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authorIngo Molnar <mingo@kernel.org>2016-02-17 10:37:36 +0100
committerIngo Molnar <mingo@kernel.org>2016-02-17 10:37:36 +0100
commit9109dc97b0155e500cdf3bcd91507bc24defefc1 (patch)
tree5d721cbfeb3576dc6969093ab04f17666737b6a4 /include/linux/blkdev.h
parent27f6d22b037b2be6685e0e27cce929779d634119 (diff)
parent059fcd8cd16622da6513804a7a3e826d152c6c96 (diff)
Merge branch 'perf/urgent' into perf/core, to queue up dependent patch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 29189aeace19..4571ef1a12a9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -682,9 +682,12 @@ static inline bool blk_write_same_mergeable(struct bio *a, struct bio *b)
/*
* q->prep_rq_fn return values
*/
-#define BLKPREP_OK 0 /* serve it */
-#define BLKPREP_KILL 1 /* fatal error, kill */
-#define BLKPREP_DEFER 2 /* leave on queue */
+enum {
+ BLKPREP_OK, /* serve it */
+ BLKPREP_KILL, /* fatal error, kill, return -EIO */
+ BLKPREP_DEFER, /* leave on queue */
+ BLKPREP_INVALID, /* invalid command, kill, return -EREMOTEIO */
+};
extern unsigned long blk_max_low_pfn, blk_max_pfn;