diff options
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/aio.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/aio.h b/include/linux/aio.h index 9e0ae8711276..49fd37629ee4 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h | |||
@@ -210,8 +210,15 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id); | |||
210 | int FASTCALL(io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, | 210 | int FASTCALL(io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, |
211 | struct iocb *iocb)); | 211 | struct iocb *iocb)); |
212 | 212 | ||
213 | #define get_ioctx(kioctx) do { if (unlikely(atomic_read(&(kioctx)->users) <= 0)) BUG(); atomic_inc(&(kioctx)->users); } while (0) | 213 | #define get_ioctx(kioctx) do { \ |
214 | #define put_ioctx(kioctx) do { if (unlikely(atomic_dec_and_test(&(kioctx)->users))) __put_ioctx(kioctx); else if (unlikely(atomic_read(&(kioctx)->users) < 0)) BUG(); } while (0) | 214 | BUG_ON(unlikely(atomic_read(&(kioctx)->users) <= 0)); \ |
215 | atomic_inc(&(kioctx)->users); \ | ||
216 | } while (0) | ||
217 | #define put_ioctx(kioctx) do { \ | ||
218 | BUG_ON(unlikely(atomic_read(&(kioctx)->users) <= 0)); \ | ||
219 | if (unlikely(atomic_dec_and_test(&(kioctx)->users))) \ | ||
220 | __put_ioctx(kioctx); \ | ||
221 | } while (0) | ||
215 | 222 | ||
216 | #define in_aio() !is_sync_wait(current->io_wait) | 223 | #define in_aio() !is_sync_wait(current->io_wait) |
217 | /* may be used for debugging */ | 224 | /* may be used for debugging */ |