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Commit 2868cbea authored by David Howells's avatar David Howells
Browse files

FS-Cache: Bit waiting helpers 



Add helpers for use with wait_on_bit().

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Acked-by: default avatarSteve Dickson <steved@redhat.com>
Acked-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Tested-by: default avatarDaire Byrne <Daire.Byrne@framestore.com>
parent 726dd7ff

fs/fscache/internal.h

+3 −0
Original line number Diff line number Diff line
@@ -82,6 +82,9 @@ extern unsigned fscache_defer_create; 
extern unsigned fscache_debug;

extern struct kobject *fscache_root;



extern int fscache_wait_bit(void *);

extern int fscache_wait_bit_interruptible(void *);



/*

 * fsc-proc.c

 */

fs/fscache/main.c

+20 −0
Original line number Diff line number Diff line
@@ -102,3 +102,23 @@ static void __exit fscache_exit(void) 
}



module_exit(fscache_exit);



/*

 * wait_on_bit() sleep function for uninterruptible waiting

 */

int fscache_wait_bit(void *flags)

{

	schedule();

	return 0;

}

EXPORT_SYMBOL(fscache_wait_bit);



/*

 * wait_on_bit() sleep function for interruptible waiting

 */

int fscache_wait_bit_interruptible(void *flags)

{

	schedule();

	return signal_pending(current);

}

EXPORT_SYMBOL(fscache_wait_bit_interruptible);