Merge tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - In the series "treewide: Refactor heap related implementation",
   Kuan-Wei Chiu has significantly reworked the min_heap library code
   and has taught bcachefs to use the new more generic implementation.

 - Yury Norov's series "Cleanup cpumask.h inclusion in core headers"
   reworks the cpumask and nodemask headers to make things generally
   more rational.

 - Kuan-Wei Chiu has sent along some maintenance work against our
   sorting library code in the series "lib/sort: Optimizations and
   cleanups".

 - More library maintainance work from Christophe Jaillet in the series
   "Remove usage of the deprecated ida_simple_xx() API".

 - Ryusuke Konishi continues with the nilfs2 fixes and clanups in the
   series "nilfs2: eliminate the call to inode_attach_wb()".

 - Kuan-Ying Lee has some fixes to the gdb scripts in the series "Fix
   GDB command error".

 - Plus the usual shower of singleton patches all over the place. Please
   see the relevant changelogs for details.

* tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (98 commits)
  ia64: scrub ia64 from poison.h
  watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
  tsacct: replace strncpy() with strscpy()
  lib/bch.c: use swap() to improve code
  test_bpf: convert comma to semicolon
  init/modpost: conditionally check section mismatch to __meminit*
  init: remove unused __MEMINIT* macros
  nilfs2: Constify struct kobj_type
  nilfs2: avoid undefined behavior in nilfs_cnt32_ge macro
  math: rational: add missing MODULE_DESCRIPTION() macro
  lib/zlib: add missing MODULE_DESCRIPTION() macro
  fs: ufs: add MODULE_DESCRIPTION()
  lib/rbtree.c: fix the example typo
  ocfs2: add bounds checking to ocfs2_check_dir_entry()
  fs: add kernel-doc comments to ocfs2_prepare_orphan_dir()
  coredump: simplify zap_process()
  selftests/fpu: add missing MODULE_DESCRIPTION() macro
  compiler.h: simplify data_race() macro
  build-id: require program headers to be right after ELF header
  resource: add missing MODULE_DESCRIPTION()
  ...

scripts/gdb/linux/mm.py

@@ -33,7 +33,7 @@ class aarch64_page_ops():
     def __init__(self):
         self.SUBSECTION_SHIFT = 21
         self.SEBSECTION_SIZE = 1 << self.SUBSECTION_SHIFT
-        self.MODULES_VSIZE = 128 * 1024 * 1024
+        self.MODULES_VSIZE = 2 * 1024 * 1024 * 1024
 
         if constants.LX_CONFIG_ARM64_64K_PAGES:
             self.SECTION_SIZE_BITS = 29
@@ -47,8 +47,13 @@ class aarch64_page_ops():
 
         self.VA_BITS = constants.LX_CONFIG_ARM64_VA_BITS
         if self.VA_BITS > 48:
-            self.VA_BITS_MIN = 48
-            self.vabits_actual = gdb.parse_and_eval('vabits_actual')
+            if constants.LX_CONFIG_ARM64_16K_PAGES:
+                self.VA_BITS_MIN = 47
+            else:
+                self.VA_BITS_MIN = 48
+            tcr_el1 = gdb.execute("info registers $TCR_EL1", to_string=True)
+            tcr_el1 = int(tcr_el1.split()[1], 16)
+            self.vabits_actual = 64 - ((tcr_el1 >> 16) & 63)
         else:
             self.VA_BITS_MIN = self.VA_BITS
             self.vabits_actual = self.VA_BITS
@@ -59,9 +64,9 @@ class aarch64_page_ops():
         if str(constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER).isdigit():
             self.MAX_ORDER = constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER
         else:
-            self.MAX_ORDER = 11
+            self.MAX_ORDER = 10
 
-        self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_ORDER - 1)
+        self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_ORDER)
         self.PFN_SECTION_SHIFT = self.SECTION_SIZE_BITS - self.PAGE_SHIFT
         self.NR_MEM_SECTIONS = 1 << self.SECTIONS_SHIFT
         self.PAGES_PER_SECTION = 1 << self.PFN_SECTION_SHIFT
@@ -89,10 +94,10 @@ class aarch64_page_ops():
         self.MODULES_VADDR = self._PAGE_END(self.VA_BITS_MIN)
         self.MODULES_END = self.MODULES_VADDR + self.MODULES_VSIZE
 
-        self.VMEMMAP_SHIFT = (self.PAGE_SHIFT - self.STRUCT_PAGE_MAX_SHIFT)
-        self.VMEMMAP_SIZE = ((self._PAGE_END(self.VA_BITS_MIN) - self.PAGE_OFFSET) >> self.VMEMMAP_SHIFT)
-        self.VMEMMAP_START = (-(1 << (self.VA_BITS - self.VMEMMAP_SHIFT))) & 0xffffffffffffffff
-        self.VMEMMAP_END = self.VMEMMAP_START + self.VMEMMAP_SIZE
+        self.VMEMMAP_RANGE = self._PAGE_END(self.VA_BITS_MIN) - self.PAGE_OFFSET
+        self.VMEMMAP_SIZE = (self.VMEMMAP_RANGE >> self.PAGE_SHIFT) * self.struct_page_size
+        self.VMEMMAP_END = (-(1 * 1024 * 1024 * 1024)) & 0xffffffffffffffff
+        self.VMEMMAP_START = self.VMEMMAP_END - self.VMEMMAP_SIZE
 
         self.VMALLOC_START = self.MODULES_END
         self.VMALLOC_END = self.VMEMMAP_START - 256 * 1024 * 1024

scripts/gdb/linux/stackdepot.py

@@ -27,14 +27,18 @@ def stack_depot_fetch(handle):
     offset = parts['offset'] << DEPOT_STACK_ALIGN
     pools_num = gdb.parse_and_eval('pools_num')
 
-    if parts['pool_index'] > pools_num:
+    if handle == 0:
+        raise gdb.GdbError("handle is 0\n")
+
+    pool_index = parts['pool_index_plus_1'] - 1
+    if pool_index >= pools_num:
         gdb.write("pool index %d out of bounds (%d) for stack id 0x%08x\n" % (parts['pool_index'], pools_num, handle))
         return gdb.Value(0), 0
 
     stack_pools = gdb.parse_and_eval('stack_pools')
 
     try:
-        pool = stack_pools[parts['pool_index']]
+        pool = stack_pools[pool_index]
         stack = (pool + gdb.Value(offset).cast(utils.get_size_t_type())).cast(stack_record_type.get_type().pointer())
         size = int(stack['size'].cast(utils.get_ulong_type()))
         return stack['entries'], size