbi->data_map.odm_mirror_cnt + 1;
-
- if (sbi->data_map.odm_group_width) {
- sbi->layout.group_width = sbi->data_map.odm_group_width;
- sbi->layout.group_depth = sbi->data_map.odm_group_depth;
- if (!sbi->layout.group_depth) {
- EXOFS_ERR("group_depth == 0 && group_width != 0\n");
- return -EINVAL;
- }
- sbi->layout.group_count = sbi->data_map.odm_num_comps /
- sbi->layout.mirrors_p1 /
- sbi->data_map.odm_group_width;
- } else {
- if (sbi->data_map.odm_group_depth) {
- printk(KERN_NOTICE "Warning: group_depth ignored "
- "group_width == 0 && group_depth == %d\n",
- sbi->data_map.odm_group_depth);
- sbi->data_map.odm_group_depth = 0;
- }
- sbi->layout.group_width = sbi->data_map.odm_num_comps /
- sbi->layout.mirrors_p1;
- sbi->layout.group_depth = -1;
- sbi->layout.group_count = 1;
- }
-
- stripe_length = (u64)sbi->layout.group_width * sbi->layout.stripe_unit;
- if (stripe_length >= (1ULL << 32)) {
- EXOFS_ERR("Total Stripe length(0x%llx)"
- " >= 32bit is not supported\n", _LLU(stripe_length));
- return -EINVAL;
- }
+ ret = ore_verify_layout(numdevs, &sbi->layout);
EXOFS_DBGMSG("exofs: layout: "
"num_comps=%u stripe_unit=0x%x group_width=%u "
sbi->layout.group_width,
_LLU(sbi->layout.group_depth),
sbi->layout.mirrors_p1,
- sbi->data_map.odm_raid_algorithm);
- return 0;
+ sbi->layout.raid_algorithm);
+ return ret;
}
static unsigned __ra_pages(struct ore_layout *layout)
return !(odi->systemid_len || odi->osdname_len);
}
+int __alloc_dev_table(struct exofs_sb_info *sbi, unsigned numdevs,
+ struct exofs_dev **peds)
+{
+ struct __alloc_ore_devs_and_exofs_devs {
+ /* Twice bigger table: See exofs_init_comps() and comment at
+ * exofs_read_lookup_dev_table()
+ */
+ struct ore_dev *oreds[numdevs * 2 - 1];
+ struct exofs_dev eds[numdevs];
+ } *aoded;
+ struct exofs_dev *eds;
+ unsigned i;
+
+ aoded = kzalloc(sizeof(*aoded), GFP_KERNEL);
+ if (unlikely(!aoded)) {
+ EXOFS_ERR("ERROR: faild allocating Device array[%d]\n",
+ numdevs);
+ return -ENOMEM;
+ }
+
+ sbi->oc.ods = aoded->oreds;
+ *peds = eds = aoded->eds;
+ for (i = 0; i < numdevs; ++i)
+ aoded->oreds[i] = &eds[i].ored;
+ return 0;
+}
+
static int exofs_read_lookup_dev_table(struct exofs_sb_info *sbi,
struct osd_dev *fscb_od,
unsigned table_count)
{
struct ore_comp comp;
struct exofs_device_table *dt;
+ struct exofs_dev *eds;
unsigned table_bytes = table_count * sizeof(dt->dt_dev_table[0]) +
sizeof(*dt);
unsigned numdevs, i;
return -ENOMEM;
}
- sbi->comps.numdevs = 0;
+ sbi->oc.numdevs = 0;
comp.obj.partition = sbi->one_comp.obj.partition;
comp.obj.id = EXOFS_DEVTABLE_ID;
if (unlikely(ret))
goto out;
- if (likely(numdevs > 1)) {
- unsigned size = numdevs * sizeof(sbi->comps.ods[0]);
-
- /* Twice bigger table: See exofs_init_comps() and below
- * comment
- */
- sbi->comps.ods = kzalloc(size + size - 1, GFP_KERNEL);
- if (unlikely(!sbi->comps.ods)) {
- EXOFS_ERR("ERROR: faild allocating Device array[%d]\n",
- numdevs);
- ret = -ENOMEM;
- goto out;
- }
- }
+ ret = __alloc_dev_table(sbi, numdevs, &eds);
+ if (unlikely(ret))
+ goto out;
+ /* exofs round-robins the device table view according to inode
+ * number. We hold a: twice bigger table hence inodes can point
+ * to any device and have a sequential view of the table
+ * starting at this device. See exofs_init_comps()
+ */
+ memcpy(&sbi->oc.ods[numdevs], &sbi->oc.ods[0],
+ (numdevs - 1) * sizeof(sbi->oc.ods[0]));
for (i = 0; i < numdevs; i++) {
struct exofs_fscb fscb;
printk(KERN_NOTICE "Add device[%d]: osd_name-%s\n",
i, odi.osdname);
+ /* the exofs id is currently the table index */
+ eds[i].did = i;
+
/* On all devices the device table is identical. The user can
* specify any one of the participating devices on the command
* line. We always keep them in device-table order.
