Skip to content

Commit

Permalink
aio: move private stuff out of aio.h
Browse files Browse the repository at this point in the history
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Cc: Zach Brown <zab@redhat.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Asai Thambi S P <asamymuthupa@micron.com>
Cc: Selvan Mani <smani@micron.com>
Cc: Sam Bradshaw <sbradshaw@micron.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  • Loading branch information
Kent Overstreet authored and Linus Torvalds committed May 8, 2013
1 parent 906b973 commit 4e179bc
Show file tree
Hide file tree
Showing 3 changed files with 62 additions and 61 deletions.
1 change: 1 addition & 0 deletions drivers/usb/gadget/inode.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/mmu_context.h>
#include <linux/aio.h>

#include <linux/device.h>
#include <linux/moduleparam.h>
Expand Down
61 changes: 61 additions & 0 deletions fs/aio.c
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,67 @@
#define dprintk(x...) do { ; } while (0)
#endif

#define AIO_RING_MAGIC 0xa10a10a1
#define AIO_RING_COMPAT_FEATURES 1
#define AIO_RING_INCOMPAT_FEATURES 0
struct aio_ring {
unsigned id; /* kernel internal index number */
unsigned nr; /* number of io_events */
unsigned head;
unsigned tail;

unsigned magic;
unsigned compat_features;
unsigned incompat_features;
unsigned header_length; /* size of aio_ring */


struct io_event io_events[0];
}; /* 128 bytes + ring size */

#define AIO_RING_PAGES 8
struct aio_ring_info {
unsigned long mmap_base;
unsigned long mmap_size;

struct page **ring_pages;
spinlock_t ring_lock;
long nr_pages;

unsigned nr, tail;

struct page *internal_pages[AIO_RING_PAGES];
};

static inline unsigned aio_ring_avail(struct aio_ring_info *info,
struct aio_ring *ring)
{
return (ring->head + info->nr - 1 - ring->tail) % info->nr;
}

struct kioctx {
atomic_t users;
int dead;

/* This needs improving */
unsigned long user_id;
struct hlist_node list;

wait_queue_head_t wait;

spinlock_t ctx_lock;

int reqs_active;
struct list_head active_reqs; /* used for cancellation */

/* sys_io_setup currently limits this to an unsigned int */
unsigned max_reqs;

struct aio_ring_info ring_info;

struct rcu_head rcu_head;
};

/*------ sysctl variables----*/
static DEFINE_SPINLOCK(aio_nr_lock);
unsigned long aio_nr; /* current system wide number of aio requests */
Expand Down
61 changes: 0 additions & 61 deletions include/linux/aio.h
Original file line number Diff line number Diff line change
Expand Up @@ -103,67 +103,6 @@ static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
};
}

#define AIO_RING_MAGIC 0xa10a10a1
#define AIO_RING_COMPAT_FEATURES 1
#define AIO_RING_INCOMPAT_FEATURES 0
struct aio_ring {
unsigned id; /* kernel internal index number */
unsigned nr; /* number of io_events */
unsigned head;
unsigned tail;

unsigned magic;
unsigned compat_features;
unsigned incompat_features;
unsigned header_length; /* size of aio_ring */


struct io_event io_events[0];
}; /* 128 bytes + ring size */

#define AIO_RING_PAGES 8
struct aio_ring_info {
unsigned long mmap_base;
unsigned long mmap_size;

struct page **ring_pages;
spinlock_t ring_lock;
long nr_pages;

unsigned nr, tail;

struct page *internal_pages[AIO_RING_PAGES];
};

static inline unsigned aio_ring_avail(struct aio_ring_info *info,
struct aio_ring *ring)
{
return (ring->head + info->nr - 1 - ring->tail) % info->nr;
}

struct kioctx {
atomic_t users;
int dead;

/* This needs improving */
unsigned long user_id;
struct hlist_node list;

wait_queue_head_t wait;

spinlock_t ctx_lock;

int reqs_active;
struct list_head active_reqs; /* used for cancellation */

/* sys_io_setup currently limits this to an unsigned int */
unsigned max_reqs;

struct aio_ring_info ring_info;

struct rcu_head rcu_head;
};

/* prototypes */
#ifdef CONFIG_AIO
extern ssize_t wait_on_sync_kiocb(struct kiocb *iocb);
Expand Down

0 comments on commit 4e179bc

Please sign in to comment.