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From: Ammar Faizi <ammarfaizi2@gnuweeb.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>,
	Pavel Begunkov <asml.silence@gmail.com>,
	Gilang Fachrezy <gilang4321@gmail.com>,
	VNLX Kernel Department <kernel@vnlx.org>,
	Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>,
	GNU/Weeb Mailing List <gwml@vger.gnuweeb.org>,
	io-uring Mailing List <io-uring@vger.kernel.org>
Subject: [PATCH liburing v1 0/2] liburing micro-optimzation
Date: Fri,  6 Jan 2023 22:42:57 +0700
Message-Id: <20230106154259.556542-1-ammar.faizi@intel.com>
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From: Ammar Faizi <ammarfaizi2@gnuweeb.org>

Hi Jens,

This series contains liburing micro-optimzation. There are two patches
in this series:

## Patch 1
- Fix bloated memset due to unexpected vectorization.
  Clang and GCC generate an insane vectorized memset() in nolibc.c.
  liburing doesn't need such a powerful memset(). Add an empty inline ASM
  to prevent the compilers from over-optimizing the memset().

## Patch 2
- Simplify `io_uring_register_file_alloc_range()` function.
  Use a struct initializer instead of memset(). It simplifies the C code
  plus effectively reduces the code size.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
---
Ammar Faizi (2):
  nolibc: Fix bloated memset due to unexpected vectorization
  register: Simplify `io_uring_register_file_alloc_range()` function

 src/nolibc.c   | 9 ++++++++-
 src/register.c | 9 ++++-----
 2 files changed, 12 insertions(+), 6 deletions(-)


base-commit: c76d392035fd271980faa297334268f2cd77d774
-- 
Ammar Faizi