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Commit e71ec593 authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Linus Torvalds
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docs: update documentation about /proc/<pid>/fdinfo/<fd> fanotify output 



Signed-off-by: default avatarCyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matthew Helsley <matt.helsley@gmail.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e6dbcafb

Documentation/filesystems/proc.txt

+17 −11
Original line number Diff line number Diff line
@@ -1698,21 +1698,27 @@ pair provide additional information particular to the objects they represent. 
	If the kernel is built without exportfs support the file handle won't be

	printed out.



	For fanotify files the format is



	pos:	0

	flags:	02

	fanotify ino:2 sdev:800013 mask:1 ignored_mask:40000000 fhandle-bytes:8 fhandle-type:1 f_handle:0200000000000000

	If there is no inotify mark attached yet the 'inotify' line will be omitted.



	or

	For fanotify files the format is



	pos:	0

	flags:	02

	fanotify mnt_id:13 mask:1 ignored_mask:40000000



	where 'ino', 'sdev' are target inode and device, 'mnt_id' is the mount

	point identifier, 'mask' is the events mask used and 'ignored_mask' is

	the mask of events which are to be ignored. All in hex format.

	fanotify flags:10 event-flags:0

	fanotify mnt_id:12 mflags:40 mask:38 ignored_mask:40000003

	fanotify ino:4f969 sdev:800013 mflags:0 mask:3b ignored_mask:40000000 fhandle-bytes:8 fhandle-type:1 f_handle:69f90400c275b5b4



	where fanotify 'flags' and 'event-flags' are values used in fanotify_init

	call, 'mnt_id' is the mount point identifier, 'mflags' is the value of

	flags associated with mark which are tracked separately from events

	mask. 'ino', 'sdev' are target inode and device, 'mask' is the events

	mask and 'ignored_mask' is the mask of events which are to be ignored.

	All in hex format. Incorporation of 'mflags', 'mask' and 'ignored_mask'

	does provide information about flags and mask used in fanotify_mark

	call [see fsnotify manpage for details].



	While the first three lines are mandatory and always printed, the rest is

	optional and may be omitted if no marks created yet.





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