diff options
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r-- | fs/btrfs/disk-io.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 91d1239..1142127 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -384,7 +384,7 @@ static int verify_parent_transid(struct extent_io_tree *io_tree, /* * Things reading via commit roots that don't have normal protection, * like send, can have a really old block in cache that may point at a - * block that has been free'd and re-allocated. So don't clear uptodate + * block that has been freed and re-allocated. So don't clear uptodate * if we find an eb that is under IO (dirty/writeback) because we could * end up reading in the stale data and then writing it back out and * making everybody very sad. @@ -418,7 +418,7 @@ static int btrfs_check_super_csum(char *raw_disk_sb) /* * The super_block structure does not span the whole * BTRFS_SUPER_INFO_SIZE range, we expect that the unused space - * is filled with zeros and is included in the checkum. + * is filled with zeros and is included in the checksum. */ crc = btrfs_csum_data(raw_disk_sb + BTRFS_CSUM_SIZE, crc, BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); @@ -600,7 +600,7 @@ static noinline int check_leaf(struct btrfs_root *root, /* * Check to make sure that we don't point outside of the leaf, - * just incase all the items are consistent to eachother, but + * just in case all the items are consistent to each other, but * all point outside of the leaf. */ if (btrfs_item_end_nr(leaf, slot) > @@ -1147,7 +1147,8 @@ struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root, u64 bytenr) { if (btrfs_test_is_dummy_root(root)) - return alloc_test_extent_buffer(root->fs_info, bytenr); + return alloc_test_extent_buffer(root->fs_info, bytenr, + root->nodesize); return alloc_extent_buffer(root->fs_info, bytenr); } @@ -1314,14 +1315,16 @@ static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info, #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS /* Should only be used by the testing infrastructure */ -struct btrfs_root *btrfs_alloc_dummy_root(void) +struct btrfs_root *btrfs_alloc_dummy_root(u32 sectorsize, u32 nodesize) { struct btrfs_root *root; root = btrfs_alloc_root(NULL, GFP_KERNEL); if (!root) return ERR_PTR(-ENOMEM); - __setup_root(4096, 4096, 4096, root, NULL, 1); + /* We don't use the stripesize in selftest, set it as sectorsize */ + __setup_root(nodesize, sectorsize, sectorsize, root, NULL, + BTRFS_ROOT_TREE_OBJECTID); set_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state); root->alloc_bytenr = 0; @@ -3022,7 +3025,7 @@ retry_root_backup: } /* - * Mount does not set all options immediatelly, we can do it now and do + * Mount does not set all options immediately, we can do it now and do * not have to wait for transaction commit */ btrfs_apply_pending_changes(fs_info); @@ -3255,7 +3258,7 @@ static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate) btrfs_warn_rl_in_rcu(device->dev_root->fs_info, "lost page write due to IO error on %s", rcu_str_deref(device->name)); - /* note, we dont' set_buffer_write_io_error because we have + /* note, we don't set_buffer_write_io_error because we have * our own ways of dealing with the IO errors */ clear_buffer_uptodate(bh); @@ -4130,6 +4133,17 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info, * Hint to catch really bogus numbers, bitflips or so, more exact checks are * done later */ + if (btrfs_super_bytes_used(sb) < 6 * btrfs_super_nodesize(sb)) { + btrfs_err(fs_info, "bytes_used is too small %llu", + btrfs_super_bytes_used(sb)); + ret = -EINVAL; + } + if (!is_power_of_2(btrfs_super_stripesize(sb)) || + btrfs_super_stripesize(sb) != sectorsize) { + btrfs_err(fs_info, "invalid stripesize %u", + btrfs_super_stripesize(sb)); + ret = -EINVAL; + } if (btrfs_super_num_devices(sb) > (1UL << 31)) printk(KERN_WARNING "BTRFS: suspicious number of devices: %llu\n", btrfs_super_num_devices(sb)); @@ -4367,7 +4381,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root, if (ret) break; - clear_extent_bits(dirty_pages, start, end, mark, GFP_NOFS); + clear_extent_bits(dirty_pages, start, end, mark); while (start <= end) { eb = btrfs_find_tree_block(root->fs_info, start); start += root->nodesize; @@ -4402,7 +4416,7 @@ again: if (ret) break; - clear_extent_dirty(unpin, start, end, GFP_NOFS); + clear_extent_dirty(unpin, start, end); btrfs_error_unpin_extent_range(root, start, end); cond_resched(); } |