Cyrill Gorcunov 77493f04b7 procfs: fdinfo: extend information about epoll target files ... Since it is possbile to have same number in tfd field (say file added, closed, then nother file dup'ed to same number and added back) it is imposible to distinguish such target files solely by their numbers. Strictly speaking regular applications don't need to recognize these targets at all but for checkpoint/restore sake we need to collect targets to be able to push them back on restore stage in a proper order. Thus lets add file position, inode and device number where this target lays. This three fields can be used as a primary key for sorting, and together with kcmp help CRIU can find out an exact file target (from the whole set of processes being checkpointed). Link: http://lkml.kernel.org/r/20170424154423.436491881@gmail.com Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Andrei Vagin <avagin@virtuozzo.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-07-12 16:26:01 -07:00
..
caching	FS-Cache: Count the number of initialised operations	2015-04-02 14:28:53 +01:00
cifs	Documentation: fix common spelling mistakes	2016-04-28 07:51:59 -06:00
configfs	fs: configfs: don't return anything from drop_link	2016-12-01 10:50:49 +01:00
nfs	doc: ReSTify keys-request-key.txt	2017-05-18 10:33:51 -06:00
pohmelfs	Documentation: fix common spelling mistakes	2016-04-28 07:51:59 -06:00
9p.txt	9p: update documentation	2014-01-24 10:55:21 -06:00
00-INDEX	logfs: remove from tree	2016-12-14 23:48:11 -05:00
adfs.txt
affs.txt	affs: add mount option to avoid filename truncates	2014-04-07 16:36:08 -07:00
afs.txt	rxrpc: Change module filename to rxrpc.ko	2017-02-17 15:09:19 -05:00
autofs4-mount-control.txt	autofs: update ioctl documentation regarding struct autofs_dev_ioctl	2017-02-27 18:43:45 -08:00
autofs4.txt	Fix up over-eager 'wait_queue_t' renaming	2017-07-10 11:40:19 -07:00
automount-support.txt	Documentation: remove outdated information from automount-support.txt	2015-05-15 01:10:38 -04:00
befs.txt
bfs.txt	Tigran has moved	2017-05-12 15:57:15 -07:00
btrfs.txt	Documentation: btrfs: remove usage specific information	2016-03-11 17:02:09 +01:00
ceph.txt	ceph: set io_pages bdi hint	2017-02-20 12:16:05 +01:00
coda.txt
conf.py	docs-rst: convert filesystems book to ReST	2017-05-16 08:44:08 -03:00
cramfs.txt	mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage	2016-04-04 10:41:08 -07:00
dax.txt	dax: rip out get_block based IO support	2016-11-20 20:48:36 -05:00
debugfs.txt	debugfs: Pass bool pointer to debugfs_create_bool()	2015-10-04 11:36:07 +01:00
devpts.txt	devpts: Make each mount of devpts an independent filesystem.	2016-06-05 10:36:01 -07:00
directory-locking	vfs: remove unused i_op->rename	2016-09-27 11:03:58 +02:00
dlmfs.txt	ocfs2: update web page + git tree in documentation	2015-02-28 09:57:50 -08:00
dnotify.txt
ecryptfs.txt
efivarfs.txt	efi: Make efivarfs entries immutable by default	2016-02-10 16:25:52 +00:00
exofs.txt
ext2.txt	fs: Remove ext3 filesystem driver	2015-07-23 20:59:40 +02:00
ext3.txt	fs: Remove ext3 filesystem driver	2015-07-23 20:59:40 +02:00
ext4.txt	Documentation: Fix dead URLs to ftp.kernel.org	2017-03-29 15:46:06 -06:00
