From: Qu Wenruo Date: Fri, 14 Nov 2025 08:45:28 +0000 (+1030) Subject: btrfs: raid56: enable bs > ps support X-Git-Tag: v6.19-rc1~167^2~18 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8870dbeedcf9576fbc5147654e272acad3d84089;p=thirdparty%2Fkernel%2Flinux.git btrfs: raid56: enable bs > ps support The support code for bs > ps is complete, enable it and update assertions. Signed-off-by: Qu Wenruo Signed-off-by: David Sterba --- diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 0df81a09a3d14..fe62f5a244f59 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -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); diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 4ebb6b6ba4a6a..fca9c73b01ea1 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -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