diff options
| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2014-06-04 16:07:45 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-05-24 02:20:24 +0200 |
| commit | ddc077272b19719f8592f8738929017d3742341b (patch) | |
| tree | 82f1c8c1d658017bb8a27d98f5081d132d6d4ae5 /mm/filemap.c | |
| parent | 7e1c81fc6ba03ac924d8b19c52a2b62fd2c9353a (diff) | |
fs/mpage.c: factor page_endio() out of mpage_end_io()
page_endio() takes care of updating all the appropriate page flags once
I/O has finished to a page. Switch to using mapping_set_error() instead
of setting AS_EIO directly; this will handle thin-provisioned devices
correctly.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dheeraj Reddy <dheeraj.reddy@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index f023964e7..977b53167 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -629,6 +629,31 @@ void end_page_writeback(struct page *page) } EXPORT_SYMBOL(end_page_writeback); +/* + * After completing I/O on a page, call this routine to update the page + * flags appropriately + */ +void page_endio(struct page *page, int rw, int err) +{ + if (rw == READ) { + if (!err) { + SetPageUptodate(page); + } else { + ClearPageUptodate(page); + SetPageError(page); + } + unlock_page(page); + } else { /* rw == WRITE */ + if (err) { + SetPageError(page); + if (page->mapping) + mapping_set_error(page->mapping, err); + } + end_page_writeback(page); + } +} +EXPORT_SYMBOL_GPL(page_endio); + /** * __lock_page - get a lock on the page, assuming we need to sleep to get it * @page: the page to lock |