[PATCH 2/5] aio: Export aio_nr_lock and aio_max_nr initial value to include/linux/aio.h
From: Kirill Tkhai <hidden>
Date: 2017-12-04 16:13:22
Also in:
lkml
Subsystem:
aio, filesystems (vfs and infrastructure), the rest · Maintainers:
Benjamin LaHaise, Alexander Viro, Christian Brauner, Linus Torvalds
Next patch will use the values in more files, so let's make them visible external. Signed-off-by: Kirill Tkhai <redacted> --- fs/aio.c | 4 ++-- include/linux/aio.h | 4 ++++ 2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index 04209c0561b2..9dc98a29077c 100644
--- a/fs/aio.c
+++ b/fs/aio.c@@ -188,10 +188,10 @@ struct aio_kiocb { struct eventfd_ctx *ki_eventfd; }; +DEFINE_SPINLOCK(aio_nr_lock); /*------ sysctl variables----*/ -static DEFINE_SPINLOCK(aio_nr_lock); unsigned long aio_nr; /* current system wide number of aio requests */ -unsigned long aio_max_nr = 0x10000; /* system wide maximum number of aio requests */ +unsigned long aio_max_nr = AIO_NR_DEF; /* system wide maximum number of aio requests */ /*----end sysctl variables---*/ static struct kmem_cache *kiocb_cachep;
diff --git a/include/linux/aio.h b/include/linux/aio.h
index 9d8aabecfe2d..5dda2663802f 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h@@ -10,6 +10,10 @@ struct mm_struct; #define KIOCB_KEY 0 +#define AIO_NR_INF (-1UL) +#define AIO_NR_DEF 0x10000 + +extern spinlock_t aio_nr_lock; typedef int (kiocb_cancel_fn)(struct kiocb *); /* prototypes */