ovl: add splice file read write helper

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Now overlayfs falls back to use default file splice read
and write, which is not compatiple with overlayfs, returning
EFAULT. xfstests generic/591 can reproduce part of this.

Tested this patch with xfstests auto group tests.

Signed-off-by: Murphy Zhou <jencce.kernel@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Murphy Zhou 2020-01-17 20:49:29 +08:00 • committed by Miklos Szeredi

parent 2406a307ac

commit 1a980b8cbf

1 changed files with 47 additions and 0 deletions

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fs/overlayfs/file.c

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