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| author | Jeff Layton <jlayton@redhat.com> | 2017-07-05 15:26:48 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@redhat.com> | 2017-07-05 18:44:22 -0400 |
| commit | 2b69c8280c8b29cdeb78b8e92e20ed35f730d319 (patch) | |
| tree | c45006b6d5b6ac0a5743b164bfa61b06491b4c53 /mm/page-writeback.c | |
| parent | c86daad2c25bfd4a33d48b7691afaa96d9c5ab46 (diff) | |
| download | linux-stable-2b69c8280c8b29cdeb78b8e92e20ed35f730d319.tar.gz linux-stable-2b69c8280c8b29cdeb78b8e92e20ed35f730d319.tar.bz2 linux-stable-2b69c8280c8b29cdeb78b8e92e20ed35f730d319.zip | |
mm: drop "wait" parameter from write_one_page()
The callers all set it to 1.
Also, make it clear that this function will not set any sort of AS_*
error, and that the caller must do so if necessary. No existing caller
uses this on normal files, so none of them need it.
Also, add __must_check here since, in general, the callers need to handle
an error here in some fashion.
Link: http://lkml.kernel.org/r/20170525103303.6524-1-jlayton@redhat.com
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 143c1c25d680..b901fe52b153 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2366,15 +2366,16 @@ int do_writepages(struct address_space *mapping, struct writeback_control *wbc) } /** - * write_one_page - write out a single page and optionally wait on I/O + * write_one_page - write out a single page and wait on I/O * @page: the page to write - * @wait: if true, wait on writeout * * The page must be locked by the caller and will be unlocked upon return. * - * write_one_page() returns a negative error code if I/O failed. + * write_one_page() returns a negative error code if I/O failed. Note that + * the address_space is not marked for error. The caller must do this if + * needed. */ -int write_one_page(struct page *page, int wait) +int write_one_page(struct page *page) { struct address_space *mapping = page->mapping; int ret = 0; @@ -2385,13 +2386,12 @@ int write_one_page(struct page *page, int wait) BUG_ON(!PageLocked(page)); - if (wait) - wait_on_page_writeback(page); + wait_on_page_writeback(page); if (clear_page_dirty_for_io(page)) { get_page(page); ret = mapping->a_ops->writepage(page, &wbc); - if (ret == 0 && wait) { + if (ret == 0) { wait_on_page_writeback(page); if (PageError(page)) ret = -EIO; |