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| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-01-20 15:11:43 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-01-21 18:06:49 -0800 |
| commit | 10f11900167a83e0c229c4c27e73e720ebd55b5c (patch) | |
| tree | ab1a3b7bd34f51ea09ef505ed518423332f53a99 /fs/btrfs/raid56.c | |
| parent | be50a8ddaae1d07135fd7e1c7017c1611075a560 (diff) | |
| download | linux-10f11900167a83e0c229c4c27e73e720ebd55b5c.tar.gz linux-10f11900167a83e0c229c4c27e73e720ebd55b5c.tar.bz2 linux-10f11900167a83e0c229c4c27e73e720ebd55b5c.zip | |
Btrfs: Include map_type in raid_bio
Corrent code use many kinds of "clever" way to determine operation
target's raid type, as:
raid_map != NULL
or
raid_map[MAX_NR] == RAID[56]_Q_STRIPE
To make code easy to maintenance, this patch put raid type into
bbio, and we can always get raid type from bbio with a "stupid"
way.
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>
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index cbc416204452..5264858ed768 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -994,10 +994,12 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_root *root, rbio->bio_pages = p + sizeof(struct page *) * num_pages; rbio->dbitmap = p + sizeof(struct page *) * num_pages * 2; - if (bbio->raid_map[real_stripes - 1] == RAID6_Q_STRIPE) + if (bbio->map_type & BTRFS_BLOCK_GROUP_RAID5) + nr_data = real_stripes - 1; + else if (bbio->map_type & BTRFS_BLOCK_GROUP_RAID6) nr_data = real_stripes - 2; else - nr_data = real_stripes - 1; + BUG(); rbio->nr_data = nr_data; return rbio; @@ -1850,9 +1852,7 @@ static void __raid_recover_end_io(struct btrfs_raid_bio *rbio) } /* all raid6 handling here */ - if (rbio->bbio->raid_map[rbio->real_stripes - 1] == - RAID6_Q_STRIPE) { - + if (rbio->bbio->map_type & BTRFS_BLOCK_GROUP_RAID6) { /* * single failure, rebuild from parity raid5 * style |