| Message ID | 652ccbcbeb0af86caab62515908b2b6b66e88cb8.1603981453.git.dsterba@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Sectorsize, csum_size lifted to fs_info | expand |
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index a1a0b99c3530..1f2162fc1daa 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -932,6 +932,7 @@ struct btrfs_fs_info { u32 nodesize; u32 sectorsize; u32 sectorsize_bits; + u32 csum_size; u32 stripesize; /* Block groups and devices containing active swapfiles. */ diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 4e67c122389c..25dbdfa8bc4b 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3078,6 +3078,7 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device fs_info->nodesize = nodesize; fs_info->sectorsize = sectorsize; fs_info->sectorsize_bits = ilog2(sectorsize); + fs_info->csum_size = btrfs_super_csum_size(disk_super); fs_info->stripesize = stripesize; /*
In many places we need the checksum size and it is inefficient to read it from the raw superblock. Store the value into fs_info, actual use will be in followup patches. The size is u32 as it allows to generate better assembly than with u16. Signed-off-by: David Sterba <dsterba@suse.com> --- fs/btrfs/ctree.h | 1 + fs/btrfs/disk-io.c | 1 + 2 files changed, 2 insertions(+)