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WSL2-Linux-Kernel
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sem2mutex: drivers/char/drm/ 

From: Arjan van de Ven <arjan@infradead.org>

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie 2006-02-02 19:37:46 +11:00 коммит произвёл Dave Airlie
Родитель ce60fe02fb
Коммит 30e2fb1881
11 изменённых файлов: 126 добавлений и 125 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

5
drivers/char/drm/drmP.h
Просмотреть файл

@ -57,6 +57,7 @@
#include <linux/smp_lock.h> /* For (un)lock_kernel */
#include <linux/mm.h>
#include <linux/cdev.h>
#include <linux/mutex.h>
#if defined(__alpha__) || defined(__powerpc__)
#include <asm/pgtable.h> /* For pte_wrprotect */
#endif
@ -623,7 +624,7 @@ typedef struct drm_device {
/** \name Locks */
/*@{ */
spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
struct semaphore struct_sem; /**< For others */
struct mutex struct_mutex; /**< For others */
/*@} */
/** \name Usage Counters */
@ -658,7 +659,7 @@ typedef struct drm_device {
/*@{ */
drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
int ctx_count; /**< Number of context handles */
struct semaphore ctxlist_sem; /**< For ctxlist */
struct mutex ctxlist_mutex; /**< For ctxlist */
drm_map_t **context_sareas; /**< per-context SAREA's */
int max_context;

20
drivers/char/drm/drm_auth.c
Просмотреть файл

@ -56,7 +56,7 @@ static int drm_hash_magic(drm_magic_t magic)
* \param magic magic number.
*
* Searches in drm_device::magiclist within all files with the same hash key
* the one with matching magic number, while holding the drm_device::struct_sem
* the one with matching magic number, while holding the drm_device::struct_mutex
* lock.
*/
static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
@ -65,14 +65,14 @@ static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
drm_magic_entry_t *pt;
int hash = drm_hash_magic(magic);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (pt = dev->magiclist[hash].head; pt; pt = pt->next) {
if (pt->magic == magic) {
retval = pt->priv;
break;
}
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return retval;
}
@ -85,7 +85,7 @@ static drm_file_t *drm_find_file(drm_device_t * dev, drm_magic_t magic)
*
* Creates a drm_magic_entry structure and appends to the linked list
* associated the magic number hash key in drm_device::magiclist, while holding
* the drm_device::struct_sem lock.
* the drm_device::struct_mutex lock.
*/
static int drm_add_magic(drm_device_t * dev, drm_file_t * priv,
drm_magic_t magic)
@ -104,7 +104,7 @@ static int drm_add_magic(drm_device_t * dev, drm_file_t * priv,
entry->priv = priv;
entry->next = NULL;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (dev->magiclist[hash].tail) {
dev->magiclist[hash].tail->next = entry;
dev->magiclist[hash].tail = entry;
@ -112,7 +112,7 @@ static int drm_add_magic(drm_device_t * dev, drm_file_t * priv,
dev->magiclist[hash].head = entry;
dev->magiclist[hash].tail = entry;
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return 0;
}
@ -124,7 +124,7 @@ static int drm_add_magic(drm_device_t * dev, drm_file_t * priv,
* \param magic magic number.
*
* Searches and unlinks the entry in drm_device::magiclist with the magic
* number hash key, while holding the drm_device::struct_sem lock.
* number hash key, while holding the drm_device::struct_mutex lock.
*/
static int drm_remove_magic(drm_device_t * dev, drm_magic_t magic)
{
@ -135,7 +135,7 @@ static int drm_remove_magic(drm_device_t * dev, drm_magic_t magic)
DRM_DEBUG("%d\n", magic);
hash = drm_hash_magic(magic);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (pt = dev->magiclist[hash].head; pt; prev = pt, pt = pt->next) {
if (pt->magic == magic) {
if (dev->magiclist[hash].head == pt) {
@ -147,11 +147,11 @@ static int drm_remove_magic(drm_device_t * dev, drm_magic_t magic)
if (prev) {
prev->next = pt->next;
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return 0;
}
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);

