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authorLinus Torvalds <torvalds@linux-foundation.org>2013-08-14 10:04:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-08-14 10:04:43 -0700
commitf1d6e17f540af37bb1891480143669ba7636c4cf (patch)
tree962d95f43fe425c9a7d4c7f1316c76000bcec370 /include
parent28fbc8b6a29c849a3f03a6b05010d4b584055665 (diff)
parent8c8296223f3abb142be8fc31711b18a704c0e7d8 (diff)
Merge branch 'akpm' (patches from Andrew Morton)
Merge a bunch of fixes from Andrew Morton. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: fs/proc/task_mmu.c: fix buffer overflow in add_page_map() arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" ocfs2: fix null pointer dereference in ocfs2_dir_foreach_blk_id() x86 get_unmapped_area(): use proper mmap base for bottom-up direction ocfs2: fix NULL pointer dereference in ocfs2_duplicate_clusters_by_page ocfs2: Revert 40bd62e to avoid regression in extended allocation drivers/rtc/rtc-stmp3xxx.c: provide timeout for potentially endless loop polling a HW bit hugetlb: fix lockdep splat caused by pmd sharing aoe: adjust ref of head for compound page tails microblaze: fix clone syscall mm: save soft-dirty bits on file pages mm: save soft-dirty bits on swapped pages memcg: don't initialize kmem-cache destroying work for root caches
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/pgtable.h30
-rw-r--r--include/linux/sched.h1
-rw-r--r--include/linux/swapops.h2
-rw-r--r--include/linux/syscalls.h5
4 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 2f47ade1b56..0807ddf97b0 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -417,6 +417,36 @@ static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
{
return pmd;
}
+
+static inline pte_t pte_swp_mksoft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline int pte_swp_soft_dirty(pte_t pte)
+{
+ return 0;
+}
+
+static inline pte_t pte_swp_clear_soft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline pte_t pte_file_clear_soft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline pte_t pte_file_mksoft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline int pte_file_soft_dirty(pte_t pte)
+{
+ return 0;
+}
#endif
#ifndef __HAVE_PFNMAP_TRACKING
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 078066daffd..e9995eb5985 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -314,6 +314,7 @@ struct nsproxy;
struct user_namespace;
#ifdef CONFIG_MMU
+extern unsigned long mmap_legacy_base(void);
extern void arch_pick_mmap_layout(struct mm_struct *mm);
extern unsigned long
arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index c5fd30d2a41..8d4fa82bfb9 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -67,6 +67,8 @@ static inline swp_entry_t pte_to_swp_entry(pte_t pte)
swp_entry_t arch_entry;
BUG_ON(pte_file(pte));
+ if (pte_swp_soft_dirty(pte))
+ pte = pte_swp_clear_soft_dirty(pte);
arch_entry = __pte_to_swp_entry(pte);
return swp_entry(__swp_type(arch_entry), __swp_offset(arch_entry));
}
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 4147d700a29..84662ecc7b5 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -802,9 +802,14 @@ asmlinkage long sys_vfork(void);
asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, int,
int __user *);
#else
+#ifdef CONFIG_CLONE_BACKWARDS3
+asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
+ int __user *, int);
+#else
asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
int __user *, int);
#endif
+#endif
asmlinkage long sys_execve(const char __user *filename,
const char __user *const __user *argv,