diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/file-item.c | 13 | ||||
| -rw-r--r-- | fs/btrfs/space-info.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/verity.c | 6 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 13 |
4 files changed, 32 insertions, 5 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 2673c6ba7a4e..0b9401a5afd3 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -665,7 +665,18 @@ blk_status_t btrfs_csum_one_bio(struct btrfs_inode *inode, struct bio *bio, if (!ordered) { ordered = btrfs_lookup_ordered_extent(inode, offset); - BUG_ON(!ordered); /* Logic error */ + /* + * The bio range is not covered by any ordered extent, + * must be a code logic error. + */ + if (unlikely(!ordered)) { + WARN(1, KERN_WARNING + "no ordered extent for root %llu ino %llu offset %llu\n", + inode->root->root_key.objectid, + btrfs_ino(inode), offset); + kvfree(sums); + return BLK_STS_IOERR; + } } nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index 5ada02e0e629..aa5be0b24987 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -414,9 +414,10 @@ static void __btrfs_dump_space_info(struct btrfs_fs_info *fs_info, { lockdep_assert_held(&info->lock); - btrfs_info(fs_info, "space_info %llu has %llu free, is %sfull", + /* The free space could be negative in case of overcommit */ + btrfs_info(fs_info, "space_info %llu has %lld free, is %sfull", info->flags, - info->total_bytes - btrfs_space_info_used(info, true), + (s64)(info->total_bytes - btrfs_space_info_used(info, true)), info->full ? "" : "not "); btrfs_info(fs_info, "space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu zone_unusable=%llu", diff --git a/fs/btrfs/verity.c b/fs/btrfs/verity.c index 28d443d3ef93..4968535dfff0 100644 --- a/fs/btrfs/verity.c +++ b/fs/btrfs/verity.c @@ -451,7 +451,7 @@ static int del_orphan(struct btrfs_trans_handle *trans, struct btrfs_inode *inod */ static int rollback_verity(struct btrfs_inode *inode) { - struct btrfs_trans_handle *trans; + struct btrfs_trans_handle *trans = NULL; struct btrfs_root *root = inode->root; int ret; @@ -473,6 +473,7 @@ static int rollback_verity(struct btrfs_inode *inode) trans = btrfs_start_transaction(root, 2); if (IS_ERR(trans)) { ret = PTR_ERR(trans); + trans = NULL; btrfs_handle_fs_error(root->fs_info, ret, "failed to start transaction in verity rollback %llu", (u64)inode->vfs_inode.i_ino); @@ -490,8 +491,9 @@ static int rollback_verity(struct btrfs_inode *inode) btrfs_abort_transaction(trans, ret); goto out; } - btrfs_end_transaction(trans); out: + if (trans) + btrfs_end_transaction(trans); return ret; } diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 464485aa7318..2ec3b8ac8fa3 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1137,6 +1137,19 @@ static void btrfs_close_one_device(struct btrfs_device *device) atomic_set(&device->dev_stats_ccnt, 0); extent_io_tree_release(&device->alloc_state); + /* + * Reset the flush error record. We might have a transient flush error + * in this mount, and if so we aborted the current transaction and set + * the fs to an error state, guaranteeing no super blocks can be further + * committed. However that error might be transient and if we unmount the + * filesystem and mount it again, we should allow the mount to succeed + * (btrfs_check_rw_degradable() should not fail) - if after mounting the + * filesystem again we still get flush errors, then we will again abort + * any transaction and set the error state, guaranteeing no commits of + * unsafe super blocks. + */ + device->last_flush_error = 0; + /* Verify the device is back in a pristine state */ ASSERT(!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state)); ASSERT(!test_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state)); |