diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-11-18 11:44:17 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-18 11:44:17 -0500 |
| commit | f333b3f111e9db76109e304df8ee777ace7fbf86 (patch) | |
| tree | ce9a74a7327020c48c80d278e1db5f12552f0fb0 /include/linux/aio.h | |
| parent | f4256e301d9800b1e0276404cb01b3ac85b51067 (diff) | |
| parent | 79bfb0a98fdc73ed6a18469cef245cbf50a1d8bb (diff) | |
Merge branch 'upstream'
Diffstat (limited to 'include/linux/aio.h')
| -rw-r--r-- | include/linux/aio.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/aio.h b/include/linux/aio.h index 403d71dcb7c..49fd37629ee 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -124,7 +124,7 @@ struct kiocb { (x)->ki_users = 1; \ (x)->ki_key = KIOCB_SYNC_KEY; \ (x)->ki_filp = (filp); \ - (x)->ki_ctx = &tsk->active_mm->default_kioctx; \ + (x)->ki_ctx = NULL; \ (x)->ki_cancel = NULL; \ (x)->ki_dtor = NULL; \ (x)->ki_obj.tsk = tsk; \ @@ -210,8 +210,15 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id); int FASTCALL(io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, struct iocb *iocb)); -#define get_ioctx(kioctx) do { if (unlikely(atomic_read(&(kioctx)->users) <= 0)) BUG(); atomic_inc(&(kioctx)->users); } while (0) -#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) +#define get_ioctx(kioctx) do { \ + BUG_ON(unlikely(atomic_read(&(kioctx)->users) <= 0)); \ + atomic_inc(&(kioctx)->users); \ +} while (0) +#define put_ioctx(kioctx) do { \ + BUG_ON(unlikely(atomic_read(&(kioctx)->users) <= 0)); \ + if (unlikely(atomic_dec_and_test(&(kioctx)->users))) \ + __put_ioctx(kioctx); \ +} while (0) #define in_aio() !is_sync_wait(current->io_wait) /* may be used for debugging */ |