diff options
Diffstat (limited to 'libbcachefs/super-io.c')
| -rw-r--r-- | libbcachefs/super-io.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/libbcachefs/super-io.c b/libbcachefs/super-io.c index ce7410d7..6a086c1c 100644 --- a/libbcachefs/super-io.c +++ b/libbcachefs/super-io.c @@ -23,6 +23,7 @@ #include <linux/backing-dev.h> #include <linux/sort.h> +#include <linux/string_choices.h> static const struct blk_holder_ops bch2_sb_handle_bdev_ops = { }; @@ -287,6 +288,11 @@ static int validate_sb_layout(struct bch_sb_layout *layout, struct printbuf *out return -BCH_ERR_invalid_sb_layout_nr_superblocks; } + if (layout->sb_max_size_bits > BCH_SB_LAYOUT_SIZE_BITS_MAX) { + prt_printf(out, "Invalid superblock layout: max_size_bits too high"); + return -BCH_ERR_invalid_sb_layout_sb_max_size_bits; + } + max_sectors = 1 << layout->sb_max_size_bits; prev_offset = le64_to_cpu(layout->sb_offset[0]); @@ -671,7 +677,8 @@ reread: } enum bch_csum_type csum_type = BCH_SB_CSUM_TYPE(sb->sb); - if (csum_type >= BCH_CSUM_NR) { + if (csum_type >= BCH_CSUM_NR || + bch2_csum_type_is_encryption(csum_type)) { prt_printf(err, "unknown checksum type %llu", BCH_SB_CSUM_TYPE(sb->sb)); return -BCH_ERR_invalid_sb_csum_type; } @@ -873,7 +880,7 @@ static void write_super_endio(struct bio *bio) ? BCH_MEMBER_ERROR_write : BCH_MEMBER_ERROR_read, "superblock %s error: %s", - bio_data_dir(bio) ? "write" : "read", + str_write_read(bio_data_dir(bio)), bch2_blk_status_to_str(bio->bi_status))) ca->sb_write_error = 1; @@ -886,14 +893,15 @@ static void read_back_super(struct bch_fs *c, struct bch_dev *ca) struct bch_sb *sb = ca->disk_sb.sb; struct bio *bio = ca->disk_sb.bio; + memset(ca->sb_read_scratch, 0, BCH_SB_READ_SCRATCH_BUF_SIZE); + bio_reset(bio, ca->disk_sb.bdev, REQ_OP_READ|REQ_SYNC|REQ_META); bio->bi_iter.bi_sector = le64_to_cpu(sb->layout.sb_offset[0]); bio->bi_end_io = write_super_endio; bio->bi_private = ca; - bch2_bio_map(bio, ca->sb_read_scratch, PAGE_SIZE); + bch2_bio_map(bio, ca->sb_read_scratch, BCH_SB_READ_SCRATCH_BUF_SIZE); - this_cpu_add(ca->io_done->sectors[READ][BCH_DATA_sb], - bio_sectors(bio)); + this_cpu_add(ca->io_done->sectors[READ][BCH_DATA_sb], bio_sectors(bio)); percpu_ref_get(&ca->io_ref); closure_bio_submit(bio, &c->sb_write); |