On 1/28/24 08:58, Christoph Hellwig wrote:
+static void blk_apply_bdi_limits(struct backing_dev_info *bdi,
+ struct queue_limits *lim)
+{
+ /*
+ * For read-ahead of large files to be effective, we need to read ahead
+ * at least twice the optimal I/O size.
+ */
+ bdi->ra_pages = max(lim->io_opt * 2 / PAGE_SIZE, VM_READAHEAD_PAGES);
+ bdi->io_pages = lim->max_sectors >> (PAGE_SHIFT - 9);
+}
Would this be a good opportunity to change (PAGE_SHIFT - 9) into PAGE_SECTORS_SHIFT? Thanks, Bart.
