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Miklos Szeredi a2bc923629 fuse: fix copy_file_range() in the writeback case

Prior to sending COPY_FILE_RANGE to userspace filesystem, we must flush all
dirty pages in both the source and destination files.

This patch adds the missing flush of the source file.

Tested on libfuse-3.5.0 with:

  libfuse/example/passthrough_ll /mnt/fuse/ -o writeback
  libfuse/test/test_syscalls /mnt/fuse/tmp/test

Fixes: 88bc7d5097 ("fuse: add support for copy_file_range()")
Cc: <stable@vger.kernel.org> # v4.20
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

2019-05-28 13:22:50 +02:00

acl.c

fuse: Support fuse filesystems outside of init_user_ns

2018-03-20 17:11:44 +01:00

control.c

fuse: Convert fusectl to use the new mount API

2019-04-24 17:05:07 +02:00

cuse.c

fuse: convert printk -> pr_*

2019-04-24 17:05:06 +02:00

dev.c

fuse: require /dev/fuse reads to have enough buffer capacity