Commit 89a77271 authored by Jens Axboe's avatar Jens Axboe Committed by Greg Kroah-Hartman
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io_uring: io_kiocb_update_pos() should not touch file for non -1 offset 



commit 6f83ab22 upstream.

-1 tells use to use the current position, but we check if the file is
a stream regardless of that. Fix up io_kiocb_update_pos() to only
dip into file if we need to. This is both more efficient and also drops
12 bytes of text on aarch64 and 64 bytes on x86-64.

Fixes: b4aec400 ("io_uring: do not recalculate ppos unnecessarily")
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c6e3c12f
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