splice: remove permission hook from do_splice_direct()
All callers of do_splice_direct() have a call to rw_verify_area() for the entire range that is being copied, e.g. by vfs_copy_file_range() or do_sendfile() before calling do_splice_direct(). The rw_verify_area() check inside do_splice_direct() is redundant and is called after sb_start_write(), so it is not "start-write-safe". Remove this redundant check. This is needed for fanotify "pre content" events. Reviewed-by:Josef Bacik <josef@toxicpanda.com> Signed-off-by:
Amir Goldstein <amir73il@gmail.com> Link: https://lore.kernel.org/r/20231122122715.2561213-3-amir73il@gmail.com Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Christian Brauner <brauner@kernel.org>
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