80
drivers/char/drm/drm_bufs.c
Просмотреть файл

@ -255,14 +255,14 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
memset(list, 0, sizeof(*list));
list->map = map;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
list_add(&list->head, &dev->maplist->head);
/* Assign a 32-bit handle */
/* We do it here so that dev->struct_sem protects the increment */
/* We do it here so that dev->struct_mutex protects the increment */
list->user_token = HandleID(map->type == _DRM_SHM
? (unsigned long)map->handle
: map->offset, dev);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
*maplist = list;
return 0;
@ -392,9 +392,9 @@ int drm_rmmap(drm_device_t *dev, drm_local_map_t *map)
{
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm_rmmap_locked(dev, map);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -423,7 +423,7 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
return -EFAULT;
}
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
list_for_each(list, &dev->maplist->head) {
drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
@ -439,7 +439,7 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
* find anything.
*/
if (list == (&dev->maplist->head)) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
@ -448,13 +448,13 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
/* Register and framebuffer maps are permanent */
if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return 0;
}
ret = drm_rmmap_locked(dev, map);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -566,16 +566,16 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
@ -583,7 +583,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -616,7 +616,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -638,7 +638,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -656,7 +656,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
@ -722,16 +722,16 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
@ -739,7 +739,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -750,7 +750,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
if (!entry->seglist) {
drm_free(entry->buflist,
count * sizeof(*entry->buflist), DRM_MEM_BUFS);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -766,7 +766,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
count * sizeof(*entry->buflist), DRM_MEM_BUFS);
drm_free(entry->seglist,
count * sizeof(*entry->seglist), DRM_MEM_SEGS);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -790,7 +790,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
drm_free(temp_pagelist,
(dma->page_count + (count << page_order))
* sizeof(*dma->pagelist), DRM_MEM_PAGES);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -831,7 +831,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
(count << page_order))
* sizeof(*dma->pagelist),
DRM_MEM_PAGES);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -853,7 +853,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
drm_free(temp_pagelist,
(dma->page_count + (count << page_order))
* sizeof(*dma->pagelist), DRM_MEM_PAGES);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -878,7 +878,7 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
dma->page_count += entry->seg_count << page_order;
dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
@ -948,16 +948,16 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
@ -965,7 +965,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -999,7 +999,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -1022,7 +1022,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -1040,7 +1040,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
@ -1110,16 +1110,16 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
@ -1127,7 +1127,7 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -1160,7 +1160,7 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -1182,7 +1182,7 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
@ -1200,7 +1200,7 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;

