| From | David Howells <> | Subject | [PATCH 17/45] FS-Cache: Bit waiting helpers [ver #41] | Date | Thu, 20 Nov 2008 14:43:07 +0000 |
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Add helpers for use with wait_on_bit().
Signed-off-by: David Howells <dhowells@redhat.com> ---
fs/fscache/fsc-internal.h | 3 +++ fs/fscache/fsc-main.c | 20 ++++++++++++++++++++ 2 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/fs/fscache/fsc-internal.h b/fs/fscache/fsc-internal.h index 8f1beb5..5418101 100644 --- a/fs/fscache/fsc-internal.h +++ b/fs/fscache/fsc-internal.h @@ -58,6 +58,9 @@ 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-stats.c */ diff --git a/fs/fscache/fsc-main.c b/fs/fscache/fsc-main.c index 5ecbaa7..714c0ef 100644 --- a/fs/fscache/fsc-main.c +++ b/fs/fscache/fsc-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);
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