ovl: copy up regular file using O_TMPFILE

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In preparation for concurrent copy up, implement copy up
of regular file as O_TMPFILE that is linked to upperdir
instead of a file in workdir that is moved to upperdir.

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Amir Goldstein 2017-01-17 06:34:55 +02:00 • committed by Miklos Szeredi

parent 42f269b925

commit d8514d8edb

1 changed files with 20 additions and 7 deletions

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27

fs/overlayfs/copy_up.c

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