x86/apic/msi: Plug non-maskable MSI affinity race

[mirror_ubuntu-bionic-kernel.git] / include / linux / blktrace_api.h

diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 8804753805ac554f3b0590b19d43f2509a7aea2c..7bb2d8de9f308e367bcda4a5484f67483f8fc8e5 100644 (file)
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -116,7 +116,13 @@ extern void blk_fill_rwbs(char *rwbs, unsigned int op, int bytes);
 
 static inline sector_t blk_rq_trace_sector(struct request *rq)
 {
-       return blk_rq_is_passthrough(rq) ? 0 : blk_rq_pos(rq);
+       /*
+        * Tracing should ignore starting sector for passthrough requests and
+        * requests where starting sector didn't get set.
+        */
+       if (blk_rq_is_passthrough(rq) || blk_rq_pos(rq) == (sector_t)-1)
+               return 0;
+       return blk_rq_pos(rq);
 }
 
 static inline unsigned int blk_rq_trace_nr_sectors(struct request *rq)