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authorAl Viro <viro@zeniv.linux.org.uk>2022-09-16 02:25:47 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2022-11-25 19:01:55 +0100
commitde4eda9de2d957ef2d6a8365a01e26a435e958cb (patch)
tree49b0d60dedb65af7f0d3e874ee9c661e6b09697b /mm/page_io.c
parentiov_iter: saner checks for attempt to copy to/from iterator (diff)
downloadlinux-de4eda9de2d957ef2d6a8365a01e26a435e958cb.tar.xz
linux-de4eda9de2d957ef2d6a8365a01e26a435e958cb.zip
use less confusing names for iov_iter direction initializers
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>
Diffstat (limited to 'mm/page_io.c')
-rw-r--r--mm/page_io.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_io.c b/mm/page_io.c
index 2af34dd8fa4d..3a5f921b932e 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -376,7 +376,7 @@ void swap_write_unplug(struct swap_iocb *sio)
struct address_space *mapping = sio->iocb.ki_filp->f_mapping;
int ret;
- iov_iter_bvec(&from, WRITE, sio->bvec, sio->pages, sio->len);
+ iov_iter_bvec(&from, ITER_SOURCE, sio->bvec, sio->pages, sio->len);
ret = mapping->a_ops->swap_rw(&sio->iocb, &from);
if (ret != -EIOCBQUEUED)
sio_write_complete(&sio->iocb, ret);
@@ -530,7 +530,7 @@ void __swap_read_unplug(struct swap_iocb *sio)
struct address_space *mapping = sio->iocb.ki_filp->f_mapping;
int ret;
- iov_iter_bvec(&from, READ, sio->bvec, sio->pages, sio->len);
+ iov_iter_bvec(&from, ITER_DEST, sio->bvec, sio->pages, sio->len);
ret = mapping->a_ops->swap_rw(&sio->iocb, &from);
if (ret != -EIOCBQUEUED)
sio_read_complete(&sio->iocb, ret);