The patch titled
Subject: mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7
has been added to the -mm tree. Its filename is
mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7.patch
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------------------------------------------------------
From: Eric B Munson <emunson@xxxxxxxxxx>
Subject: mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7
Extending the mlock system call is very difficult because it currently
does not take a flags argument. A later patch in this set will extend
mlock to support a middle ground between pages that are locked and
faulted in immediately and unlocked pages. To pave the way for the new
system call, the code needs some reorganization so that all the actual
entry point handles is checking input and translating to VMA flags.
Signed-off-by: Eric B Munson <emunson@xxxxxxxxxx>
Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mlock.c | 1 +
1 file changed, 1 insertion(+)
diff -puN mm/mlock.c~mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7 mm/mlock.c
--- a/mm/mlock.c~mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7
+++ a/mm/mlock.c
@@ -578,6 +578,7 @@ static int apply_vma_lock_flags(unsigned
for (nstart = start ; ; ) {
vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+
newflags |= flags;
/* Here we know that vma->vm_start <= nstart < vma->vm_end. */
_
Patches currently in -mm which might be from emunson@xxxxxxxxxx are
mm-mlock-refactor-mlock-munlock-and-munlockall-code.patch
mm-mlock-refactor-mlock-munlock-and-munlockall-code-v7.patch
mm-mlock-add-new-mlock-system-call.patch
mm-mlock-add-new-mlock-system-call-v7.patch
mm-introduce-vm_lockonfault.patch
mm-introduce-vm_lockonfault-v7.patch
mm-mlock-add-mlock-flags-to-enable-vm_lockonfault-usage.patch
mm-mlock-add-mlock-flags-to-enable-vm_lockonfault-usage-v7.patch
selftests-vm-add-tests-for-lock-on-fault.patch
mips-add-entry-for-new-mlock2-syscall.patch
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