*/
if (fscb_od && osduld_device_same(fscb_od, &odi)) {
- sbi->comps.ods[i] = fscb_od;
- ++sbi->comps.numdevs;
+ eds[i].ored.od = fscb_od;
+ ++sbi->oc.numdevs;
fscb_od = NULL;
continue;
}
goto out;
}
- sbi->comps.ods[i] = od;
- ++sbi->comps.numdevs;
+ eds[i].ored.od = od;
+ ++sbi->oc.numdevs;
/* Read the fscb of the other devices to make sure the FS
* partition is there.
out:
kfree(dt);
- if (likely(!ret)) {
- unsigned numdevs = sbi->comps.numdevs;
-
- if (unlikely(fscb_od)) {
+ if (unlikely(fscb_od && !ret)) {
EXOFS_ERR("ERROR: Bad device-table container device not present\n");
osduld_put_device(fscb_od);
return -EINVAL;
- }
- /* exofs round-robins the device table view according to inode
- * number. We hold a: twice bigger table hence inodes can point
- * to any device and have a sequential view of the table
- * starting at this device. See exofs_init_comps()
- */
- for (i = 0; i < numdevs - 1; ++i)
- sbi->comps.ods[i + numdevs] = sbi->comps.ods[i];
}
return ret;
}
sbi->one_comp.obj.partition = opts->pid;
sbi->one_comp.obj.id = 0;
exofs_make_credential(sbi->one_comp.cred, &sbi->one_comp.obj);
- sbi->comps.numdevs = 1;
- sbi->comps.single_comp = EC_SINGLE_COMP;
- sbi->comps.comps = &sbi->one_comp;
- sbi->comps.ods = sbi->_min_one_dev;
+ sbi->oc.numdevs = 1;
+ sbi->oc.single_comp = EC_SINGLE_COMP;
+ sbi->oc.comps = &sbi->one_comp;
/* fill in some other data by hand */
memset(sb->s_id, 0, sizeof(sb->s_id));
if (unlikely(ret))
goto free_sbi;
} else {
- sbi->comps.ods[0] = od;
+ struct exofs_dev *eds;
+
+ ret = __alloc_dev_table(sbi, 1, &eds);
+ if (unlikely(ret))
+ goto free_sbi;
+
+ ore_comp_set_dev(&sbi->oc, 0, od);
}
__sbi_read_stats(sbi);
goto free_sbi;
}
- _exofs_print_device("Mounting", opts->dev_name, sbi->comps.ods[0],
+ _exofs_print_device("Mounting", opts->dev_name,
+ ore_comp_dev(&sbi->oc, 0),
sbi->one_comp.obj.partition);
return 0;
uint64_t used = ULLONG_MAX;
int ret;
- ret = ore_get_io_state(&sbi->layout, &sbi->comps, &ios);
+ ret = ore_get_io_state(&sbi->layout, &sbi->oc, &ios);
if (ret) {
EXOFS_DBGMSG("ore_get_io_state failed.\n");
return ret;
* EXPORT OPERATIONS
*****************************************************************************/
-struct dentry *exofs_get_parent(struct dentry *child)
+static struct dentry *exofs_get_parent(struct dentry *child)
{
unsigned long ino = exofs_parent_ino(child);
git.openpandora.org / pandora-kernel.git / blobdiff