From: ebiederm@xmission.com (Eric W. Biederman)
To: "Hans J. Koch" <hjk@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 2/5] uio: Kill unused vma_count.
Date: Mon, 20 Sep 2010 00:21:36 -0700 [thread overview]
Message-ID: <m1sk143mnz.fsf_-_@fess.ebiederm.org> (raw)
In-Reply-To: <m139t451b4.fsf_-_@fess.ebiederm.org> (Eric W. Biederman's message of "Mon, 20 Sep 2010 00:19:59 -0700")
Remove the tracking of how many vmas are using in the uio memory
mapping mode. The uio code doesn't use that information anywhere.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
---
drivers/uio/uio.c | 16 ----------------
1 files changed, 0 insertions(+), 16 deletions(-)
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 565559c..95f25ae 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -35,7 +35,6 @@ struct uio_device {
atomic_t event;
struct fasync_struct *async_queue;
wait_queue_head_t wait;
- int vma_count;
struct uio_info *info;
struct kobject *map_dir;
struct kobject *portio_dir;
@@ -599,18 +598,6 @@ static int uio_find_mem_index(struct vm_area_struct *vma)
return -1;
}
-static void uio_vma_open(struct vm_area_struct *vma)
-{
- struct uio_device *idev = vma->vm_private_data;
- idev->vma_count++;
-}
-
-static void uio_vma_close(struct vm_area_struct *vma)
-{
- struct uio_device *idev = vma->vm_private_data;
- idev->vma_count--;
-}
-
static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct uio_device *idev = vma->vm_private_data;
@@ -638,8 +625,6 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
}
static const struct vm_operations_struct uio_vm_ops = {
- .open = uio_vma_open,
- .close = uio_vma_close,
.fault = uio_vma_fault,
};
@@ -665,7 +650,6 @@ static int uio_mmap_logical(struct vm_area_struct *vma)
{
vma->vm_flags |= VM_RESERVED;
vma->vm_ops = &uio_vm_ops;
- uio_vma_open(vma);
return 0;
}
--
1.7.2.2
next prev parent reply other threads:[~2010-09-20 7:21 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-14 18:35 [PATCH 0/5] Uio enhancements Eric W. Biederman
2010-09-14 18:36 ` [PATCH 1/5] uio: Fix lack of locking in init_uio_class Eric W. Biederman
2010-09-17 20:32 ` Thomas Gleixner
2010-09-17 20:49 ` Hans J. Koch
2010-09-14 18:36 ` [PATCH 2/5] uio: Don't clear driver data Eric W. Biederman
2010-09-17 20:33 ` Thomas Gleixner
2010-09-17 20:50 ` Hans J. Koch
2010-09-14 18:37 ` [PATCH 3/5] uio: Cleanup irq handling Eric W. Biederman
2010-09-17 20:34 ` Thomas Gleixner
2010-09-17 20:51 ` Hans J. Koch
2010-09-14 18:38 ` [PATCH 4/5] uio: Support 2^MINOR_BITS minors Eric W. Biederman
2010-09-17 20:36 ` Thomas Gleixner
2010-09-17 20:57 ` Hans J. Koch
2010-09-17 21:09 ` Greg KH
2010-09-21 21:08 ` Greg KH
2010-09-21 21:38 ` Thomas Gleixner
2010-09-21 21:56 ` Greg KH
2010-09-21 22:21 ` Eric W. Biederman
2010-09-21 22:26 ` Thomas Gleixner
2010-09-14 18:38 ` [PATCH 5/5] uio: Statically allocate uio_class and use class .dev_attrs Eric W. Biederman
2010-09-17 20:37 ` Thomas Gleixner
2010-09-17 20:57 ` Hans J. Koch
2010-09-17 20:59 ` [PATCH 0/5] Uio enhancements Hans J. Koch
2010-09-20 7:19 ` [PATCH 0/5] uio hotplug support Eric W. Biederman
2010-09-20 7:21 ` [PATCH 1/5] uio: Simplify the lifetime logic of struct uio_device Eric W. Biederman
2010-09-20 7:21 ` Eric W. Biederman [this message]
2010-09-20 7:23 ` [PATCH 3/5] uio: Remove unused uio_info mmap method Eric W. Biederman
2010-09-20 7:23 ` [PATCH 4/5] libunload: A library to help remove open files Eric W. Biederman
2010-09-20 7:24 ` [PATCH 5/5] uio: Implement hotunplug support, using libunload Eric W. Biederman
2010-09-24 10:55 ` Hans J. Koch
2010-09-24 17:11 ` Eric W. Biederman
2010-09-25 2:06 ` [PATCH] uio: Fix accidentally changed return value in uio_read Eric W. Biederman
2010-09-24 10:45 ` [PATCH 0/5] uio hotplug support Hans J. Koch
2010-09-24 17:14 ` Eric W. Biederman
2010-09-24 17:31 ` Hans J. Koch
2010-09-24 18:38 ` Eric W. Biederman
2010-09-25 0:05 ` Eric W. Biederman
2010-09-25 0:33 ` Greg KH
2010-09-25 1:54 ` Eric W. Biederman
2010-09-26 19:21 ` Greg KH
2010-09-26 22:46 ` [PATCH 1/5] uio: Simplify the lifetime logic of struct uio_device Eric W. Biederman
2010-09-30 22:00 ` Hans J. Koch
2010-09-26 22:47 ` [PATCH 2/5] uio: Kill unused vma_count Eric W. Biederman
2010-09-26 22:48 ` [PATCH 3/5] uio: Remove unused uio_info mmap method Eric W. Biederman
2010-10-04 9:26 ` Hans J. Koch
2010-09-26 22:48 ` [PATCH 4/5] libunload: A library to help remove open files Eric W. Biederman
2010-10-04 9:56 ` Hans J. Koch
2010-09-26 22:49 ` [PATCH 5/5] uio: Implement hotunplug support, using libunload Eric W. Biederman
2010-10-04 10:47 ` Hans J. Koch
2010-10-04 12:34 ` Hans J. Koch
2010-10-04 18:19 ` Eric W. Biederman
2010-10-04 18:52 ` Hans J. Koch
2010-09-26 22:49 ` [PATCH 6/5] uio: Fix accidentally changed return value in uio_read Eric W. Biederman
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