f2fs.txt	f2fs: support plain user/group quota	2017-07-08 23:12:27 -07:00
fiemap.txt	fsioctl.c: make generic_block_fiemap() signal-tolerant	2015-02-10 14:30:30 -08:00
files.txt
fuse.txt
gfs2-glocks.txt	gfs2: Remove gl_spin define	2015-10-29 12:57:48 -05:00
gfs2-uevents.txt
gfs2.txt
hfs.txt
hfsplus.txt	Documentation: update URL to hfsplus Technote 1150	2014-02-20 14:48:51 +01:00
hpfs.txt
index.rst	docs-rst: don't ignore internal functions for jbd2 docs	2017-05-16 08:44:09 -03:00
inotify.txt	inotify: update documentation to reflect code changes	2015-02-10 14:30:28 -08:00
isofs.txt
jfs.txt	doc: fix misspellings with 'codespell' tool	2013-05-28 12:02:12 +02:00
Locking	Documentation/filesystems: fix documentation for ->getattr()	2017-04-03 01:05:56 -04:00
locks.txt	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
mandatory-locking.txt
ncpfs.txt
nilfs2.txt	nilfs2: move ioctl interface and disk layout to uapi separately	2016-08-02 19:35:21 -04:00
ntfs.txt	NTFS: Remove changelog from Documentation/filesystems/ntfs.txt.	2014-10-16 12:43:57 +01:00
ocfs2-online-filecheck.txt	Doc: ocfs: Fix typo in filesystems/ocfs2-online-filecheck.txt	2016-07-01 16:17:15 -06:00
ocfs2.txt	ocfs2: update web page + git tree in documentation	2015-02-28 09:57:50 -08:00
omfs.txt
orangefs.txt	Orangefs: update orangefs.txt	2016-08-02 15:39:14 -04:00
overlayfs.txt	ovl: document copying layers restrictions with inodes index	2017-07-04 22:03:19 +02:00
path-lookup.md	Documentation: add new description of path-name lookup.	2015-11-02 18:18:25 -07:00
path-lookup.txt	Documentation: add new description of path-name lookup.	2015-11-02 18:18:25 -07:00
porting	Documentation/filesystems: fix documentation for ->getattr()	2017-04-03 01:05:56 -04:00
proc.txt	procfs: fdinfo: extend information about epoll target files	2017-07-12 16:26:01 -07:00
qnx6.txt	Documentation: fix common spelling mistakes	2016-04-28 07:51:59 -06:00
quota.txt	scripts/spelling.txt: add "an user" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
ramfs-rootfs-initramfs.txt	initmpfs: use initramfs if rootfstype= or root= specified	2013-09-11 15:59:38 -07:00
relay.txt	doc: Fix typo in doucmentations	2013-07-25 12:34:15 +02:00
romfs.txt
seq_file.txt	Documentation: update seq_file	2014-12-29 15:40:18 -07:00
sharedsubtree.txt	doc: fix grammar	2016-03-09 15:33:06 -07:00
spufs.txt
squashfs.txt	Squashfs: Add LZ4 compression configuration option	2014-11-27 18:48:44 +00:00
sysfs-pci.txt	PCI: Add pci_mmap_resource_range() and use it for ARM64	2017-04-20 08:47:47 -05:00
sysfs-tagging.txt	sysfs-tagging.txt: fix pre-kernfs references	2015-09-13 14:38:51 -06:00
sysfs.txt	sysfs.txt: mention that store method buffers are null-terminated	2015-09-13 14:38:51 -06:00
sysv-fs.txt
tmpfs.txt	Documenation: update cgroup's document path	2016-08-03 15:43:58 -06:00
ubifs.txt
udf.txt
ufs.txt
vfat.txt	fat: add config option to set UTF-8 mount option by default	2016-03-22 15:36:02 -07:00
vfs.txt	Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors	2017-07-06 07:02:27 -04:00
xfs-delayed-logging-design.txt
xfs-self-describing-metadata.txt	xfs: add metadata CRC documentation	2013-04-27 13:27:43 -05:00
xfs.txt	xfs: deprecate barrier/nobarrier mount option	2016-12-09 16:49:54 +11:00