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Commit 2d9048e2 authored by Amy Griffis's avatar Amy Griffis Committed by Al Viro
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[PATCH] inotify (1/5): split kernel API from userspace support 



The following series of patches introduces a kernel API for inotify,
making it possible for kernel modules to benefit from inotify's
mechanism for watching inodes.  With these patches, inotify will
maintain for each caller a list of watches (via an embedded struct
inotify_watch), where each inotify_watch is associated with a
corresponding struct inode.  The caller registers an event handler and
specifies for which filesystem events their event handler should be
called per inotify_watch.

Signed-off-by: default avatarAmy Griffis <amy.griffis@hp.com>
Acked-by: default avatarRobert Love <rml@novell.com>
Acked-by: default avatarJohn McCutchan <john@johnmccutchan.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 90204e0b

fs/Kconfig

+18 −6
Original line number Diff line number Diff line
@@ -393,18 +393,30 @@ config INOTIFY 
	bool "Inotify file change notification support"

	default y

	---help---

	  Say Y here to enable inotify support and the associated system

	  calls.  Inotify is a file change notification system and a

	  replacement for dnotify.  Inotify fixes numerous shortcomings in

	  dnotify and introduces several new features.  It allows monitoring

	  of both files and directories via a single open fd.  Other features

	  include multiple file events, one-shot support, and unmount

	  Say Y here to enable inotify support.  Inotify is a file change

	  notification system and a replacement for dnotify.  Inotify fixes

	  numerous shortcomings in dnotify and introduces several new features

	  including multiple file events, one-shot support, and unmount

	  notification.



	  For more information, see Documentation/filesystems/inotify.txt



	  If unsure, say Y.



config INOTIFY_USER

	bool "Inotify support for userspace"

	depends on INOTIFY

	default y

	---help---

	  Say Y here to enable inotify support for userspace, including the

	  associated system calls.  Inotify allows monitoring of both files and

	  directories via a single open fd.  Events are read from the file

	  descriptor, which is also select()- and poll()-able.



	  For more information, see Documentation/filesystems/inotify.txt



	  If unsure, say Y.



config QUOTA

	bool "Quota support"

	help

fs/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ obj-y := open.o read_write.o file_table.o buffer.o bio.o super.o \ 
		ioprio.o pnode.o drop_caches.o splice.o sync.o



obj-$(CONFIG_INOTIFY)		+= inotify.o

obj-$(CONFIG_INOTIFY_USER)	+= inotify_user.o

obj-$(CONFIG_EPOLL)		+= eventpoll.o

obj-$(CONFIG_COMPAT)		+= compat.o compat_ioctl.o