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

So they are CONFIG_DEBUG_VM-only and more informative.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David S. Miller <davem@davemloft.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jens Axboe <axboe@fb.com>
Cc: Joe Perches <joe@perches.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rik van Riel <riel@redhat.com>
Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
steinar/wifi_calib_4_9_kernel
Andrew Morton 2016-10-07 17:00:52 -07:00 committed by Linus Torvalds
parent a104808e21
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);