52
drivers/char/drm/drm_context.c
Просмотреть файл

@ -53,7 +53,7 @@
* \param ctx_handle context handle.
*
* Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry
* in drm_device::context_sareas, while holding the drm_device::struct_sem
* in drm_device::context_sareas, while holding the drm_device::struct_mutex
* lock.
*/
void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle)
@ -64,10 +64,10 @@ void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle)
goto failed;
if (ctx_handle < DRM_MAX_CTXBITMAP) {
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
clear_bit(ctx_handle, dev->ctx_bitmap);
dev->context_sareas[ctx_handle] = NULL;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return;
}
failed:
@ -83,7 +83,7 @@ void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle)
*
* Find the first zero bit in drm_device::ctx_bitmap and (re)allocates
* drm_device::context_sareas to accommodate the new entry while holding the
* drm_device::struct_sem lock.
* drm_device::struct_mutex lock.
*/
static int drm_ctxbitmap_next(drm_device_t * dev)
{
@ -92,7 +92,7 @@ static int drm_ctxbitmap_next(drm_device_t * dev)
if (!dev->ctx_bitmap)
return -1;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
bit = find_first_zero_bit(dev->ctx_bitmap, DRM_MAX_CTXBITMAP);
if (bit < DRM_MAX_CTXBITMAP) {
set_bit(bit, dev->ctx_bitmap);
@ -113,7 +113,7 @@ static int drm_ctxbitmap_next(drm_device_t * dev)
DRM_MEM_MAPS);
if (!ctx_sareas) {
clear_bit(bit, dev->ctx_bitmap);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -1;
}
dev->context_sareas = ctx_sareas;
@ -126,16 +126,16 @@ static int drm_ctxbitmap_next(drm_device_t * dev)
DRM_MEM_MAPS);
if (!dev->context_sareas) {
clear_bit(bit, dev->ctx_bitmap);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -1;
}
dev->context_sareas[bit] = NULL;
}
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return bit;
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -1;
}
@ -145,24 +145,24 @@ static int drm_ctxbitmap_next(drm_device_t * dev)
* \param dev DRM device.
*
* Allocates and initialize drm_device::ctx_bitmap and drm_device::context_sareas, while holding
* the drm_device::struct_sem lock.
* the drm_device::struct_mutex lock.
*/
int drm_ctxbitmap_init(drm_device_t * dev)
{
int i;
int temp;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
dev->ctx_bitmap = (unsigned long *)drm_alloc(PAGE_SIZE,
DRM_MEM_CTXBITMAP);
if (dev->ctx_bitmap == NULL) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -ENOMEM;
}
memset((void *)dev->ctx_bitmap, 0, PAGE_SIZE);
dev->context_sareas = NULL;
dev->max_context = -1;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
temp = drm_ctxbitmap_next(dev);
@ -178,17 +178,17 @@ int drm_ctxbitmap_init(drm_device_t * dev)
* \param dev DRM device.
*
* Frees drm_device::ctx_bitmap and drm_device::context_sareas, while holding
* the drm_device::struct_sem lock.
* the drm_device::struct_mutex lock.
*/
void drm_ctxbitmap_cleanup(drm_device_t * dev)
{
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (dev->context_sareas)
drm_free(dev->context_sareas,
sizeof(*dev->context_sareas) *
dev->max_context, DRM_MEM_MAPS);
drm_free((void *)dev->ctx_bitmap, PAGE_SIZE, DRM_MEM_CTXBITMAP);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
}
/*@}*/
@ -222,15 +222,15 @@ int drm_getsareactx(struct inode *inode, struct file *filp,
if (copy_from_user(&request, argp, sizeof(request)))
return -EFAULT;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (dev->max_context < 0
|| request.ctx_id >= (unsigned)dev->max_context) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
map = dev->context_sareas[request.ctx_id];
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
request.handle = NULL;
list_for_each_entry(_entry, &dev->maplist->head, head) {
@ -274,7 +274,7 @@ int drm_setsareactx(struct inode *inode, struct file *filp,
(drm_ctx_priv_map_t __user *) arg, sizeof(request)))
return -EFAULT;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
list_for_each(list, &dev->maplist->head) {
r_list = list_entry(list, drm_map_list_t, head);
if (r_list->map
@ -282,7 +282,7 @@ int drm_setsareactx(struct inode *inode, struct file *filp,
goto found;
}
bad:
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
found:
@ -294,7 +294,7 @@ int drm_setsareactx(struct inode *inode, struct file *filp,
if (request.ctx_id >= (unsigned)dev->max_context)
goto bad;
dev->context_sareas[request.ctx_id] = map;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return 0;
}
@ -448,10 +448,10 @@ int drm_addctx(struct inode *inode, struct file *filp,
ctx_entry->handle = ctx.handle;
ctx_entry->tag = priv;
down(&dev->ctxlist_sem);
mutex_lock(&dev->ctxlist_mutex);
list_add(&ctx_entry->head, &dev->ctxlist->head);
++dev->ctx_count;
up(&dev->ctxlist_sem);
mutex_unlock(&dev->ctxlist_mutex);
if (copy_to_user(argp, &ctx, sizeof(ctx)))
return -EFAULT;
@ -574,7 +574,7 @@ int drm_rmctx(struct inode *inode, struct file *filp,
drm_ctxbitmap_free(dev, ctx.handle);
}
down(&dev->ctxlist_sem);
mutex_lock(&dev->ctxlist_mutex);
if (!list_empty(&dev->ctxlist->head)) {
drm_ctx_list_t *pos, *n;
@ -586,7 +586,7 @@ int drm_rmctx(struct inode *inode, struct file *filp,
}
}
}
up(&dev->ctxlist_sem);
mutex_unlock(&dev->ctxlist_mutex);
return 0;
}

