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| author | Zilin Guan <zilin@seu.edu.cn> | 2024-12-13 16:50:06 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-12-21 00:07:56 +0300 |
| commit | f4d3cde410cc62b5483f59f0f3454a5c5203a2cb (patch) | |
| tree | 369f1c8854f42c310fc9821effc030c0c9679369 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | e5a8b6446c0d370716f193771ccacf3260a57534 (diff) | |
| download | linux-f4d3cde410cc62b5483f59f0f3454a5c5203a2cb.tar.xz | |
netfs: Remove redundant use of smp_rmb()
The function netfs_unbuffered_write_iter_locked() in
fs/netfs/direct_write.c contains an unnecessary smp_rmb() call after
wait_on_bit(). Since wait_on_bit() already incorporates a memory barrier
that ensures the flag update is visible before the function returns, the
smp_rmb() provides no additional benefit and incurs unnecessary overhead.
This patch removes the redundant barrier to simplify and optimize the code.
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241207021952.2978530-1-zilin@seu.edu.cn/
Link: https://lore.kernel.org/r/20241213135013.2964079-7-dhowells@redhat.com
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
cc: Akira Yokosawa <akiyks@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions