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Subject[RFC][PATCH] Remove LINUX_2_2
On Thu, May 29, 2003 at 08:14:24AM -0700, Paul E. McKenney wrote:
> Rediffed for 2.5.70-mm1. Some added lines of code due to following
> the "#ifndef LINUX_2_2" in the sound system. The patch in the following
> email removes these #ifdefs on the off-chance that they are a
> holdover rather than the sound system's way of maintaining
> a single code base across all versions of Linux or some such.

This is the patch to remove the LINUX_2_2. This patch depends
on the earlier install_new_page.2.5.70-mm1-3.patch sent earlier.

Thanx, Paul


diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/control.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/control.c
--- linux-2.5.70-mm1.install_new_page/sound/core/control.c 2003-05-26 18:00:24.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/control.c 2003-05-28 22:41:51.000000000 -0700
@@ -931,9 +931,7 @@

static struct file_operations snd_ctl_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_ctl_read,
.open = snd_ctl_open,
.release = snd_ctl_release,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/hwdep.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/hwdep.c
--- linux-2.5.70-mm1.install_new_page/sound/core/hwdep.c 2003-05-26 18:00:21.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/hwdep.c 2003-05-28 22:41:51.000000000 -0700
@@ -292,9 +292,7 @@

static struct file_operations snd_hwdep_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.llseek = snd_hwdep_llseek,
.read = snd_hwdep_read,
.write = snd_hwdep_write,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/info.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/info.c
--- linux-2.5.70-mm1.install_new_page/sound/core/info.c 2003-05-26 18:00:59.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/info.c 2003-05-28 22:41:51.000000000 -0700
@@ -126,27 +126,6 @@
snd_info_entry_t *snd_oss_root = NULL;
#endif

-#ifdef LINUX_2_2
-static void snd_info_fill_inode(struct inode *inode, int fill)
-{
- if (fill)
- MOD_INC_USE_COUNT;
- else
- MOD_DEC_USE_COUNT;
-}
-
-static inline void snd_info_entry_prepare(struct proc_dir_entry *de)
-{
- de->fill_inode = snd_info_fill_inode;
-}
-
-void snd_remove_proc_entry(struct proc_dir_entry *parent,
- struct proc_dir_entry *de)
-{
- if (parent && de)
- proc_unregister(parent, de->low_ino);
-}
-#else
static inline void snd_info_entry_prepare(struct proc_dir_entry *de)
{
de->owner = THIS_MODULE;
@@ -158,7 +137,6 @@
if (de)
remove_proc_entry(de->name, parent);
}
-#endif

static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig)
{
@@ -520,9 +498,7 @@

static struct file_operations snd_info_entry_operations =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.llseek = snd_info_entry_llseek,
.read = snd_info_entry_read,
.write = snd_info_entry_write,
@@ -533,67 +509,22 @@
.release = snd_info_entry_release,
};

-#ifdef LINUX_2_2
-static struct inode_operations snd_info_entry_inode_operations =
-{
- &snd_info_entry_operations, /* default sound info directory file-ops */
-};
-
-static struct inode_operations snd_info_device_inode_operations =
-{
- &snd_fops, /* default sound info directory file-ops */
-};
-#endif /* LINUX_2_2 */
-
static int snd_info_card_readlink(struct dentry *dentry,
char *buffer, int buflen)
{
char *s = PDE(dentry->d_inode)->data;
-#ifndef LINUX_2_2
return vfs_readlink(dentry, buffer, buflen, s);
-#else
- int len;
-
- if (s == NULL)
- return -EIO;
- len = strlen(s);
- if (len > buflen)
- len = buflen;
- if (copy_to_user(buffer, s, len))
- return -EFAULT;
- return len;
-#endif
}

