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-rw-r--r--block/blk.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/block/blk.h b/block/blk.h
index 90fa5f28ccab..9cf9a0099416 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -14,6 +14,7 @@
struct elevator_type;
#define BLK_DEV_MAX_SECTORS (LLONG_MAX >> 9)
+#define BLK_MIN_SEGMENT_SIZE 4096
/* Max future timer expiry for timeouts */
#define BLK_MAX_TIMEOUT (5 * HZ)
@@ -358,8 +359,12 @@ struct bio *bio_split_zone_append(struct bio *bio,
static inline bool bio_may_need_split(struct bio *bio,
const struct queue_limits *lim)
{
- return lim->chunk_sectors || bio->bi_vcnt != 1 ||
- bio->bi_io_vec->bv_len + bio->bi_io_vec->bv_offset > PAGE_SIZE;
+ if (lim->chunk_sectors)
+ return true;
+ if (bio->bi_vcnt != 1)
+ return true;
+ return bio->bi_io_vec->bv_len + bio->bi_io_vec->bv_offset >
+ lim->min_segment_size;
}
/**