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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2021-04-30 10:26:41 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2021-06-10 11:45:14 -0400 |
| commit | f0b65f39ac505e8f1dcdaa165aa7b8c0bd6fd454 (patch) | |
| tree | 05ad20f84ee097a534132fa9b2df9feae6d4a7d2 /fs/fuse/file.c | |
| parent | [xarray] iov_iter_npages(): just use DIV_ROUND_UP() (diff) | |
| download | linux-dev-f0b65f39ac505e8f1dcdaa165aa7b8c0bd6fd454.tar.xz linux-dev-f0b65f39ac505e8f1dcdaa165aa7b8c0bd6fd454.zip | |
iov_iter: replace iov_iter_copy_from_user_atomic() with iterator-advancing variant
Replacement is called copy_page_from_iter_atomic(); unlike the old primitive the
callers do *not* need to do iov_iter_advance() after it. In case when they end
up consuming less than they'd been given they need to do iov_iter_revert() on
everything they had not consumed. That, however, needs to be done only on slow
paths.
All in-tree callers converted. And that kills the last user of iterate_all_kinds()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fuse/file.c')
| -rw-r--r-- | fs/fuse/file.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 44bd301fa4fb..4722fa31a185 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1171,10 +1171,9 @@ static ssize_t fuse_fill_write_pages(struct fuse_io_args *ia, if (mapping_writably_mapped(mapping)) flush_dcache_page(page); - tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes); + tmp = copy_page_from_iter_atomic(page, offset, bytes, ii); flush_dcache_page(page); - iov_iter_advance(ii, tmp); if (!tmp) { unlock_page(page); put_page(page); |