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SubjectRe: [PATCHSET v5 0/12] Add support for async buffered reads
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On 5/30/20 12:57 PM, Sedat Dilek wrote:
> Here are the numbers with your patchset:
>
> # cat systemd-analyze-time_5.7.0-rc7-4-amd64-clang_2nd-try.txt
> Startup finished in 7.229s (kernel) + 1min 18.304s (userspace) = 1min 25.534s
> graphical.target reached after 1min 18.286s in userspace

Can you see if this makes a difference?

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index c296463c15eb..ccb895f911b1 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -374,8 +374,7 @@ enum req_flag_bits {
#define REQ_INTEGRITY (1ULL << __REQ_INTEGRITY)
#define REQ_FUA (1ULL << __REQ_FUA)
#define REQ_PREFLUSH (1ULL << __REQ_PREFLUSH)
-#define REQ_RAHEAD \
- ((1ULL << __REQ_RAHEAD) | (1ULL << __REQ_NOWAIT))
+#define REQ_RAHEAD (1ULL << __REQ_RAHEAD)
#define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND)
#define REQ_NOWAIT (1ULL << __REQ_NOWAIT)
#define REQ_CGROUP_PUNT (1ULL << __REQ_CGROUP_PUNT)
--
Jens Axboe

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