The patch titled
Subject: mm: introduce check_data_rlimit helper
has been removed from the -mm tree. Its filename was
mm-introduce-check_data_rlimit-helper-v2.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Subject: mm: introduce check_data_rlimit helper
To eliminate code duplication lets introduce check_data_rlimit helper
which we will use in brk() and prctl() syscalls.
Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Andrew Vagin <avagin@xxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Acked-by: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: Vasiliy Kulikov <segoon@xxxxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Julien Tinnes <jln@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff -puN include/linux/mm.h~mm-introduce-check_data_rlimit-helper-v2 include/linux/mm.h
--- a/include/linux/mm.h~mm-introduce-check_data_rlimit-helper-v2
+++ a/include/linux/mm.h
@@ -18,6 +18,7 @@
#include <linux/pfn.h>
#include <linux/bit_spinlock.h>
#include <linux/shrinker.h>
+#include <linux/resource.h>
struct mempolicy;
struct anon_vma;
@@ -1780,6 +1781,20 @@ extern struct vm_area_struct *copy_vma(s
bool *need_rmap_locks);
extern void exit_mmap(struct mm_struct *);
+static inline int check_data_rlimit(unsigned long rlim,
+ unsigned long new,
+ unsigned long start,
+ unsigned long end_data,
+ unsigned long start_data)
+{
+ if (rlim < RLIM_INFINITY) {
+ if (((new - start) + (end_data - start_data)) > rlim)
+ return -ENOSPC;
+ }
+
+ return 0;
+}
+
extern int mm_take_all_locks(struct mm_struct *mm);
extern void mm_drop_all_locks(struct mm_struct *mm);
_
Patches currently in -mm which might be from gorcunov@xxxxxxxxxx are
origin.patch
mm-softdirty-enable-write-notifications-on-vmas-after-vm_softdirty-cleared.patch
mm-softdirty-enable-write-notifications-on-vmas-after-vm_softdirty-cleared-fix.patch
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