4
drivers/char/drm/drm_drv.c
Просмотреть файл

@ -151,7 +151,7 @@ int drm_lastclose(drm_device_t * dev)
if (dev->irq_enabled)
drm_irq_uninstall(dev);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
del_timer(&dev->timer);
/* Clear pid list */
@ -231,7 +231,7 @@ int drm_lastclose(drm_device_t * dev)
dev->lock.filp = NULL;
wake_up_interruptible(&dev->lock.lock_queue);
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("lastclose completed\n");
return 0;

12
drivers/char/drm/drm_fops.c
Просмотреть файл

@ -262,7 +262,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
goto out_free;
}
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (!dev->file_last) {
priv->next = NULL;
priv->prev = NULL;
@ -276,7 +276,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
dev->file_last->next = priv;
dev->file_last = priv;
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
#ifdef __alpha__
/*
@ -413,7 +413,7 @@ int drm_release(struct inode *inode, struct file *filp)
drm_fasync(-1, filp, 0);
down(&dev->ctxlist_sem);
mutex_lock(&dev->ctxlist_mutex);
if (dev->ctxlist && (!list_empty(&dev->ctxlist->head))) {
drm_ctx_list_t *pos, *n;
@ -432,9 +432,9 @@ int drm_release(struct inode *inode, struct file *filp)
}
}
}
up(&dev->ctxlist_sem);
mutex_unlock(&dev->ctxlist_mutex);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (priv->remove_auth_on_close == 1) {
drm_file_t *temp = dev->file_first;
while (temp) {
@ -452,7 +452,7 @@ int drm_release(struct inode *inode, struct file *filp)
} else {
dev->file_last = priv->prev;
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
if (dev->driver->postclose)
dev->driver->postclose(dev, priv);

18
drivers/char/drm/drm_ioctl.c
Просмотреть файл

@ -194,9 +194,9 @@ int drm_getmap(struct inode *inode, struct file *filp,
return -EFAULT;
idx = map.offset;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
if (idx < 0) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
@ -209,7 +209,7 @@ int drm_getmap(struct inode *inode, struct file *filp,
i++;
}
if (!r_list || !r_list->map) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
@ -219,7 +219,7 @@ int drm_getmap(struct inode *inode, struct file *filp,
map.flags = r_list->map->flags;
map.handle = (void *)(unsigned long)r_list->user_token;
map.mtrr = r_list->map->mtrr;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
if (copy_to_user(argp, &map, sizeof(map)))
return -EFAULT;
@ -253,11 +253,11 @@ int drm_getclient(struct inode *inode, struct file *filp,
if (copy_from_user(&client, argp, sizeof(client)))
return -EFAULT;
idx = client.idx;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next) ;
if (!pt) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
client.auth = pt->authenticated;
@ -265,7 +265,7 @@ int drm_getclient(struct inode *inode, struct file *filp,
client.uid = pt->uid;
client.magic = pt->magic;
client.iocs = pt->ioctl_count;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
if (copy_to_user(argp, &client, sizeof(client)))
return -EFAULT;
@ -292,7 +292,7 @@ int drm_getstats(struct inode *inode, struct file *filp,
memset(&stats, 0, sizeof(stats));
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (i = 0; i < dev->counters; i++) {
if (dev->types[i] == _DRM_STAT_LOCK)
@ -305,7 +305,7 @@ int drm_getstats(struct inode *inode, struct file *filp,
stats.count = dev->counters;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
if (copy_to_user((drm_stats_t __user *) arg, &stats, sizeof(stats)))
return -EFAULT;

16
drivers/char/drm/drm_irq.c
Просмотреть файл

@ -98,20 +98,20 @@ static int drm_irq_install(drm_device_t * dev)
if (dev->irq == 0)
return -EINVAL;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
/* Driver must have been initialized */
if (!dev->dev_private) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
if (dev->irq_enabled) {
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return -EBUSY;
}
dev->irq_enabled = 1;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("%s: irq=%d\n", __FUNCTION__, dev->irq);
@ -135,9 +135,9 @@ static int drm_irq_install(drm_device_t * dev)
ret = request_irq(dev->irq, dev->driver->irq_handler,
sh_flags, dev->devname, dev);
if (ret < 0) {
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
dev->irq_enabled = 0;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -161,10 +161,10 @@ int drm_irq_uninstall(drm_device_t * dev)
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return -EINVAL;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
irq_enabled = dev->irq_enabled;
dev->irq_enabled = 0;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
if (!irq_enabled)
return -EINVAL;

