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Commit 1e0051ae authored by Randy Dunlap's avatar Randy Dunlap Committed by Linus Torvalds
Browse files

Documentation/fs/: split txt and source files 



Make dnotify_test.c source file and add it to Makefile so that
bitrot can be prevented.

Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d49129ac

Documentation/Makefile

+1 −1
Original line number Diff line number Diff line 
obj-m := DocBook/ accounting/ auxdisplay/ connector/ \

	filesystems/configfs/ ia64/ laptops/ networking/ \

	filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \

	pcmcia/ spi/ timers/ video4linux/ vm/ watchdog/src/

Documentation/filesystems/00-INDEX

+2 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ dlmfs.txt 
	- info on the userspace interface to the OCFS2 DLM.

dnotify.txt

	- info about directory notification in Linux.

dnotify_test.c

	- example program for dnotify

ecryptfs.txt

	- docs on eCryptfs: stacked cryptographic filesystem for Linux.

exofs.txt

Documentation/filesystems/Makefile

0 → 100644
+8 −0
Original line number Diff line number Diff line 
# kbuild trick to avoid linker error. Can be omitted if a module is built.

obj- := dummy.o



# List of programs to build

hostprogs-y := dnotify_test



# Tell kbuild to always build the programs

always := $(hostprogs-y)

Documentation/filesystems/dnotify.txt

+5 −34
Original line number Diff line number Diff line
@@ -62,38 +62,9 @@ disabled, fcntl(fd, F_NOTIFY, ...) will return -EINVAL. 


Example

-------

See Documentation/filesystems/dnotify_test.c for an example.



	#define _GNU_SOURCE	/* needed to get the defines */

	#include <fcntl.h>	/* in glibc 2.2 this has the needed

					   values defined */

	#include <signal.h>

	#include <stdio.h>

	#include <unistd.h>



	static volatile int event_fd;



	static void handler(int sig, siginfo_t *si, void *data)

	{

		event_fd = si->si_fd;

	}



	int main(void)

	{

		struct sigaction act;

		int fd;



		act.sa_sigaction = handler;

		sigemptyset(&act.sa_mask);

		act.sa_flags = SA_SIGINFO;

		sigaction(SIGRTMIN + 1, &act, NULL);



		fd = open(".", O_RDONLY);

		fcntl(fd, F_SETSIG, SIGRTMIN + 1);

		fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT);

		/* we will now be notified if any of the files

		   in "." is modified or new files are created */

		while (1) {

			pause();

			printf("Got event on fd=%d\n", event_fd);

		}

	}
 
NOTE

----

Beginning with Linux 2.6.13, dnotify has been replaced by inotify.

See Documentation/filesystems/inotify.txt for more information on it.

Documentation/filesystems/dnotify_test.c

0 → 100644
+34 −0
Original line number Diff line number Diff line 
#define _GNU_SOURCE	/* needed to get the defines */

#include <fcntl.h>	/* in glibc 2.2 this has the needed

				   values defined */

#include <signal.h>

#include <stdio.h>

#include <unistd.h>



static volatile int event_fd;



static void handler(int sig, siginfo_t *si, void *data)

{

	event_fd = si->si_fd;

}



int main(void)

{

	struct sigaction act;

	int fd;



	act.sa_sigaction = handler;

	sigemptyset(&act.sa_mask);

	act.sa_flags = SA_SIGINFO;

	sigaction(SIGRTMIN + 1, &act, NULL);



	fd = open(".", O_RDONLY);

	fcntl(fd, F_SETSIG, SIGRTMIN + 1);

	fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT);

	/* we will now be notified if any of the files

	   in "." is modified or new files are created */

	while (1) {

		pause();

		printf("Got event on fd=%d\n", event_fd);

	}

}