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mm/page_io.c: replace some BUG_ON()s with VM_BUG_ON_PAGE()

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So they are CONFIG_DEBUG_VM-only and more informative.

Cc: Al Viro <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Santosh Shilimkar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2016-10-07 17:00:52 -07:00 • committed by Linus Torvalds
commit cc30c5d646
1 changed files with 4 additions and 3 deletions
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7
mm/page_io.c
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@ -264,7 +264,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
int ret;
struct swap_info_struct *sis = page_swap_info(page);
BUG_ON(!PageSwapCache(page));
VM_BUG_ON_PAGE(!PageSwapCache(page), page);
if (sis->flags & SWP_FILE) {
struct kiocb kiocb;
struct file *swap_file = sis->swap_file;
@ -338,7 +338,7 @@ int swap_readpage(struct page *page)
int ret = 0;
struct swap_info_struct *sis = page_swap_info(page);
BUG_ON(!PageSwapCache(page));
VM_BUG_ON_PAGE(!PageSwapCache(page), page);
VM_BUG_ON_PAGE(!PageLocked(page), page);
VM_BUG_ON_PAGE(PageUptodate(page), page);
if (frontswap_load(page) == 0) {
@ -388,7 +388,8 @@ int swap_set_page_dirty(struct page *page)
if (sis->flags & SWP_FILE) {
struct address_space *mapping = sis->swap_file->f_mapping;
BUG_ON(!PageSwapCache(page));
VM_BUG_ON_PAGE(!PageSwapCache(page), page);
return mapping->a_ops->set_page_dirty(page);
} else {
return __set_page_dirty_no_writeback(page);