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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2014-06-04 16:06:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 16:53:57 -0700 |
| commit | ff9e43eb4f2eb78067d7b783cc893773b3e129b1 (patch) | |
| tree | fa4194211a8a0523d5123507556b1855644a0a01 /mm/huge_memory.c | |
| parent | 38f7ea5a082bbde9e64b7ece389f20e71a9806f4 (diff) | |
| download | linux-ff9e43eb4f2eb78067d7b783cc893773b3e129b1.tar.gz linux-ff9e43eb4f2eb78067d7b783cc893773b3e129b1.tar.xz | |
thp: consolidate assert checks in __split_huge_page()
It doesn't make sense to have two assert checks for each invariant: one
for printing and one for BUG().
Let's trigger BUG() if we print error message.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index d199d2d91946..2434d9059e5c 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1830,10 +1830,11 @@ static void __split_huge_page(struct page *page, * the newly established pmd of the child later during the * walk, to be able to set it as pmd_trans_splitting too. */ - if (mapcount != page_mapcount(page)) + if (mapcount != page_mapcount(page)) { printk(KERN_ERR "mapcount %d page_mapcount %d\n", mapcount, page_mapcount(page)); - BUG_ON(mapcount != page_mapcount(page)); + BUG(); + } __split_huge_page_refcount(page, list); @@ -1844,10 +1845,11 @@ static void __split_huge_page(struct page *page, BUG_ON(is_vma_temporary_stack(vma)); mapcount2 += __split_huge_page_map(page, vma, addr); } - if (mapcount != mapcount2) + if (mapcount != mapcount2) { printk(KERN_ERR "mapcount %d mapcount2 %d page_mapcount %d\n", mapcount, mapcount2, page_mapcount(page)); - BUG_ON(mapcount != mapcount2); + BUG(); + } } /* |