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authorAl Viro <viro@zeniv.linux.org.uk>2022-09-16 03:25:47 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-09 13:28:04 +0300
commit5a1909510387ddf6c2bf58836dc844f66e8a9efb (patch)
tree5e0833622f5b6a24bbc916187fa9a6656060b056 /include/linux
parent6d6e144ffbf253a9cda30cc8158762bdd981303f (diff)
downloadlinux-5a1909510387ddf6c2bf58836dc844f66e8a9efb.tar.xz
use less confusing names for iov_iter direction initializers
[ Upstream commit de4eda9de2d957ef2d6a8365a01e26a435e958cb ] READ/WRITE proved to be actively confusing - the meanings are "data destination, as used with read(2)" and "data source, as used with write(2)", but people keep interpreting those as "we read data from it" and "we write data to it", i.e. exactly the wrong way. Call them ITER_DEST and ITER_SOURCE - at least that is harder to misinterpret... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Stable-dep-of: 6dd88fd59da8 ("vhost-scsi: unbreak any layout for response") Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/uio.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 2e3134b14ffd..87fc3d0dda98 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -29,6 +29,9 @@ enum iter_type {
ITER_UBUF,
};
+#define ITER_SOURCE 1 // == WRITE
+#define ITER_DEST 0 // == READ
+
struct iov_iter_state {
size_t iov_offset;
size_t count;