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authorIngo Molnar <mingo@kernel.org>2013-12-17 15:27:08 +0100
committerIngo Molnar <mingo@kernel.org>2013-12-17 15:27:08 +0100
commitbb799d3b980eb803ca2da4a4eefbd9308f8d988a (patch)
tree69fbe0cd6d47b23a50f5e1d87bf7489532fae149 /Documentation/vm/split_page_table_lock
parentpowerpc: Full barrier for smp_mb__after_unlock_lock() (diff)
parentLinux 3.13-rc4 (diff)
downloadlinux-bb799d3b980eb803ca2da4a4eefbd9308f8d988a.tar.gz
linux-bb799d3b980eb803ca2da4a4eefbd9308f8d988a.zip
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_lock6
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.
PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table
allocation and pgtable_pmd_page_dtor() on freeing.
-Allocation usually happens in pmd_alloc_one(), freeing in pmd_free(), but
-make sure you cover all PMD table allocation / freeing paths: i.e X86_PAE
-preallocate few PMDs on pgd_alloc().
+Allocation usually happens in pmd_alloc_one(), freeing in pmd_free() and
+pmd_free_tlb(), but make sure you cover all PMD table allocation / freeing
+paths: i.e X86_PAE preallocate few PMDs on pgd_alloc().
With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK.