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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-21 16:07:34 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-21 16:07:34 -0700
commit23a376f98c5dcfc392d47e8d1872884ff44e585d (patch)
treedbe476151bbd6530369c40746f2ec2365f7b500a /mm
parent8358f6242dd447a4f694c7bc949bbfc842ca5db1 (diff)
parenta937536b868b8369b98967929045f1df54234323 (diff)
downloadop-kernel-dev-23a376f98c5dcfc392d47e8d1872884ff44e585d.zip
op-kernel-dev-23a376f98c5dcfc392d47e8d1872884ff44e585d.tar.gz
Merge 3.9-rc3 into tty-next
Diffstat (limited to 'mm')
-rw-r--r--mm/Kconfig8
-rw-r--r--mm/fremap.c5
-rw-r--r--mm/memory_hotplug.c2
-rw-r--r--mm/process_vm_access.c8
4 files changed, 10 insertions, 13 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index ae55c1e..3bea74f 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -286,8 +286,12 @@ config NR_QUICK
default "1"
config VIRT_TO_BUS
- def_bool y
- depends on HAVE_VIRT_TO_BUS
+ bool
+ help
+ An architecture should select this if it implements the
+ deprecated interface virt_to_bus(). All new architectures
+ should probably not select this.
+
config MMU_NOTIFIER
bool
diff --git a/mm/fremap.c b/mm/fremap.c
index 0cd4c1148..4723ac8 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -129,7 +129,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
struct vm_area_struct *vma;
int err = -EINVAL;
int has_write_lock = 0;
- vm_flags_t vm_flags;
+ vm_flags_t vm_flags = 0;
if (prot)
return err;
@@ -254,7 +254,8 @@ get_write_lock:
*/
out:
- vm_flags = vma->vm_flags;
+ if (vma)
+ vm_flags = vma->vm_flags;
if (likely(!has_write_lock))
up_read(&mm->mmap_sem);
else
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b81a367b..9597eec 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1801,7 +1801,7 @@ int __ref remove_memory(int nid, u64 start, u64 size)
int retry = 1;
start_pfn = PFN_DOWN(start);
- end_pfn = start_pfn + PFN_DOWN(size);
+ end_pfn = PFN_UP(start + size - 1);
/*
* When CONFIG_MEMCG is on, one memory block may be used by other
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 926b466..fd26d04 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -429,12 +429,6 @@ compat_process_vm_rw(compat_pid_t pid,
if (flags != 0)
return -EINVAL;
- if (!access_ok(VERIFY_READ, lvec, liovcnt * sizeof(*lvec)))
- goto out;
-
- if (!access_ok(VERIFY_READ, rvec, riovcnt * sizeof(*rvec)))
- goto out;
-
if (vm_write)
rc = compat_rw_copy_check_uvector(WRITE, lvec, liovcnt,
UIO_FASTIOV, iovstack_l,
@@ -459,8 +453,6 @@ free_iovecs:
kfree(iov_r);
if (iov_l != iovstack_l)
kfree(iov_l);
-
-out:
return rc;
}
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