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linux/fs/proc
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Kalesh Singh 1f0c32a667 UPSTREAM: procfs/dmabuf: add inode number to /proc/*/fdinfo 
And 'ino' field to /proc/<pid>/fdinfo/<FD> and
/proc/<pid>/task/<tid>/fdinfo/<FD>.

The inode numbers can be used to uniquely identify DMA buffers in user
space and avoids a dependency on /proc/<pid>/fd/* when accounting
per-process DMA buffer sizes.

Link: https://lkml.kernel.org/r/20210308170651.919148-2-kaleshsingh@google.com
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christian König <christian.koenig@amd.com>
Cc: Jann Horn <jannh@google.com>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Alexey Gladkov <gladkov.alexey@gmail.com>
Cc: Szabolcs Nagy <szabolcs.nagy@arm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Bernd Edlinger <bernd.edlinger@hotmail.de>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Helge Deller <deller@gmx.de>
Cc: James Morris <jamorris@linux.microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 3845f256a8)

Bug: 159126739
Bug: 167141117
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Id07beac3edcc95c0b42805e24e5486965acbb46e
2021-07-12 22:38:22 +00:00
..
array.c seccomp: Fix CONFIG tests for Seccomp_filters 2021-05-14 09:50:24 +02:00
base.c UPSTREAM: procfs: allow reading fdinfo with PTRACE_MODE_READ 2021-07-12 22:38:16 +00:00
bootconfig.c FROMLIST: bootconfig: Change array value to use child node 2021-06-03 19:56:53 +00:00
cmdline.c
consoles.c
cpuinfo.c proc/cpuinfo: switch to ->read_iter 2020-11-06 10:05:18 -08:00
devices.c block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
fd.c UPSTREAM: procfs/dmabuf: add inode number to /proc/*/fdinfo 2021-07-12 22:38:22 +00:00
fd.h
generic.c fs/proc/generic.c: fix incorrect pde_is_permanent check 2021-05-19 10:13:09 +02:00
inode.c proc: wire up generic_file_splice_read for iter ops 2020-11-06 10:05:18 -08:00
internal.h proc: fix lookup in /proc/net subdirectories after setns(2) 2020-12-30 11:53:56 +01:00
interrupts.c
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
kcore.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
kmsg.c proc: faster open/read/close with "permanent" files 2020-04-07 10:43:42 -07:00
loadavg.c
Makefile Revert "ANDROID: proc: Add /proc/uid directory" 2020-03-06 12:32:34 -08:00
meminfo.c ANDROID: vendor_hooks: Add hooks for memory when debug 2021-03-19 04:54:07 +00:00
namespaces.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
nommu.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
page.c mm: Add PG_arch_2 page flag 2020-09-04 12:46:06 +01:00
proc_net.c proc: fix lookup in /proc/net subdirectories after setns(2) 2020-12-30 11:53:56 +01:00
proc_sysctl.c proc: use kvzalloc for our kernel buffer 2021-03-04 11:38:21 +01:00
proc_tty.c
root.c Revert "ANDROID: make sure proc mount options are applied" 2020-06-23 09:36:15 +02:00
self.c proc: don't allow async path resolution of /proc/thread-self components 2021-03-04 11:38:42 +01:00
softirqs.c
stat.c proc/stat: switch to ->read_iter 2020-11-06 10:05:18 -08:00
task_mmu.c ANDROID: mm: page_pinner: use put_user_page at seq_print_vma_name 2021-04-30 09:13:35 -07:00
task_nommu.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
thread_self.c proc: don't allow async path resolution of /proc/thread-self components 2021-03-04 11:38:42 +01:00
uptime.c fs/proc: Respect boottime inside time namespace for /proc/uptime 2020-01-14 12:20:56 +01:00
util.c
version.c
vmcore.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00