Subject: [folded-merged] mm-per-thread-vma-caching-fix-6-fix.patch removed from -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,davidlohr@xxxxxx,hughd@xxxxxxxxxx,oleg@xxxxxxxxxx,riel@xxxxxxxxxx,torvalds@xxxxxxxxxxxxxxxxxxxx,walken@xxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 07 Apr 2014 15:04:48 -0700
The patch titled
Subject: mm-per-thread-vma-caching-fix-6-fix
has been removed from the -mm tree. Its filename was
mm-per-thread-vma-caching-fix-6-fix.patch
This patch was dropped because it was folded into mm-per-thread-vma-caching.patch
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-per-thread-vma-caching-fix-6-fix
adjust and enhance comments
Cc: Davidlohr Bueso <davidlohr@xxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Michel Lespinasse <walken@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmacache.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff -puN mm/vmacache.c~mm-per-thread-vma-caching-fix-6-fix mm/vmacache.c
--- a/mm/vmacache.c~mm-per-thread-vma-caching-fix-6-fix
+++ a/mm/vmacache.c
@@ -31,6 +31,15 @@ void vmacache_flush_all(struct mm_struct
rcu_read_unlock();
}
+/*
+ * This task may be accessing a foreign mm via (for example)
+ * get_user_pages()->find_vma(). The vmacache is task-local and this
+ * task's vmacache pertains to a different mm (ie, its own). There is
+ * nothing we can do here.
+ *
+ * Also handle the case where a kernel thread has adopted this mm via use_mm().
+ * That kernel thread's vmacache is not applicable to this mm.
+ */
static bool vmacache_valid_mm(struct mm_struct *mm)
{
return current->mm == mm && !(current->flags & PF_KTHREAD);
@@ -46,12 +55,6 @@ static bool vmacache_valid(struct mm_str
{
struct task_struct *curr;
- /*
- * This task may be accessing a foreign mm via (for example)
- * get_user_pages()->find_vma(). The vmacache is task-local and this
- * task's vmacache pertains to a different mm (ie, its own). There is
- * nothing we can do here.
- */
if (!vmacache_valid_mm(mm))
return false;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
mmnuma-reorganize-change_pmd_range.patch
drivers-lguest-page_tablesc-rename-do_set_pte.patch
mm-add-debugfs-tunable-for-fault_around_order.patch
mm-per-thread-vma-caching.patch
mm-use-macros-from-compilerh-instead-of-__attribute__-fix.patch
mm-vmallocc-enhance-vm_map_ram-comment-fix.patch
mm-readaheadc-inline-ra_submit.patch
zram-use-zcomp-compressing-backends-fix.patch
zram-return-error-valued-pointer-from-zcomp_create-fix.patch
zram-return-error-valued-pointer-from-zcomp_create-fix-2.patch
zram-propagate-error-to-user-fix.patch
zram-support-req_discard-v4-fix.patch
include-linux-crash_dumph-add-vmcore_cleanup-prototype-fix.patch
kernel-panicc-display-reason-at-end-pr_emerg-fix.patch
fault-injection-set-bounds-on-what-proc-self-make-it-fail-accepts-fix.patch
initramfs-debug-detected-compression-method-fix.patch
slub-use-raw_cpu_inc-for-incrementing-statistics-fix.patch
vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix.patch
percpu-add-preemption-checks-to-__this_cpu-ops-fix-checkpatch-fixes.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
