While reading trough filemap_nopage() I found the 'return NULL'
statements a bit confusing since we already have two constants defined
for ->nopage error conditions. Since a NULL return value really means
NOPAGE_SIGBUS, just return that to make the code more readable.
Signed-off-by: Adam Litke <[email protected]>
filemap.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -upN reference/mm/filemap.c current/mm/filemap.c
--- reference/mm/filemap.c
+++ current/mm/filemap.c
@@ -1454,7 +1454,7 @@ outside_data_content:
* accessible..
*/
if (area->vm_mm == current->mm)
- return NULL;
+ return NOPAGE_SIGBUS;
/* Fall through to the non-read-ahead case */
no_cached_page:
/*
@@ -1479,7 +1479,7 @@ no_cached_page:
*/
if (error == -ENOMEM)
return NOPAGE_OOM;
- return NULL;
+ return NOPAGE_SIGBUS;
page_not_uptodate:
if (!did_readaround) {
@@ -1548,7 +1548,7 @@ page_not_uptodate:
*/
shrink_readahead_size_eio(file, ra);
page_cache_release(page);
- return NULL;
+ return NOPAGE_SIGBUS;
}
EXPORT_SYMBOL(filemap_nopage);
--
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center
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