-#ifndef LINUX_2_2
static int snd_info_card_followlink(struct dentry *dentry,
struct nameidata *nd)
{
- char *s = PDE(dentry->d_inode)->data;
- return vfs_follow_link(nd, s);
-}
-#else
-static struct dentry *snd_info_card_followlink(struct dentry *dentry,
- struct dentry *base,
- unsigned int follow)
-{
char *s = PDE(dentry->d_inode)->data;
- return lookup_dentry(s, base, follow);
+ return vfs_follow_link(nd, s);
}
-#endif
-
-#ifdef LINUX_2_2
-static struct file_operations snd_info_card_link_operations =
-{
- NULL
-};
-#endif

struct inode_operations snd_info_card_link_inode_operations =
{
-#ifdef LINUX_2_2
- .default_file_ops = &snd_info_card_link_operations,
-#endif
.readlink = snd_info_card_readlink,
.follow_link = snd_info_card_followlink,
};
@@ -744,12 +675,8 @@
if (p == NULL)
return -ENOMEM;
p->data = s;
-#ifndef LINUX_2_2
p->owner = card->module;
p->proc_iops = &snd_info_card_link_inode_operations;
-#else
- p->ops = &snd_info_card_link_inode_operations;
-#endif
card->proc_root_link = p;
return 0;
}
@@ -1008,40 +935,11 @@
snd_magic_kfree(entry);
}

-#ifdef LINUX_2_2
-static void snd_info_device_fill_inode(struct inode *inode, int fill)
-{
- struct proc_dir_entry *de;
- snd_info_entry_t *entry;
-
- if (!fill) {
- MOD_DEC_USE_COUNT;
- return;
- }
- MOD_INC_USE_COUNT;
- de = PDE(inode);
- if (de == NULL)
- return;
- entry = (snd_info_entry_t *) de->data;
- if (entry == NULL)
- return;
- inode->i_gid = device_gid;
- inode->i_uid = device_uid;
- inode->i_rdev = MKDEV(entry->c.device.major, entry->c.device.minor);
-}
-
-static inline void snd_info_device_entry_prepare(struct proc_dir_entry *de, snd_info_entry_t *entry)
-{
- de->fill_inode = snd_info_device_fill_inode;
- de->ops = &snd_info_device_inode_operations;
-}
-#else
static inline void snd_info_device_entry_prepare(struct proc_dir_entry *de, snd_info_entry_t *entry)
{
de->rdev = mk_kdev(entry->c.device.major, entry->c.device.minor);
de->owner = THIS_MODULE;
}
-#endif /* LINUX_2_2 */

/*
* create a procfs device file
@@ -1119,15 +1017,9 @@
up(&info_mutex);
return -ENOMEM;
}
-#ifndef LINUX_2_2
p->owner = entry->module;
-#endif
if (!S_ISDIR(entry->mode)) {
-#ifndef LINUX_2_2
p->proc_fops = &snd_info_entry_operations;
-#else
- p->ops = &snd_info_entry_inode_operations;
-#endif
}
p->size = entry->size;
p->data = entry;
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/init.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/init.c
--- linux-2.5.70-mm1.install_new_page/sound/core/init.c 2003-05-26 18:00:25.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/init.c 2003-05-28 22:41:51.000000000 -0700
@@ -193,9 +193,7 @@
f_ops = &s_f_ops->f_ops;

memset(f_ops, 0, sizeof(*f_ops));
-#ifndef LINUX_2_2
f_ops->owner = file->f_op->owner;
-#endif
f_ops->release = file->f_op->release;
f_ops->poll = snd_disconnect_poll;

diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/oss/mixer_oss.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/oss/mixer_oss.c
--- linux-2.5.70-mm1.install_new_page/sound/core/oss/mixer_oss.c 2003-05-26 18:00:42.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/oss/mixer_oss.c 2003-05-28 22:41:51.000000000 -0700
@@ -376,9 +376,7 @@

static struct file_operations snd_mixer_oss_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.open = snd_mixer_oss_open,
.release = snd_mixer_oss_release,
.ioctl = snd_mixer_oss_ioctl,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/oss/pcm_oss.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/oss/pcm_oss.c
--- linux-2.5.70-mm1.install_new_page/sound/core/oss/pcm_oss.c 2003-05-26 18:00:56.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/oss/pcm_oss.c 2003-05-28 22:41:51.000000000 -0700
@@ -2148,9 +2148,7 @@

static struct file_operations snd_pcm_oss_f_reg =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_pcm_oss_read,
.write = snd_pcm_oss_write,
.open = snd_pcm_oss_open,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/pcm_native.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/pcm_native.c
--- linux-2.5.70-mm1.install_new_page/sound/core/pcm_native.c 2003-05-28 21:39:45.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/pcm_native.c 2003-05-28 22:46:38.000000000 -0700
@@ -60,11 +60,6 @@
static int snd_pcm_hw_refine_old_user(snd_pcm_substream_t * substream, struct sndrv_pcm_hw_params_old * _oparams);
static int snd_pcm_hw_params_old_user(snd_pcm_substream_t * substream, struct sndrv_pcm_hw_params_old * _oparams);

