The patch titled
revoke: break cow fixes
has been added to the -mm tree. Its filename is
revoke-core-code-break-cow-fixes.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: revoke: break cow fixes
From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
As pointed out by Nick Piggin, __revoke_break_cow() only needs to do
down_read() and we must use vma_pages() for get_user_pages().
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/revoke.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff -puN fs/revoke.c~revoke-core-code-break-cow-fixes fs/revoke.c
--- a/fs/revoke.c~revoke-core-code-break-cow-fixes
+++ a/fs/revoke.c
@@ -185,7 +185,7 @@ static int __revoke_break_cow(struct tas
struct vm_area_struct *vma;
int err = 0;
- down_write(&mm->mmap_sem);
+ down_read(&mm->mmap_sem);
for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
int ret;
@@ -196,14 +196,13 @@ static int __revoke_break_cow(struct tas
continue;
ret = get_user_pages(tsk, tsk->mm, vma->vm_start,
- vma->vm_end-vma->vm_start, 1, 1, NULL,
- NULL);
+ vma_pages(vma), 1, 1, NULL, NULL);
if (ret < 0) {
err = ret;
break;
}
}
- up_write(&mm->mmap_sem);
+ up_read(&mm->mmap_sem);
return err;
}
_
Patches currently in -mm which might be from penberg@xxxxxxxxxxxxxx are
slab-introduce-krealloc.patch
slab-introduce-krealloc-fix.patch
unionfs-fix-slab-abuses-with-krealloc.patch
slab-ensure-cache_alloc_refill-terminates.patch
slab-use-num_possible_cpus-in-enable_cpucache.patch
slab-dont-allocate-empty-shared-caches.patch
slab-numa-kmem_cache-diet.patch
module-use-krealloc.patch
slab-use-cpu_lock_.patch
revoke-special-mmap-handling.patch
revoke-special-mmap-handling-vs-fault-vs-invalidate.patch
revoke-core-code.patch
revoke-core-code-misc-fixes.patch
revoke-core-code-fix-shared-mapping-revoke.patch
revoke-core-code-move-magic.patch
revoke-core-code-fs-revokec-cleanups-and-bugfix-for-64bit-systems.patch
revoke-core-code-revoke-no-revoke-for-nommu.patch
revoke-core-code-fix-shared-mapping-revoke-revoke-only-revoke-mappings-for-the-given-inode.patch
revoke-core-code-break-cow-for-private-mappings.patch
revoke-core-code-generic_file_revoke-stub-for-nommu.patch
revoke-core-code-break-cow-fixes.patch
revoke-support-for-ext2-and-ext3.patch
revoke-add-documentation.patch
revoke-wire-up-i386-system-calls.patch
slab-leaks3-default-y.patch
-
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