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From: Kent Overstreet <koverstreet@google.com>
To: linux-kernel@vger.kernel.org, linux-aio@kvack.org,
	linux-fsdevel@vger.kernel.org
Cc: zab@redhat.com, bcrl@kvack.org, jmoyer@redhat.com,
	axboe@kernel.dk, viro@zeniv.linux.org.uk,
	Kent Overstreet <koverstreet@google.com>
Subject: [PATCH 08/26] aio: Move private stuff out of aio.h
Date: Mon,  3 Dec 2012 12:58:24 -0800	[thread overview]
Message-ID: <1354568322-29029-9-git-send-email-koverstreet@google.com> (raw)
In-Reply-To: <1354568322-29029-1-git-send-email-koverstreet@google.com>

Signed-off-by: Kent Overstreet <koverstreet@google.com>
---
 drivers/usb/gadget/inode.c |  1 +
 fs/aio.c                   | 61 ++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/aio.h        | 61 ----------------------------------------------
 3 files changed, 62 insertions(+), 61 deletions(-)

diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 2a3f001..7640e01 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -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>
diff --git a/fs/aio.c b/fs/aio.c
index 786c904..35a2153e 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -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 */
diff --git a/include/linux/aio.h b/include/linux/aio.h
index 0ce99e8..f29de1f 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -104,67 +104,6 @@ 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);
-- 
1.7.12


  parent reply	other threads:[~2012-12-03 20:59 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-03 20:58 [PATCH 00/26] AIO performance improvements/cleanups, v2 Kent Overstreet
2012-12-03 20:58 ` [PATCH 01/26] mm: remove old aio use_mm() comment Kent Overstreet
2012-12-03 20:58 ` [PATCH 02/26] aio: remove dead code from aio.h Kent Overstreet
2012-12-03 20:58 ` [PATCH 03/26] gadget: remove only user of aio retry Kent Overstreet
2012-12-03 20:58 ` [PATCH 04/26] aio: remove retry-based AIO Kent Overstreet
2012-12-27 10:11   ` Fubo Chen
2012-12-03 20:58 ` [PATCH 05/26] char: add aio_{read,write} to /dev/{null,zero} Kent Overstreet
2012-12-03 20:58 ` [PATCH 06/26] aio: Kill return value of aio_complete() Kent Overstreet
2012-12-03 20:58 ` [PATCH 07/26] aio: kiocb_cancel() Kent Overstreet
2012-12-03 20:58 ` Kent Overstreet [this message]
2012-12-03 20:58 ` [PATCH 09/26] aio: dprintk() -> pr_debug() Kent Overstreet
2012-12-03 20:58 ` [PATCH 10/26] aio: do fget() after aio_get_req() Kent Overstreet
2012-12-03 20:58 ` [PATCH 11/26] aio: Make aio_put_req() lockless Kent Overstreet
2012-12-03 20:58 ` [PATCH 12/26] aio: Refcounting cleanup Kent Overstreet
2012-12-03 20:58 ` [PATCH 13/26] aio: Convert read_events() to hrtimers Kent Overstreet
2012-12-03 20:58 ` [PATCH 14/26] aio: Make aio_read_evt() more efficient Kent Overstreet
2012-12-03 20:58 ` [PATCH 15/26] aio: Use flush_dcache_page() Kent Overstreet
2012-12-03 20:58 ` [PATCH 16/26] aio: Use cancellation list lazily Kent Overstreet
2012-12-03 20:58 ` [PATCH 17/26] aio: Change reqs_active to include unreaped completions Kent Overstreet
2012-12-03 20:58 ` [PATCH 18/26] aio: Kill batch allocation Kent Overstreet
2012-12-03 20:58 ` [PATCH 19/26] aio: Kill struct aio_ring_info Kent Overstreet
2012-12-03 20:58 ` [PATCH 20/26] aio: Give shared kioctx fields their own cachelines Kent Overstreet
2012-12-03 20:58 ` [PATCH 21/26] aio: reqs_active -> reqs_available Kent Overstreet
2012-12-03 20:58 ` [PATCH 22/26] aio: percpu reqs_available Kent Overstreet
2012-12-03 20:58 ` [PATCH 23/26] Generic dynamic per cpu refcounting Kent Overstreet
2012-12-27 13:47   ` Fubo Chen
2012-12-03 20:58 ` [PATCH 24/26] aio: Percpu ioctx refcount Kent Overstreet
2012-12-03 20:58 ` [PATCH 25/26] aio: use xchg() instead of completion_lock Kent Overstreet
2012-12-03 20:58 ` [PATCH 26/26] aio: Don't include aio.h in sched.h Kent Overstreet
2012-12-13 21:18 ` [PATCH 00/26] AIO performance improvements/cleanups, v2 Jens Axboe
2012-12-14  2:26   ` Jack Wang
2012-12-14  7:35     ` Jens Axboe
2012-12-15  9:25       ` Kent Overstreet
2012-12-15  9:46         ` Jens Axboe
2012-12-15 10:36           ` Kent Overstreet
2012-12-15 12:59             ` Jens Axboe
2012-12-15 13:16             ` Jens Axboe
2012-12-18 19:16               ` Kent Overstreet
2012-12-19  6:45                 ` Kent Overstreet

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