28
drivers/char/drm/drm_proc.c
Просмотреть файл

@ -258,7 +258,7 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
}
/**
* Simply calls _vm_info() while holding the drm_device::struct_sem lock.
* Simply calls _vm_info() while holding the drm_device::struct_mutex lock.
*/
static int drm_vm_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
@ -266,9 +266,9 @@ static int drm_vm_info(char *buf, char **start, off_t offset, int request,
drm_device_t *dev = (drm_device_t *) data;
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm__vm_info(buf, start, offset, request, eof, data);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -331,7 +331,7 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
}
/**
* Simply calls _queues_info() while holding the drm_device::struct_sem lock.
* Simply calls _queues_info() while holding the drm_device::struct_mutex lock.
*/
static int drm_queues_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
@ -339,9 +339,9 @@ static int drm_queues_info(char *buf, char **start, off_t offset, int request,
drm_device_t *dev = (drm_device_t *) data;
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm__queues_info(buf, start, offset, request, eof, data);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -403,7 +403,7 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
}
/**
* Simply calls _bufs_info() while holding the drm_device::struct_sem lock.
* Simply calls _bufs_info() while holding the drm_device::struct_mutex lock.
*/
static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
@ -411,9 +411,9 @@ static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
drm_device_t *dev = (drm_device_t *) data;
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm__bufs_info(buf, start, offset, request, eof, data);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -459,7 +459,7 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
}
/**
* Simply calls _clients_info() while holding the drm_device::struct_sem lock.
* Simply calls _clients_info() while holding the drm_device::struct_mutex lock.
*/
static int drm_clients_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
@ -467,9 +467,9 @@ static int drm_clients_info(char *buf, char **start, off_t offset,
drm_device_t *dev = (drm_device_t *) data;
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm__clients_info(buf, start, offset, request, eof, data);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
@ -540,9 +540,9 @@ static int drm_vma_info(char *buf, char **start, off_t offset, int request,
drm_device_t *dev = (drm_device_t *) data;
int ret;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
ret = drm__vma_info(buf, start, offset, request, eof, data);
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
return ret;
}
#endif

4
drivers/char/drm/drm_stub.c
Просмотреть файл

@ -61,8 +61,8 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
spin_lock_init(&dev->count_lock);
init_timer(&dev->timer);
sema_init(&dev->struct_sem, 1);
sema_init(&dev->ctxlist_sem, 1);
mutex_init(&dev->struct_mutex);
mutex_init(&dev->ctxlist_mutex);
dev->pdev = pdev;

12
drivers/char/drm/drm_vm.c
Просмотреть файл

@ -188,7 +188,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
map = vma->vm_private_data;
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (pt = dev->vmalist, prev = NULL; pt; pt = next) {
next = pt->next;
if (pt->vma->vm_private_data == map)
@ -248,7 +248,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
}
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
}
/**
@ -404,12 +404,12 @@ static void drm_vm_open(struct vm_area_struct *vma)
vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS);
if (vma_entry) {
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
vma_entry->vma = vma;
vma_entry->next = dev->vmalist;
vma_entry->pid = current->pid;
dev->vmalist = vma_entry;
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
}
}
@ -431,7 +431,7 @@ static void drm_vm_close(struct vm_area_struct *vma)
vma->vm_start, vma->vm_end - vma->vm_start);
atomic_dec(&dev->vma_count);
down(&dev->struct_sem);
mutex_lock(&dev->struct_mutex);
for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
if (pt->vma == vma) {
if (prev) {
@ -443,7 +443,7 @@ static void drm_vm_close(struct vm_area_struct *vma)
break;
}
}
up(&dev->struct_sem);
mutex_unlock(&dev->struct_mutex);
}
/**