Messages in this thread Patch in this message | | | From | David Howells <> | Subject | [PATCH 16/43] FS-Cache: Bit waiting helpers [ver #46] | Date | Thu, 02 Apr 2009 00:04:44 +0100 |
| |
Add helpers for use with wait_on_bit().
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> ---
fs/fscache/internal.h | 3 +++ fs/fscache/main.c | 20 ++++++++++++++++++++ 2 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h index 4c6ba56..1638994 100644 --- a/fs/fscache/internal.h +++ b/fs/fscache/internal.h @@ -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 */ diff --git a/fs/fscache/main.c b/fs/fscache/main.c index 48b79d2..4de41b5 100644 --- a/fs/fscache/main.c +++ b/fs/fscache/main.c @@ -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);
| |