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btrfs: raid56: enable subpage support for RAID56

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Now the btrfs RAID56 infrastructure has migrated to use sector_ptr
interface, it should be safe to enable subpage support for RAID56.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2022-04-01 19:23:31 +08:00 committed by David Sterba
parent 3907ce293d
commit a7b8e39c92
3 changed files with 0 additions and 21 deletions
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8
fs/btrfs/disk-io.c
View file

@ -3686,14 +3686,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
btrfs_warn(fs_info,
"read-write for sector size %u with page size %lu is experimental",
sectorsize, PAGE_SIZE);
if (btrfs_super_incompat_flags(fs_info->super_copy) &
BTRFS_FEATURE_INCOMPAT_RAID56) {
btrfs_err(fs_info,
"RAID56 is not yet supported for sector size %u with page size %lu",
sectorsize, PAGE_SIZE);
err = -EINVAL;
goto fail_alloc;
}
subpage_info = kzalloc(sizeof(*subpage_info), GFP_KERNEL);
if (!subpage_info)
goto fail_alloc;

6
fs/btrfs/raid56.c
View file

@ -1154,9 +1154,6 @@ static int rbio_add_io_sector(struct btrfs_raid_bio *rbio,
ASSERT(sector_nr >= 0 && sector_nr < rbio->stripe_nsectors);
ASSERT(sector->page);
/* We don't yet support subpage, thus pgoff should always be 0 */
ASSERT(sector->pgoff == 0);
stripe = &rbio->bioc->stripes[stripe_nr];
disk_start = stripe->physical + sector_nr * sectorsize;
@ -2378,9 +2375,6 @@ struct btrfs_raid_bio *raid56_parity_alloc_scrub_rbio(struct bio *bio,
}
ASSERT(i < rbio->real_stripes);
/* Now we just support the sectorsize equals to page size */
ASSERT(fs_info->sectorsize == PAGE_SIZE);
ASSERT(rbio->stripe_npages == stripe_nsectors);
bitmap_copy(rbio->dbitmap, dbitmap, stripe_nsectors);
/*

7
fs/btrfs/volumes.c
View file

@ -4063,13 +4063,6 @@ static inline int validate_convert_profile(struct btrfs_fs_info *fs_info,
if (!(bargs->flags & BTRFS_BALANCE_ARGS_CONVERT))
return true;
if (fs_info->sectorsize < PAGE_SIZE &&
bargs->target & BTRFS_BLOCK_GROUP_RAID56_MASK) {
btrfs_err(fs_info,
"RAID56 is not yet supported for sectorsize %u with page size %lu",
fs_info->sectorsize, PAGE_SIZE);
return false;
}
/* Profile is valid and does not have bits outside of the allowed set */
if (alloc_profile_is_valid(bargs->target, 1) &&
(bargs->target & ~allowed) == 0)