Btrfs: Introduce BTRFS_BLOCK_GROUP_RAID56_MASK to check raid56 simply
So we can check raid56 with:
(map->type & BTRFS_BLOCK_GROUP_RAID56_MASK)
instead of long:
(map->type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6))
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0b4683f..2ecdac0 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1020,6 +1020,9 @@
BTRFS_BLOCK_GROUP_RAID6 | \
BTRFS_BLOCK_GROUP_DUP | \
BTRFS_BLOCK_GROUP_RAID10)
+#define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | \
+ BTRFS_BLOCK_GROUP_RAID6)
+
/*
* We need a bit for restriper to be able to tell when chunks of type
* SINGLE are available. This "extended" profile format is used in
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 220f0c3..2d14acb 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7812,8 +7812,7 @@
}
/* async crcs make it difficult to collect full stripe writes. */
- if (btrfs_get_alloc_profile(root, 1) &
- (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6))
+ if (btrfs_get_alloc_profile(root, 1) & BTRFS_BLOCK_GROUP_RAID56_MASK)
async_submit = 0;
else
async_submit = 1;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 19781e9..1ae527c 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1273,7 +1273,7 @@
{
int i;
- if (map_type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map_type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
/* RAID5/6 */
for (i = 0; i < nstripes; i++) {
if (raid_map[i] == RAID6_Q_STRIPE ||
@@ -1420,8 +1420,7 @@
static inline int scrub_is_page_on_raid56(struct scrub_page *page)
{
return page->recover &&
- (page->recover->bbio->map_type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6));
+ (page->recover->bbio->map_type & BTRFS_BLOCK_GROUP_RAID56_MASK);
}
static int scrub_submit_raid56_bio_wait(struct btrfs_fs_info *fs_info,
@@ -2994,8 +2993,7 @@
} else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
increment = map->stripe_len;
mirror_num = num % map->num_stripes + 1;
- } else if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ } else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
get_raid56_logic_offset(physical, num, map, &offset, NULL);
increment = map->stripe_len * nr_data_stripes(map);
mirror_num = 1;
@@ -3029,8 +3027,7 @@
*/
logical = base + offset;
physical_end = physical + nstripes * map->stripe_len;
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
get_raid56_logic_offset(physical_end, num,
map, &logic_end, NULL);
logic_end += base;
@@ -3076,8 +3073,7 @@
ret = 0;
while (physical < physical_end) {
/* for raid56, we skip parity stripe */
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
ret = get_raid56_logic_offset(physical, num,
map, &logical, &stripe_logical);
logical += base;
@@ -3235,8 +3231,7 @@
scrub_free_csums(sctx);
if (extent_logical + extent_len <
key.objectid + bytes) {
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
/*
* loop until we find next data stripe
* or we have finished all stripes.
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8933d70..da7e0e1 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4196,7 +4196,7 @@
static void check_raid56_incompat_flag(struct btrfs_fs_info *info, u64 type)
{
- if (!(type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)))
+ if (!(type & BTRFS_BLOCK_GROUP_RAID56_MASK))
return;
btrfs_set_fs_incompat(info, RAID56);
@@ -4803,10 +4803,8 @@
BUG_ON(em->start > logical || em->start + em->len < logical);
map = (struct map_lookup *)em->bdev;
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK)
len = map->stripe_len * nr_data_stripes(map);
- }
free_extent_map(em);
return len;
}
@@ -4826,8 +4824,7 @@
BUG_ON(em->start > logical || em->start + em->len < logical);
map = (struct map_lookup *)em->bdev;
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6))
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK)
ret = 1;
free_extent_map(em);
return ret;
@@ -4998,7 +4995,7 @@
stripe_offset = offset - stripe_offset;
/* if we're here for raid56, we need to know the stripe aligned start */
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
unsigned long full_stripe_len = stripe_len * nr_data_stripes(map);
raid56_full_stripe_start = offset;
@@ -5011,8 +5008,7 @@
if (rw & REQ_DISCARD) {
/* we don't discard raid56 yet */
- if (map->type &
- (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)) {
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
ret = -EOPNOTSUPP;
goto out;
}
@@ -5022,7 +5018,7 @@
/* For writes to RAID[56], allow a full stripeset across all disks.
For other RAID types and for RAID[56] reads, just allow a single
stripe (on a single disk). */
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) &&
+ if ((map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) &&
(rw & REQ_WRITE)) {
max_len = stripe_len * nr_data_stripes(map) -
(offset - raid56_full_stripe_start);
@@ -5188,8 +5184,7 @@
mirror_num = stripe_index - old_stripe_index + 1;
}
- } else if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ } else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
if (need_raid_map &&
((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
mirror_num > 1)) {
@@ -5253,7 +5248,7 @@
bbio->tgtdev_map = (int *)(bbio->stripes + num_alloc_stripes);
/* build raid_map */
- if (map->type & (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) &&
+ if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK &&
need_raid_map && ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
mirror_num > 1)) {
u64 tmp;
@@ -5534,8 +5529,7 @@
do_div(length, map->num_stripes / map->sub_stripes);
else if (map->type & BTRFS_BLOCK_GROUP_RAID0)
do_div(length, map->num_stripes);
- else if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
do_div(length, nr_data_stripes(map));
rmap_len = map->stripe_len * nr_data_stripes(map);
}