summaryrefslogtreecommitdiff
path: root/include/linux/uio.h
diff options
context:
space:
mode:
authorJens Axboe <axboe@kernel.dk>2023-03-28 14:29:03 -0600
committerJens Axboe <axboe@kernel.dk>2023-03-30 08:12:29 -0600
commitcd0bd57a9de59019fe99e9305a2337a66a4f9d39 (patch)
treed1bea986adafaad51b90b3a8687270719a2bf3bb /include/linux/uio.h
parent6eb203e1a868187cbc23ae3bad443dc929ca6cca (diff)
iov_iter: set nr_segs = 1 for ITER_UBUF
To avoid needing to check if a given user backed iov_iter is of type ITER_IOVEC or ITER_UBUF, set the number of segments for the ITER_UBUF case to 1 as we're carrying a single segment. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/uio.h')
-rw-r--r--include/linux/uio.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 7f585ceedcb2..5dbd2dcab35c 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -355,7 +355,8 @@ static inline void iov_iter_ubuf(struct iov_iter *i, unsigned int direction,
.user_backed = true,
.data_source = direction,
.ubuf = buf,
- .count = count
+ .count = count,
+ .nr_segs = 1
};
}
/* Flags for iov_iter_get/extract_pages*() */