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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-09 19:18:33 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-09 19:18:33 +0000 |
| commit | 0a3a98f6dd4e8f4d928a09302c0d1c56f2192ac3 (patch) | |
| tree | 92f55e374a84d06ce8213a4540454760fdecf137 /mm/rmap.c | |
| parent | 8ef12c9f01afba47c2d33bb939085111ca0d0f7d (diff) | |
| parent | 5367f2d67c7d0bf1faae90e6e7b4e2ac3c9b5e0f (diff) | |
Merge Linus' tree.
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 6f3f7db2712..66ec43053a4 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -514,6 +514,13 @@ void page_add_file_rmap(struct page *page) void page_remove_rmap(struct page *page) { if (atomic_add_negative(-1, &page->_mapcount)) { + if (page_mapcount(page) < 0) { + printk (KERN_EMERG "Eeek! page_mapcount(page) went negative! (%d)\n", page_mapcount(page)); + printk (KERN_EMERG " page->flags = %lx\n", page->flags); + printk (KERN_EMERG " page->count = %x\n", page_count(page)); + printk (KERN_EMERG " page->mapping = %p\n", page->mapping); + } + BUG_ON(page_mapcount(page) < 0); /* * It would be tidy to reset the PageAnon mapping here, |