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| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-09-15 20:25:47 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-11-25 13:01:55 -0500 |
| commit | de4eda9de2d957ef2d6a8365a01e26a435e958cb (patch) | |
| tree | 49b0d60dedb65af7f0d3e874ee9c661e6b09697b /mm | |
| parent | a41dad905e5a388f88435a517de102e9b2c8e43d (diff) | |
| download | linux-de4eda9de2d957ef2d6a8365a01e26a435e958cb.tar.gz | |
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')
| -rw-r--r-- | mm/madvise.c | 2 | ||||
| -rw-r--r-- | mm/page_io.c | 4 | ||||
| -rw-r--r-- | mm/process_vm_access.c | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index c7105ec6d08c00..bc54b806f1a71c 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1459,7 +1459,7 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec, goto out; } - ret = import_iovec(READ, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter); + ret = import_iovec(ITER_DEST, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter); if (ret < 0) goto out; diff --git a/mm/page_io.c b/mm/page_io.c index 2af34dd8fa4db2..3a5f921b932e82 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); diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 4bcc1195808907..78dfaf9e8990af 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -263,7 +263,7 @@ static ssize_t process_vm_rw(pid_t pid, struct iovec *iov_r; struct iov_iter iter; ssize_t rc; - int dir = vm_write ? WRITE : READ; + int dir = vm_write ? ITER_SOURCE : ITER_DEST; if (flags != 0) return -EINVAL; |