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authorEric Paris <eparis@redhat.com>2009-12-17 21:24:26 -0500
committerEric Paris <eparis@redhat.com>2010-07-28 09:58:55 -0400
commit52c923dd079df49f58016a9e56df184b132611d6 (patch)
tree29263174337bd3c2b99a7c9452e8e0708635432b /include/linux/fanotify.h
parent11637e4b7dc098e9a863f0a619d55ebc60f5949e (diff)
downloadop-kernel-dev-52c923dd079df49f58016a9e56df184b132611d6.zip
op-kernel-dev-52c923dd079df49f58016a9e56df184b132611d6.tar.gz
fanotify: fanotify_init syscall implementation
NAME fanotify_init - initialize an fanotify group SYNOPSIS int fanotify_init(unsigned int flags, unsigned int event_f_flags, int priority); DESCRIPTION fanotify_init() initializes a new fanotify instance and returns a file descriptor associated with the new fanotify event queue. The following values can be OR'd into the flags field: FAN_NONBLOCK Set the O_NONBLOCK file status flag on the new open file description. Using this flag saves extra calls to fcntl(2) to achieve the same result. FAN_CLOEXEC Set the close-on-exec (FD_CLOEXEC) flag on the new file descriptor. See the description of the O_CLOEXEC flag in open(2) for reasons why this may be useful. The event_f_flags argument is unused and must be set to 0 The priority argument is unused and must be set to 0 RETURN VALUE On success, this system call return a new file descriptor. On error, -1 is returned, and errno is set to indicate the error. ERRORS EINVAL An invalid value was specified in flags. EINVAL A non-zero valid was passed in event_f_flags or in priority ENFILE The system limit on the total number of file descriptors has been reached. ENOMEM Insufficient kernel memory is available. CONFORMING TO These system calls are Linux-specific. Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'include/linux/fanotify.h')
-rw-r--r--include/linux/fanotify.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index b560f86..00bc6d4 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -18,6 +18,10 @@
/* helper events */
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
+#define FAN_CLOEXEC 0x00000001
+#define FAN_NONBLOCK 0x00000002
+
+#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK)
/*
* All of the events - we build the list by hand so that we can add flags in
* the future and not break backward compatibility. Apps will get only the
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