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| author | Jiri Kosina <jkosina@suse.cz> | 2012-02-06 19:11:09 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-02-06 19:12:16 +0400 |
| commit | d4730ace0c7dbb64513e35b6fc5fd7e7f381e490 (patch) | |
| tree | 18890c096cdd869a593c56de3257faa40af8e050 /mm/swapfile.c | |
| parent | c1c454b8691cc95aa83f19273ed7845914c70e83 (diff) | |
| parent | 23783f817bceedd6d4e549385e3f400ea64059e5 (diff) | |
| download | linux-d4730ace0c7dbb64513e35b6fc5fd7e7f381e490.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into upstream-fixes
Sync with Linus' tree. This is necessary to have a base for
patch that fixes commit 35b4c01e29b ("power_supply: add "powers"
links to self-powered HID devices") which went in through Anton's
tree.
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index b1cd12060723..d999f090dfda 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -667,10 +667,10 @@ int try_to_free_swap(struct page *page) * original page might be freed under memory pressure, then * later read back in from swap, now with the wrong data. * - * Hibernation clears bits from gfp_allowed_mask to prevent - * memory reclaim from writing to disk, so check that here. + * Hibration suspends storage while it is writing the image + * to disk so check that here. */ - if (!(gfp_allowed_mask & __GFP_IO)) + if (pm_suspended_storage()) return 0; delete_from_swap_cache(page); @@ -847,12 +847,13 @@ unsigned int count_swap_pages(int type, int free) static int unuse_pte(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, swp_entry_t entry, struct page *page) { - struct mem_cgroup *ptr; + struct mem_cgroup *memcg; spinlock_t *ptl; pte_t *pte; int ret = 1; - if (mem_cgroup_try_charge_swapin(vma->vm_mm, page, GFP_KERNEL, &ptr)) { + if (mem_cgroup_try_charge_swapin(vma->vm_mm, page, + GFP_KERNEL, &memcg)) { ret = -ENOMEM; goto out_nolock; } @@ -860,7 +861,7 @@ static int unuse_pte(struct vm_area_struct *vma, pmd_t *pmd, pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); if (unlikely(!pte_same(*pte, swp_entry_to_pte(entry)))) { if (ret > 0) - mem_cgroup_cancel_charge_swapin(ptr); + mem_cgroup_cancel_charge_swapin(memcg); ret = 0; goto out; } @@ -871,7 +872,7 @@ static int unuse_pte(struct vm_area_struct *vma, pmd_t *pmd, set_pte_at(vma->vm_mm, addr, pte, pte_mkold(mk_pte(page, vma->vm_page_prot))); page_add_anon_rmap(page, vma, addr); - mem_cgroup_commit_charge_swapin(page, ptr); + mem_cgroup_commit_charge_swapin(page, memcg); swap_free(entry); /* * Move the page to the active list so it is not |