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author | John W. Linville <linville@tuxdriver.com> | 2012-02-16 01:24:37 +0400 |
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committer | John W. Linville <linville@tuxdriver.com> | 2012-02-16 01:24:37 +0400 |
commit | ca994a36f585432458ead9133fcfe05440edbb7b (patch) | |
tree | be05512153a9cd5cbe1f1234bc09fd9cd388ec58 /mm/memory.c | |
parent | 12325280dfeba18164f9c47e226a40ab34e23ee7 (diff) | |
parent | 2504a6423b9ab4c36df78227055995644de19edb (diff) | |
download | linux-ca994a36f585432458ead9133fcfe05440edbb7b.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
net/mac80211/debugfs_sta.c
net/mac80211/sta_info.h
Diffstat (limited to 'mm/memory.c')
-rw-r--r-- | mm/memory.c | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/mm/memory.c b/mm/memory.c index 5e30583c2605..fa2f04e0337c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -878,15 +878,24 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm, } if (likely(!non_swap_entry(entry))) rss[MM_SWAPENTS]++; - else if (is_write_migration_entry(entry) && - is_cow_mapping(vm_flags)) { - /* - * COW mappings require pages in both parent - * and child to be set to read. - */ - make_migration_entry_read(&entry); - pte = swp_entry_to_pte(entry); - set_pte_at(src_mm, addr, src_pte, pte); + else if (is_migration_entry(entry)) { + page = migration_entry_to_page(entry); + + if (PageAnon(page)) + rss[MM_ANONPAGES]++; + else + rss[MM_FILEPAGES]++; + + if (is_write_migration_entry(entry) && + is_cow_mapping(vm_flags)) { + /* + * COW mappings require pages in both + * parent and child to be set to read. + */ + make_migration_entry_read(&entry); + pte = swp_entry_to_pte(entry); + set_pte_at(src_mm, addr, src_pte, pte); + } } } goto out_set_pte; @@ -1191,6 +1200,16 @@ again: if (!non_swap_entry(entry)) rss[MM_SWAPENTS]--; + else if (is_migration_entry(entry)) { + struct page *page; + + page = migration_entry_to_page(entry); + + if (PageAnon(page)) + rss[MM_ANONPAGES]--; + else + rss[MM_FILEPAGES]--; + } if (unlikely(!free_swap_and_cache(entry))) print_bad_pte(vma, addr, ptent, NULL); } |