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| author |   Pekka Enberg <penberg@kernel.org> | 2011-09-19 17:46:07 +0300 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2011-09-19 17:46:07 +0300 |
| commit | d20bbfab01802e195a50435940f7e4aa747c217c (patch) | |
| tree | 82b0007e33c083050a4e60a49dbb2f5477b4c99d /mm/mincore.c | |
| parent | slub: doc: update the slabinfo.c file path (diff) | |
| parent | slub: explicitly document position of inserting slab to partial list (diff) | |
| download | linux-dev-d20bbfab01802e195a50435940f7e4aa747c217c.tar.xz linux-dev-d20bbfab01802e195a50435940f7e4aa747c217c.zip | |
Merge branch 'slab/urgent' into slab/next
Diffstat (limited to 'mm/mincore.c')
| -rw-r--r-- | mm/mincore.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/mincore.c b/mm/mincore.c index a4e6b9d75c76..636a86876ff2 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -69,12 +69,15 @@ static unsigned char mincore_page(struct address_space *mapping, pgoff_t pgoff) * file will not get a swp_entry_t in its pte, but rather it is like * any other file mapping (ie. marked !present and faulted in with * tmpfs's .fault). So swapped out tmpfs mappings are tested here. - * - * However when tmpfs moves the page from pagecache and into swapcache, - * it is still in core, but the find_get_page below won't find it. - * No big deal, but make a note of it. */ page = find_get_page(mapping, pgoff); +#ifdef CONFIG_SWAP + /* shmem/tmpfs may return swap: account for swapcache page too. */ + if (radix_tree_exceptional_entry(page)) { + swp_entry_t swap = radix_to_swp_entry(page); + page = find_get_page(&swapper_space, swap.val); + } +#endif if (page) { present = PageUptodate(page); page_cache_release(page); |