diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-12-17 09:27:08 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-12-17 09:27:08 -0500 |
| commit | bb799d3b980eb803ca2da4a4eefbd9308f8d988a (patch) | |
| tree | 69fbe0cd6d47b23a50f5e1d87bf7489532fae149 /Documentation/vm/split_page_table_lock | |
| parent | 919fc6e34831d1c2b58bfb5ae261dc3facc9b269 (diff) | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
Merge tag 'v3.13-rc4' into core/locking
Merge Linux 3.13-rc4, to refresh this rather old tree with the latest fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/vm/split_page_table_lock')
| -rw-r--r-- | Documentation/vm/split_page_table_lock | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/vm/split_page_table_lock b/Documentation/vm/split_page_table_lock index 7521d367f21d..6dea4fd5c961 100644 --- a/Documentation/vm/split_page_table_lock +++ b/Documentation/vm/split_page_table_lock | |||
| @@ -63,9 +63,9 @@ levels. | |||
| 63 | PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table | 63 | PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table |
| 64 | allocation and pgtable_pmd_page_dtor() on freeing. | 64 | allocation and pgtable_pmd_page_dtor() on freeing. |
| 65 | 65 | ||
| 66 | Allocation usually happens in pmd_alloc_one(), freeing in pmd_free(), but | 66 | Allocation usually happens in pmd_alloc_one(), freeing in pmd_free() and |
| 67 | make sure you cover all PMD table allocation / freeing paths: i.e X86_PAE | 67 | pmd_free_tlb(), but make sure you cover all PMD table allocation / freeing |
| 68 | preallocate few PMDs on pgd_alloc(). | 68 | paths: i.e X86_PAE preallocate few PMDs on pgd_alloc(). |
| 69 | 69 | ||
| 70 | With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK. | 70 | With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK. |
| 71 | 71 | ||