From 0eeca28300df110bd6ed54b31193c83b87921443 Mon Sep 17 00:00:00 2001 From: Robert Love Date: Tue, 12 Jul 2005 17:06:03 -0400 Subject: [PATCH] inotify inotify is intended to correct the deficiencies of dnotify, particularly its inability to scale and its terrible user interface: * dnotify requires the opening of one fd per each directory that you intend to watch. This quickly results in too many open files and pins removable media, preventing unmount. * dnotify is directory-based. You only learn about changes to directories. Sure, a change to a file in a directory affects the directory, but you are then forced to keep a cache of stat structures. * dnotify's interface to user-space is awful. Signals? inotify provides a more usable, simple, powerful solution to file change notification: * inotify's interface is a system call that returns a fd, not SIGIO. You get a single fd, which is select()-able. * inotify has an event that says "the filesystem that the item you were watching is on was unmounted." * inotify can watch directories or files. Inotify is currently used by Beagle (a desktop search infrastructure), Gamin (a FAM replacement), and other projects. See Documentation/filesystems/inotify.txt. Signed-off-by: Robert Love Cc: John McCutchan Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/unistd.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/asm-i386') diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index e25e4c71a87..a7cb377745b 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h @@ -296,8 +296,11 @@ #define __NR_keyctl 288 #define __NR_ioprio_set 289 #define __NR_ioprio_get 290 +#define __NR_inotify_init 291 +#define __NR_inotify_add_watch 292 +#define __NR_inotify_rm_watch 293 -#define NR_syscalls 291 +#define NR_syscalls 294 /* * user-visible error numbers are in the range -1 - -128: see -- cgit v1.2.3