[v5,2/7] block: increase stream count for in-kernel use
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Message ID 1556191202-3245-3-git-send-email-joshi.k@samsung.com
State New
Headers show
Series
  • Extend write-hint framework, and add write-hint for Ext4 journal
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Commit Message

kanchan April 25, 2019, 11:19 a.m. UTC
This bumps up stream count to support in-kernel hints.

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
---
 include/linux/blkdev.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch
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diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 317ab30..2826225 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -565,7 +565,9 @@  struct request_queue {
 
 	struct work_struct	release_work;
 
-#define BLK_MAX_WRITE_HINTS	5
+#define BLK_MAX_USER_HINTS     (WRITE_LIFE_KERN_MIN - 2)
+#define BLK_MAX_KERN_HINTS     4
+#define BLK_MAX_WRITE_HINTS    (1 + BLK_MAX_USER_HINTS + BLK_MAX_KERN_HINTS)
 	u64			write_hints[BLK_MAX_WRITE_HINTS];
 };