[PATCH bpf-next v3 5/9] docs/procfs: Document KALLSYMS_QUERY_* ioctls on /proc/kallsyms

[Samuel Wu <wusamuel@google.com>]

Add kallsyms to the /proc file table, and a short section that refers to
the KALLSYMS_QUERY_* definitions in include/uapi/linux/fs.h.

Signed-off-by: Samuel Wu <wusamuel@google.com>
---
 Documentation/filesystems/proc.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index fa7a468e8edf..442aae9ebd9e 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -761,6 +761,7 @@ files are there, and which are missing.
  ioports      I/O port usage
  irq 	      Masks for irq to cpu affinity			(2.4)(smp?)
  isapnp       ISA PnP (Plug&Play) Info				(2.4)
+ kallsyms     All kernel symbols (see text)
  kcore        Kernel core image (can be ELF or A.OUT(deprecated in 2.4))
  kmsg         Kernel messages
  ksyms        Kernel symbol table
@@ -1368,6 +1369,14 @@ Provides counts of softirq handlers serviced since boot time, for each CPU.
     HRTIMER:         0          0          0          0
 	RCU:      1678       1769       2178       2250
 
+kallsyms
+~~~~~~~~
+
+Lists the kernel symbols of vmlinux, loaded modules, and dynamic sources such
+as BPF JIT images. The ``KALLSYMS_QUERY_BY_NAME`` and ``KALLSYMS_QUERY_BY_ADDR``
+ioctls find one symbol by name or by address without parsing the text. See
+``include/uapi/linux/fs.h`` for their structs and errors.
+
 1.3 Networking info in /proc/net
 --------------------------------
 
-- 
2.56.0.679.gc527c65306-goog