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| author | Nikolay Borisov <nborisov@suse.com> | 2018-06-26 16:57:36 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-08-06 13:12:41 +0200 |
| commit | ba3c2b196bf59ba8574808fe6f8fd88d0fed7510 (patch) | |
| tree | ab2b0b500783df91dbf434d18617882830b23120 /fs/btrfs/print-tree.c | |
| parent | a79865c680d81220a1355cd13098e75227dc2994 (diff) | |
| download | linux-stable-ba3c2b196bf59ba8574808fe6f8fd88d0fed7510.tar.gz linux-stable-ba3c2b196bf59ba8574808fe6f8fd88d0fed7510.tar.bz2 linux-stable-ba3c2b196bf59ba8574808fe6f8fd88d0fed7510.zip | |
btrfs: Add graceful handling of V0 extents
Following the removal of the v0 handling code let's be courteous and
print an error message when such extents are handled. In the cases
where we have a transaction just abort it, otherwise just call
btrfs_handle_fs_error. Both cases result in the FS being re-mounted RO.
In case the error handling would be too intrusive, leave the BUG_ON in
place, like extent_data_ref_count, other proper handling would catch
that earlier.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/print-tree.c')
| -rw-r--r-- | fs/btrfs/print-tree.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index c0dac9d7ce33..cc945376c244 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -52,8 +52,10 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type) u64 offset; int ref_index = 0; - if (item_size < sizeof(*ei)) - BUG(); + if (item_size < sizeof(*ei)) { + btrfs_print_v0_err(eb->fs_info); + btrfs_handle_fs_error(eb->fs_info, -EINVAL, NULL); + } ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item); flags = btrfs_extent_flags(eb, ei); @@ -256,7 +258,8 @@ void btrfs_print_leaf(struct extent_buffer *l) btrfs_file_extent_ram_bytes(l, fi)); break; case BTRFS_EXTENT_REF_V0_KEY: - BUG(); + btrfs_print_v0_err(fs_info); + btrfs_handle_fs_error(fs_info, -EINVAL, NULL); break; case BTRFS_BLOCK_GROUP_ITEM_KEY: bi = btrfs_item_ptr(l, i, |