Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 2 deletions

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index c6a6b9df21..82d142de34 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -571,6 +571,7 @@ encoded manner. The codes are the following:
     um    userfaultfd missing tracking
     uw    userfaultfd wr-protect tracking
     ss    shadow stack page
+    sl    sealed
     ==    =======================================
 
 Note that there is no guarantee that every flag and associated mnemonic will
@@ -688,6 +689,7 @@ files are there, and which are missing.
  ============ ===============================================================
  File         Content
  ============ ===============================================================
+ allocinfo    Memory allocations profiling information
  apm          Advanced power management info
  bootconfig   Kernel command line obtained from boot config,
  	      and, if there were kernel parameters from the
@@ -953,6 +955,35 @@ also be allocatable although a lot of filesystem metadata may have to be
 reclaimed to achieve this.
 
 
+allocinfo
+~~~~~~~~~
+
+Provides information about memory allocations at all locations in the code
+base. Each allocation in the code is identified by its source file, line
+number, module (if originates from a loadable module) and the function calling
+the allocation. The number of bytes allocated and number of calls at each
+location are reported. The first line indicates the version of the file, the
+second line is the header listing fields in the file.
+
+Example output.
+
+::
+
+    > tail -n +3 /proc/allocinfo | sort -rn
+   127664128    31168 mm/page_ext.c:270 func:alloc_page_ext
+    56373248     4737 mm/slub.c:2259 func:alloc_slab_page
+    14880768     3633 mm/readahead.c:247 func:page_cache_ra_unbounded
+    14417920     3520 mm/mm_init.c:2530 func:alloc_large_system_hash
+    13377536      234 block/blk-mq.c:3421 func:blk_mq_alloc_rqs
+    11718656     2861 mm/filemap.c:1919 func:__filemap_get_folio
+     9192960     2800 kernel/fork.c:307 func:alloc_thread_stack_node
+     4206592        4 net/netfilter/nf_conntrack_core.c:2567 func:nf_ct_alloc_hashtable
+     4136960     1010 drivers/staging/ctagmod/ctagmod.c:20 [ctagmod] func:ctagmod_start
+     3940352      962 mm/memory.c:4214 func:alloc_anon_folio
+     2894464    22613 fs/kernfs/dir.c:615 func:__kernfs_new_node
+     ...
+
+
 meminfo
 ~~~~~~~
 
@@ -1110,8 +1141,8 @@ KernelStack
 PageTables
               Memory consumed by userspace page tables
 SecPageTables
-              Memory consumed by secondary page tables, this currently
-              currently includes KVM mmu allocations on x86 and arm64.
+              Memory consumed by secondary page tables, this currently includes
+              KVM mmu and IOMMU allocations on x86 and arm64.
 NFS_Unstable
               Always zero. Previous counted pages which had been written to
               the server, but has not been committed to stable storage.