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btrfs-progs: handle internal errors in btrfs_assert_feature_buf_size() 

The buffer size check is needed and has already caught problems when
adding the raid-stripe-tree, do a better error reporting.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2024-03-15 00:23:29 +01:00
parent dbc7d6aa19
commit 949eb7599b
1 changed files with 11 additions and 2 deletions
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13
common/fsfeatures.c
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@ -312,12 +312,21 @@ void btrfs_assert_feature_buf_size(void)
for (i = 0; i < ARRAY_SIZE(mkfs_features); i++) for (i = 0; i < ARRAY_SIZE(mkfs_features); i++)
/* The extra 2 bytes are for the ", " prefix. */ /* The extra 2 bytes are for the ", " prefix. */
total_size += strlen(mkfs_features[i].name) + 2; total_size += strlen(mkfs_features[i].name) + 2;
BUG_ON(BTRFS_FEATURE_STRING_BUF_SIZE < total_size);
if (BTRFS_FEATURE_STRING_BUF_SIZE < total_size) {
internal_error("string buffer for freature list too small: want %d\n",
total_size);
abort();
}
total_size = 0; total_size = 0;
for (i = 0; i < ARRAY_SIZE(runtime_features); i++) for (i = 0; i < ARRAY_SIZE(runtime_features); i++)
total_size += strlen(runtime_features[i].name) + 2; total_size += strlen(runtime_features[i].name) + 2;
BUG_ON(BTRFS_FEATURE_STRING_BUF_SIZE < total_size); if (BTRFS_FEATURE_STRING_BUF_SIZE < total_size) {
internal_error("string buffer for freature list too small: want %d\n",
total_size);
abort();
}
} }
static size_t get_feature_array_size(enum feature_source source) static size_t get_feature_array_size(enum feature_source source)