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linux/fs/fat
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Hou Tao 67ceb1eca0 fat: enable .splice_write to support splice on O_DIRECT file 
Now splice() on O_DIRECT-opened fat file will return -EFAULT, that is
because the default .splice_write, namely default_file_splice_write(),
will construct an ITER_KVEC iov_iter and dio_refill_pages() in dio path
can not handle it.

Fix it by implementing .splice_write through iter_file_splice_write().

Spotted by xfs-tests generic/091.

Link: http://lkml.kernel.org/r/20190210094754.56355-1-houtao1@huawei.com
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-07 18:32:01 -08:00
..
cache.c fat: new inline functions to determine the FAT variant (32, 16 or 12) 2019-01-04 13:13:47 -08:00
dir.c Merge branch 'akpm' (patches from Andrew) 2019-01-05 09:16:18 -08:00
fat.h fat: new inline functions to determine the FAT variant (32, 16 or 12) 2019-01-04 13:13:47 -08:00
fatent.c fat: new inline functions to determine the FAT variant (32, 16 or 12) 2019-01-04 13:13:47 -08:00
file.c fat: enable .splice_write to support splice on O_DIRECT file 2019-03-07 18:32:01 -08:00
inode.c fat: new inline functions to determine the FAT variant (32, 16 or 12) 2019-01-04 13:13:47 -08:00
Kconfig fat: add config option to set UTF-8 mount option by default 2016-03-22 15:36:02 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
misc.c fat: new inline functions to determine the FAT variant (32, 16 or 12) 2019-01-04 13:13:47 -08:00
namei_msdos.c fat: change timestamp updates to use fat_truncate_time 2018-10-31 08:54:14 -07:00
namei_vfat.c fat: change timestamp updates to use fat_truncate_time 2018-10-31 08:54:14 -07:00
nfs.c