#define DM_MSG_PREFIX "flakey"
#define all_corrupt_bio_flags_match(bio, fc) \
- (((bio)->bi_rw & (fc)->corrupt_bio_flags) == (fc)->corrupt_bio_flags)
+ (((bio)->bi_opf & (fc)->corrupt_bio_flags) == (fc)->corrupt_bio_flags)
/*
* Flakey: Used for testing only, simulates intermittent,
data[fc->corrupt_bio_byte - 1] = fc->corrupt_bio_value;
DMDEBUG("Corrupting data bio=%p by writing %u to byte %u "
- "(rw=%c bi_rw=%u bi_sector=%llu cur_bytes=%u)\n",
+ "(rw=%c bi_opf=%u bi_sector=%llu cur_bytes=%u)\n",
bio, fc->corrupt_bio_value, fc->corrupt_bio_byte,
- (bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_rw,
+ (bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_opf,
(unsigned long long)bio->bi_iter.bi_sector, bio_bytes);
}
}
pb->bio_submitted = true;
/*
- * Map reads as normal.
+ * Map reads as normal only if corrupt_bio_byte set.
*/
- if (bio_data_dir(bio) == READ)
- goto map_bio;
+ if (bio_data_dir(bio) == READ) {
+ /* If flags were specified, only corrupt those that match. */
+ if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) &&
+ all_corrupt_bio_flags_match(bio, fc))
+ goto map_bio;
+ else
+ return -EIO;
+ }
/*
* Drop writes?
/*
* Corrupt successful READs while in down state.
- * If flags were specified, only corrupt those that match.
*/
- if (fc->corrupt_bio_byte && !error && pb->bio_submitted &&
- (bio_data_dir(bio) == READ) && (fc->corrupt_bio_rw == READ) &&
- all_corrupt_bio_flags_match(bio, fc))
- corrupt_bio_data(bio, fc);
+ if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {
+ if (fc->corrupt_bio_byte)
+ corrupt_bio_data(bio, fc);
+ else
+ return -EIO;
+ }
return error;
}