for-4.16-rc5-tag

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Merge tag 'for-4.16-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "There's an important revert in this pull request that needs to go to
  stable as it causes a corruption on big endian machines.

  The other fix is for FIEMAP incorrectly reporting shared extents
  before a sync and one fix for a crash in raid56.

  So far we got only one report about the BE corruption, the stable
  kernels were out for like a week, so hopefully the scope of the damage
  is low"

* tag 'for-4.16-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Revert "btrfs: use proper endianness accessors for super_copy"
  btrfs: add missing initialization in btrfs_check_shared
  btrfs: Fix NULL pointer exception in find_bio_stripe
This commit is contained in:
Linus Torvalds 2018-03-16 13:37:42 -07:00
commit 8f5fd927c3
4 changed files with 15 additions and 15 deletions

View File

@ -1519,6 +1519,7 @@ int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr)
if (!node)
break;
bytenr = node->val;
shared.share_count = 0;
cond_resched();
}

View File

@ -1370,6 +1370,7 @@ static int find_bio_stripe(struct btrfs_raid_bio *rbio,
stripe_start = stripe->physical;
if (physical >= stripe_start &&
physical < stripe_start + rbio->stripe_len &&
stripe->dev->bdev &&
bio->bi_disk == stripe->dev->bdev->bd_disk &&
bio->bi_partno == stripe->dev->bdev->bd_partno) {
return i;

View File

@ -423,7 +423,7 @@ static ssize_t btrfs_nodesize_show(struct kobject *kobj,
{
struct btrfs_fs_info *fs_info = to_fs_info(kobj);
return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->nodesize);
return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->nodesize);
}
BTRFS_ATTR(, nodesize, btrfs_nodesize_show);
@ -433,7 +433,8 @@ static ssize_t btrfs_sectorsize_show(struct kobject *kobj,
{
struct btrfs_fs_info *fs_info = to_fs_info(kobj);
return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->sectorsize);
return snprintf(buf, PAGE_SIZE, "%u\n",
fs_info->super_copy->sectorsize);
}
BTRFS_ATTR(, sectorsize, btrfs_sectorsize_show);
@ -443,7 +444,8 @@ static ssize_t btrfs_clone_alignment_show(struct kobject *kobj,
{
struct btrfs_fs_info *fs_info = to_fs_info(kobj);
return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->sectorsize);
return snprintf(buf, PAGE_SIZE, "%u\n",
fs_info->super_copy->sectorsize);
}
BTRFS_ATTR(, clone_alignment, btrfs_clone_alignment_show);

View File

@ -1722,23 +1722,19 @@ static void update_super_roots(struct btrfs_fs_info *fs_info)
super = fs_info->super_copy;
/* update latest btrfs_super_block::chunk_root refs */
root_item = &fs_info->chunk_root->root_item;
btrfs_set_super_chunk_root(super, root_item->bytenr);
btrfs_set_super_chunk_root_generation(super, root_item->generation);
btrfs_set_super_chunk_root_level(super, root_item->level);
super->chunk_root = root_item->bytenr;
super->chunk_root_generation = root_item->generation;
super->chunk_root_level = root_item->level;
/* update latest btrfs_super_block::root refs */
root_item = &fs_info->tree_root->root_item;
btrfs_set_super_root(super, root_item->bytenr);
btrfs_set_super_generation(super, root_item->generation);
btrfs_set_super_root_level(super, root_item->level);
super->root = root_item->bytenr;
super->generation = root_item->generation;
super->root_level = root_item->level;
if (btrfs_test_opt(fs_info, SPACE_CACHE))
btrfs_set_super_cache_generation(super, root_item->generation);
super->cache_generation = root_item->generation;
if (test_bit(BTRFS_FS_UPDATE_UUID_TREE_GEN, &fs_info->flags))
btrfs_set_super_uuid_tree_generation(super,
root_item->generation);
super->uuid_tree_generation = root_item->generation;
}
int btrfs_transaction_in_commit(struct btrfs_fs_info *info)