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btrfs: raid56: enable bs > ps support

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The support code for bs > ps is complete, enable it and update
assertions.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo
2025-11-14 19:15:28 +10:30
committed by David Sterba
parent 89ca1a403e
commit 8870dbeedc
2 changed files with 6 additions and 11 deletions
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6
fs/btrfs/disk-io.c
View File

@@ -3258,12 +3258,6 @@ int btrfs_check_features(struct btrfs_fs_info *fs_info, bool is_rw_mount)
PAGE_SIZE, fs_info->sectorsize);
return -EINVAL;
}
if (fs_info->sectorsize > PAGE_SIZE && btrfs_fs_incompat(fs_info, RAID56)) {
btrfs_err(fs_info,
"RAID56 is not supported for page size %lu with sectorsize %u",
PAGE_SIZE, fs_info->sectorsize);
return -EINVAL;
}
/* This can be called by remount, we need to protect the super block. */
spin_lock(&fs_info->super_lock);

11
fs/btrfs/raid56.c
View File

@@ -1070,8 +1070,12 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_fs_info *fs_info,
const unsigned int sector_nsteps = fs_info->sectorsize / step;
struct btrfs_raid_bio *rbio;
/* PAGE_SIZE must also be aligned to sectorsize for subpage support */
ASSERT(IS_ALIGNED(PAGE_SIZE, fs_info->sectorsize));
/*
* For bs <= ps cases, ps must be aligned to bs.
* For bs > ps cases, bs must be aligned to ps.
*/
ASSERT(IS_ALIGNED(PAGE_SIZE, fs_info->sectorsize) ||
IS_ALIGNED(fs_info->sectorsize, PAGE_SIZE));
/*
* Our current stripe len should be fixed to 64k thus stripe_nsectors
* (at most 16) should be no larger than BITS_PER_LONG.
@@ -3014,9 +3018,6 @@ void raid56_parity_cache_data_folios(struct btrfs_raid_bio *rbio,
unsigned int foffset = 0;
int ret;
/* We shouldn't hit RAID56 for bs > ps cases for now. */
ASSERT(fs_info->sectorsize <= PAGE_SIZE);
/*
* If we hit ENOMEM temporarily, but later at
* raid56_parity_submit_scrub_rbio() time it succeeded, we just do