-#ifndef LINUX_2_2
-#define NOPAGE_OOM VM_FAULT_OOM
-#define NOPAGE_SIGBUS VM_FAULT_SIGBUS
-#endif
-
/*
*
*/
@@ -2687,21 +2682,13 @@
}

#ifndef VM_RESERVED
-#ifndef LINUX_2_2
static int snd_pcm_mmap_swapout(struct page * page, struct file * file)
-#else
-static int snd_pcm_mmap_swapout(struct vm_area_struct * area, struct page * page)
-#endif
{
return 0;
}
#endif

-#ifndef LINUX_2_2
static int snd_pcm_mmap_status_nopage(struct mm_struct *mm, struct vm_area_struct *area, unsigned long address, int write_access, pmd_t *pmd)
-#else
-static unsigned long snd_pcm_mmap_status_nopage(struct vm_area_struct *area, unsigned long address, int no_share)
-#endif
{
snd_pcm_substream_t *substream = (snd_pcm_substream_t *)area->vm_private_data;
snd_pcm_runtime_t *runtime;
@@ -2712,11 +2699,7 @@
runtime = substream->runtime;
page = virt_to_page(runtime->status);
get_page(page);
-#ifndef LINUX_2_2
return install_new_page(mm, area, address, write_access, pmd, page);
-#else
- return page_address(page);
-#endif
}

static struct vm_operations_struct snd_pcm_vm_ops_status =
@@ -2740,22 +2723,14 @@
if (size != PAGE_ALIGN(sizeof(snd_pcm_mmap_status_t)))
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_status;
-#ifndef LINUX_2_2
area->vm_private_data = substream;
-#else
- area->vm_private_data = (long)substream;
-#endif
#ifdef VM_RESERVED
area->vm_flags |= VM_RESERVED;
#endif
return 0;
}

-#ifndef LINUX_2_2
static int snd_pcm_mmap_control_nopage(struct mm_struct *mm, struct vm_area_struct *area, unsigned long address, int write_access, pmd_t *pmd)
-#else
-static unsigned long snd_pcm_mmap_control_nopage(struct vm_area_struct *area, unsigned long address, int no_share)
-#endif
{
snd_pcm_substream_t *substream = (snd_pcm_substream_t *)area->vm_private_data;
snd_pcm_runtime_t *runtime;
@@ -2766,11 +2741,7 @@
runtime = substream->runtime;
page = virt_to_page(runtime->control);
get_page(page);
-#ifndef LINUX_2_2
return install_new_page(mm, area, address, write_access, pmd, page);
-#else
- return page_address(page);
-#endif
}

static struct vm_operations_struct snd_pcm_vm_ops_control =
@@ -2794,11 +2765,7 @@
if (size != PAGE_ALIGN(sizeof(snd_pcm_mmap_control_t)))
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_control;
-#ifndef LINUX_2_2
area->vm_private_data = substream;
-#else
- area->vm_private_data = (long)substream;
-#endif
#ifdef VM_RESERVED
area->vm_flags |= VM_RESERVED;
#endif
@@ -2817,11 +2784,7 @@
atomic_dec(&substream->runtime->mmap_count);
}

