Merge tag 'v4.7-rc2' into v4l_for_linus

Linux 4.7-rc2

* tag 'v4.7-rc2': (10914 commits)
  Linux 4.7-rc2
  devpts: Make each mount of devpts an independent filesystem.
  parisc: Move die_if_kernel() prototype into traps.h header
  parisc: Fix pagefault crash in unaligned __get_user() call
  parisc: Fix printk time during boot
  parisc: Fix backtrace on PA-RISC
  mm, page_alloc: recalculate the preferred zoneref if the context can ignore memory policies
  mm, page_alloc: reset zonelist iterator after resetting fair zone allocation policy
  mm, oom_reaper: do not use siglock in try_oom_reaper()
  mm, page_alloc: prevent infinite loop in buffered_rmqueue()
  checkpatch: reduce git commit description style false positives
  mm/z3fold.c: avoid modifying HEADLESS page and minor cleanup
  memcg: add RCU locking around css_for_each_descendant_pre() in memcg_offline_kmem()
  mm: check the return value of lookup_page_ext for all call sites
  kdump: fix dmesg gdbmacro to work with record based printk
  mm: fix overflow in vm_map_ram()
  Btrfs: deal with duplciates during extent_map insertion in btrfs_get_extent
  arm64: fix alignment when RANDOMIZE_TEXT_OFFSET is enabled
  arm64: move {PAGE,CONT}_SHIFT into Kconfig
  arm64: mm: dump: log span level
  ...

1 files changed, 30 insertions, 2 deletions

diff --git a/scripts/gdb/linux/utils.py b/scripts/gdb/linux/utils.py
index 0893b326a28b..50805874cfc3 100644
--- a/scripts/gdb/linux/utils.py
+++ b/scripts/gdb/linux/utils.py
@@ -87,11 +87,24 @@ def get_target_endianness():
     return target_endianness
 
 
+def read_memoryview(inf, start, length):
+    return memoryview(inf.read_memory(start, length))
+
+
 def read_u16(buffer):
+    value = [0, 0]
+
+    if type(buffer[0]) is str:
+        value[0] = ord(buffer[0])
+        value[1] = ord(buffer[1])
+    else:
+        value[0] = buffer[0]
+        value[1] = buffer[1]
+
     if get_target_endianness() == LITTLE_ENDIAN:
-        return ord(buffer[0]) + (ord(buffer[1]) << 8)
+        return value[0] + (value[1] << 8)
     else:
-        return ord(buffer[1]) + (ord(buffer[0]) << 8)
+        return value[1] + (value[0] << 8)
 
 
 def read_u32(buffer):
@@ -154,3 +167,18 @@ def get_gdbserver_type():
         if gdbserver_type is not None and hasattr(gdb, 'events'):
             gdb.events.exited.connect(exit_handler)
     return gdbserver_type
+
+
+def gdb_eval_or_none(expresssion):
+    try:
+        return gdb.parse_and_eval(expresssion)
+    except:
+        return None
+
+
+def dentry_name(d):
+    parent = d['d_parent']
+    if parent == d or parent == 0:
+        return ""
+    p = dentry_name(d['d_parent']) + "/"
+    return p + d['d_iname'].string()