From: David Howells <dhowells@redhat.com>
Date: Thu, 16 Mar 2017 16:27:48 +0000 (+0000)
Subject: afs: Don't set PG_error on local EINTR or ENOMEM when filling a page
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=68ae849d7e674b83610bc7fdf74b21621a09b9ac;p=openwrt%2Fstaging%2Fblogic.git

afs: Don't set PG_error on local EINTR or ENOMEM when filling a page

Don't set PG_error on a page if we get local EINTR or ENOMEM when filling a
page for writing.

Signed-off-by: David Howells <dhowells@redhat.com>
---

diff --git a/fs/afs/file.c b/fs/afs/file.c
index b5829443ff69..0d5b8508869b 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -212,7 +212,13 @@ int afs_page_filler(void *data, struct page *page)
 			fscache_uncache_page(vnode->cache, page);
 #endif
 			BUG_ON(PageFsCache(page));
-			goto error;
+
+			if (ret == -EINTR ||
+			    ret == -ENOMEM ||
+			    ret == -ERESTARTSYS ||
+			    ret == -EAGAIN)
+				goto error;
+			goto io_error;
 		}
 
 		SetPageUptodate(page);
@@ -231,10 +237,12 @@ int afs_page_filler(void *data, struct page *page)
 	_leave(" = 0");
 	return 0;
 
+io_error:
+	SetPageError(page);
+	goto error;
 enomem:
 	ret = -ENOMEM;
 error:
-	SetPageError(page);
 	unlock_page(page);
 	_leave(" = %d", ret);
 	return ret;