-#ifndef LINUX_2_2
static int snd_pcm_mmap_data_nopage(struct mm_struct *mm, struct vm_area_struct *area, unsigned long address, int write_access, pmd_t *pmd)
-#else
-static unsigned long snd_pcm_mmap_data_nopage(struct vm_area_struct *area, unsigned long address, int no_share)
-#endif
{
snd_pcm_substream_t *substream = (snd_pcm_substream_t *)area->vm_private_data;
snd_pcm_runtime_t *runtime;
@@ -2852,11 +2815,7 @@
page = virt_to_page(vaddr);
}
get_page(page);
-#ifndef LINUX_2_2
return install_new_page(mm, area, address, write_access, pmd, page);
-#else
- return page_address(page);
-#endif
}

static struct vm_operations_struct snd_pcm_vm_ops_data =
@@ -2906,11 +2865,7 @@
return -EINVAL;

area->vm_ops = &snd_pcm_vm_ops_data;
-#ifndef LINUX_2_2
area->vm_private_data = substream;
-#else
- area->vm_private_data = (long)substream;
-#endif
#ifdef VM_RESERVED
area->vm_flags |= VM_RESERVED;
#endif
@@ -3040,9 +2995,7 @@
*/

static struct file_operations snd_pcm_f_ops_playback = {
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.write = snd_pcm_write,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 44)
.writev = snd_pcm_writev,
@@ -3056,9 +3009,7 @@
};

static struct file_operations snd_pcm_f_ops_capture = {
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_pcm_read,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 44)
.readv = snd_pcm_readv,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/rawmidi.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/rawmidi.c
--- linux-2.5.70-mm1.install_new_page/sound/core/rawmidi.c 2003-05-26 18:00:24.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/rawmidi.c 2003-05-28 22:41:51.000000000 -0700
@@ -1316,9 +1316,7 @@

static struct file_operations snd_rawmidi_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_rawmidi_read,
.write = snd_rawmidi_write,
.open = snd_rawmidi_open,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/seq/oss/seq_oss.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/oss/seq_oss.c
--- linux-2.5.70-mm1.install_new_page/sound/core/seq/oss/seq_oss.c 2003-05-26 18:00:46.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/oss/seq_oss.c 2003-05-28 22:41:51.000000000 -0700
@@ -194,9 +194,7 @@

static struct file_operations seq_oss_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = odev_read,
.write = odev_write,
.open = odev_open,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/seq/seq_clientmgr.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/seq_clientmgr.c
--- linux-2.5.70-mm1.install_new_page/sound/core/seq/seq_clientmgr.c 2003-05-26 18:00:24.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/seq_clientmgr.c 2003-05-28 22:41:51.000000000 -0700
@@ -2454,9 +2454,7 @@

static struct file_operations snd_seq_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_seq_read,
.write = snd_seq_write,
.open = snd_seq_open,
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/seq/seq_memory.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/seq_memory.c
--- linux-2.5.70-mm1.install_new_page/sound/core/seq/seq_memory.c 2003-05-26 18:00:23.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/seq/seq_memory.c 2003-05-28 22:41:51.000000000 -0700
@@ -235,18 +235,7 @@
while (pool->free == NULL && ! nonblock && ! pool->closing) {

spin_unlock(&pool->lock);
-#ifdef LINUX_2_2
- /* change semaphore to allow other clients
- to access device file */
- if (file)
- up(&semaphore_of(file));
-#endif
interruptible_sleep_on(&pool->output_sleep);
-#ifdef LINUX_2_2
- /* restore semaphore again */
- if (file)
- down(&semaphore_of(file));
-#endif
spin_lock(&pool->lock);
/* interrupted? */
if (signal_pending(current)) {
diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/sound.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/sound.c
--- linux-2.5.70-mm1.install_new_page/sound/core/sound.c 2003-05-26 18:00:43.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/sound.c 2003-05-28 22:41:51.000000000 -0700
@@ -157,9 +157,7 @@

struct file_operations snd_fops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.open = snd_open
};

diff -urN -X dontdiff linux-2.5.70-mm1.install_new_page/sound/core/timer.c linux-2.5.70-mm1.loseLINUX_2_2/sound/core/timer.c
--- linux-2.5.70-mm1.install_new_page/sound/core/timer.c 2003-05-26 18:00:41.000000000 -0700
+++ linux-2.5.70-mm1.loseLINUX_2_2/sound/core/timer.c 2003-05-28 22:41:51.000000000 -0700
@@ -1733,9 +1733,7 @@

static struct file_operations snd_timer_f_ops =
{
-#ifndef LINUX_2_2
.owner = THIS_MODULE,
-#endif
.read = snd_timer_user_read,
.open = snd_timer_user_open,
.release = snd_timer_user_release,
-
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