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Zhengxu Zhang 6038537c4a exfat: fdatasync flag should be same like generic_write_sync()

[ Upstream commit 2f2d42a17b ]

Test: androbench by default setting, use 64GB sdcard.
 the random write speed:
	without this patch 3.5MB/s
	with this patch 7MB/s

After patch "11a347fb6cef", the random write speed decreased significantly.
the .write_iter() interface had been modified, and check the differences
with generic_file_write_iter(), when calling generic_write_sync() and
exfat_file_write_iter() to call vfs_fsync_range(), the fdatasync flag is
wrong, and make not use the fdatasync mode, and make random write speed
decreased. So use generic_write_sync() instead of vfs_fsync_range().

Fixes: 11a347fb6c ("exfat: change to get file size from DataLength")
Signed-off-by: Zhengxu Zhang <zhengxu.zhang@unisoc.com>
Acked-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-08-15 12:14:02 +02:00

balloc.c

exfat: fix soft lockup in exfat_clear_bitmap

2025-03-13 13:02:08 +01:00

cache.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

dir.c

exfat: fix the infinite loop in exfat_readdir()

2025-01-17 13:40:35 +01:00

exfat_fs.h

exfat: fix soft lockup in exfat_clear_bitmap