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488e8f6852
In preparation of calling do_splice_direct() without file_start_write() held, create a new helper splice_file_range(), to be called from context of ->copy_file_range() methods instead of do_splice_direct(). Currently, the only difference is that splice_file_range() does not take flags argument and that it asserts that file_start_write() is held, but we factor out a common helper do_splice_direct_actor() that will be used later. Use the new helper from __ceph_copy_file_range(), that was incorrectly passing to do_splice_direct() the copy flags argument as splice flags. The value of copy flags in ceph is always 0, so it is a smenatic bug fix. Move the declaration of both helpers to linux/splice.h. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Link: https://lore.kernel.org/r/20231130141624.3338942-2-amir73il@gmail.com Acked-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>