From af431dcb249ffff20b16e08adaa4b624405a046b Mon Sep 17 00:00:00 2001
From: Su Yue <suy.fnst@cn.fujitsu.com>
Date: Fri, 22 Jun 2018 16:18:01 +0800
Subject: [PATCH] btrfs: return EUCLEAN if extent_inline_ref type is invalid
If type of extent_inline_ref found is not expected, filesystem may have
been corrupted, should return EUCLEAN instead of EINVAL.
Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/backref.c | 4 ++--
fs/btrfs/extent-tree.c | 2 +-
fs/btrfs/relocation.c | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 0a8e2e29a66b..60f4afa8ecbc 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -925,7 +925,7 @@ static int add_inline_refs(const struct btrfs_fs_info *fs_info,
type = btrfs_get_extent_inline_ref_type(leaf, iref,
BTRFS_REF_TYPE_ANY);
if (type == BTRFS_REF_TYPE_INVALID)
- return -EINVAL;
+ return -EUCLEAN;
offset = btrfs_extent_inline_ref_offset(leaf, iref);
@@ -1793,7 +1793,7 @@ static int get_extent_inline_ref(unsigned long *ptr,
*out_type = btrfs_get_extent_inline_ref_type(eb, *out_eiref,
BTRFS_REF_TYPE_ANY);
if (*out_type == BTRFS_REF_TYPE_INVALID)
- return -EINVAL;
+ return -EUCLEAN;
*ptr += btrfs_extent_inline_ref_size(*out_type);
WARN_ON(*ptr > end);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 37d8927015d9..b28fa3d20ef7 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1719,7 +1719,7 @@ again:
iref = (struct btrfs_extent_inline_ref *)ptr;
type = btrfs_get_extent_inline_ref_type(leaf, iref, needed);
if (type == BTRFS_REF_TYPE_INVALID) {
- err = -EINVAL;
+ err = -EUCLEAN;
goto out;
}
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 22214033a4a2..44722e939e34 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -792,7 +792,7 @@ again:
type = btrfs_get_extent_inline_ref_type(eb, iref,
BTRFS_REF_TYPE_BLOCK);
if (type == BTRFS_REF_TYPE_INVALID) {
- err = -EINVAL;
+ err = -EUCLEAN;
goto out;
}
key.type = type;
@@ -3801,7 +3801,7 @@ int add_data_references(struct reloc_control *rc,
ret = find_data_references(rc, extent_key,
eb, dref, blocks);
} else {
- ret = -EINVAL;
+ ret = -EUCLEAN;
btrfs_err(rc->extent_root->fs_info,
"extent %llu slot %d has an invalid inline ref type",
eb->start, path->slots[0]);