Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-22 12:11:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

iov_iter: convert import_single_range() to ITER_UBUF

Browse Source 
Since we're just importing a single vector, we don't have to turn it
into an ITER_IOVEC. Instead turn it into an ITER_UBUF, which is cheaper
to iterate.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2023-03-24 14:35:49 -06:00
parent 747b1f65d3
commit e03ad4ee27
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/iov_iter.c
View File

@ -1870,9 +1870,7 @@ int import_single_range(int rw, void __user *buf, size_t len,
if (unlikely(!access_ok(buf, len)))
return -EFAULT;
iov->iov_base = buf;
iov->iov_len = len;
iov_iter_init(i, rw, iov, 1, len);
iov_iter_ubuf(i, rw, buf, len);
return 0;
}
EXPORT_SYMBOL(import_single_range);