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| author |   Qu Wenruo <wqu@suse.com> | 2018-08-01 10:37:19 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2018-08-06 13:13:03 +0200 |
| commit | cf90d884b347c50a1e8c1effc4093e497dd68b4b (patch) | |
| tree | b9a7d161c2a7da88764dd3239966f90edacd56a3 /fs/btrfs/volumes.h | |
| parent | btrfs: Verify that every chunk has corresponding block group at mount time (diff) | |
| download | linux-dev-cf90d884b347c50a1e8c1effc4093e497dd68b4b.tar.xz linux-dev-cf90d884b347c50a1e8c1effc4093e497dd68b4b.zip | |
btrfs: Introduce mount time chunk <-> dev extent mapping check
This patch will introduce chunk <-> dev extent mapping check, to protect
us against invalid dev extents or chunks.
Since chunk mapping is the fundamental infrastructure of btrfs, extra
check at mount time could prevent a lot of unexpected behavior (BUG_ON).
Reported-by: Xu Wen <wen.xu@gatech.edu>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200403
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200407
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Su Yue <suy.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/volumes.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 049619176831..23e9285d88de 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -345,6 +345,7 @@ struct map_lookup { u64 stripe_len; int num_stripes; int sub_stripes; + int verified_stripes; /* For mount time dev extent verification */ struct btrfs_bio_stripe stripes[]; }; @@ -556,5 +557,6 @@ bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info, struct btrfs_device *failing_dev); int btrfs_bg_type_to_factor(u64 flags); +int btrfs_verify_dev_extents(struct btrfs_fs_info *fs_info); #endif |