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[IA64] rename partial_page

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Jens has added a partial_page thing in splice whcih conflicts with the ia64
one.  Rename ia64 out of the way.  (ia64 chose poorly).

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
akpm@linux-foundation.org 2007-07-24 19:44:55 -07:00 committed by Tony Luck
parent a07ee86205
commit 3b74d18e54
6 changed files with 62 additions and 59 deletions
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6
arch/ia64/ia32/ia32_support.c
View file

@ -249,10 +249,10 @@ ia32_init (void)
#if PAGE_SHIFT > IA32_PAGE_SHIFT
{
extern struct kmem_cache *partial_page_cachep;
extern struct kmem_cache *ia64_partial_page_cachep;
partial_page_cachep = kmem_cache_create("partial_page_cache",
sizeof(struct partial_page),
ia64_partial_page_cachep = kmem_cache_create("ia64_partial_page_cache",
sizeof(struct ia64_partial_page),
0, SLAB_PANIC, NULL);
}
#endif

12
arch/ia64/ia32/ia32priv.h
View file

@ -25,8 +25,8 @@
* partially mapped pages provide precise accounting of which 4k sub pages
* are mapped and which ones are not, thereby improving IA-32 compatibility.
*/
struct partial_page {
struct partial_page *next; /* linked list, sorted by address */
struct ia64_partial_page {
struct ia64_partial_page *next; /* linked list, sorted by address */
struct rb_node pp_rb;
/* 64K is the largest "normal" page supported by ia64 ABI. So 4K*64
* should suffice.*/
@ -34,17 +34,17 @@ struct partial_page {
unsigned int base;
};
struct partial_page_list {
struct partial_page *pp_head; /* list head, points to the lowest
struct ia64_partial_page_list {
struct ia64_partial_page *pp_head; /* list head, points to the lowest
* addressed partial page */
struct rb_root ppl_rb;
struct partial_page *pp_hint; /* pp_hint->next is the last
struct ia64_partial_page *pp_hint; /* pp_hint->next is the last
* accessed partial page */
atomic_t pp_count; /* reference count */
};
#if PAGE_SHIFT > IA32_PAGE_SHIFT
struct partial_page_list* ia32_init_pp_list (void);
struct ia64_partial_page_list* ia32_init_pp_list (void);
#else
# define ia32_init_pp_list() 0
#endif

81
arch/ia64/ia32/sys_ia32.c
View file

@ -253,17 +253,17 @@ mmap_subpage (struct file *file, unsigned long start, unsigned long end, int pro
return ret;
}
/* SLAB cache for partial_page structures */
struct kmem_cache *partial_page_cachep;
/* SLAB cache for ia64_partial_page structures */
struct kmem_cache *ia64_partial_page_cachep;
/*
* init partial_page_list.
* init ia64_partial_page_list.
* return 0 means kmalloc fail.
*/
struct partial_page_list*
struct ia64_partial_page_list*
ia32_init_pp_list(void)
{
struct partial_page_list *p;
struct ia64_partial_page_list *p;
if ((p = kmalloc(sizeof(*p), GFP_KERNEL)) == NULL)
return p;
@ -280,12 +280,12 @@ ia32_init_pp_list(void)
* Else, return 0 and provide @pprev, @rb_link, @rb_parent to
* be used by later __ia32_insert_pp().
*/
static struct partial_page *
__ia32_find_pp(struct partial_page_list *ppl, unsigned int start,
struct partial_page **pprev, struct rb_node ***rb_link,
static struct ia64_partial_page *
__ia32_find_pp(struct ia64_partial_page_list *ppl, unsigned int start,
struct ia64_partial_page **pprev, struct rb_node ***rb_link,
struct rb_node **rb_parent)
{
struct partial_page *pp;
struct ia64_partial_page *pp;
struct rb_node **__rb_link, *__rb_parent, *rb_prev;
pp = ppl->pp_hint;
@ -297,7 +297,7 @@ __ia32_find_pp(struct partial_page_list *ppl, unsigned int start,
while (*__rb_link) {
__rb_parent = *__rb_link;
pp = rb_entry(__rb_parent, struct partial_page, pp_rb);
pp = rb_entry(__rb_parent, struct ia64_partial_page, pp_rb);
if (pp->base == start) {
ppl->pp_hint = pp;
@ -314,7 +314,7 @@ __ia32_find_pp(struct partial_page_list *ppl, unsigned int start,
*rb_parent = __rb_parent;
*pprev = NULL;
if (rb_prev)
*pprev = rb_entry(rb_prev, struct partial_page, pp_rb);
*pprev = rb_entry(rb_prev, struct ia64_partial_page, pp_rb);
return NULL;
}
@ -322,9 +322,9 @@ __ia32_find_pp(struct partial_page_list *ppl, unsigned int start,
* insert @pp into @ppl.
*/
static void
__ia32_insert_pp(struct partial_page_list *ppl, struct partial_page *pp,
struct partial_page *prev, struct rb_node **rb_link,
struct rb_node *rb_parent)
__ia32_insert_pp(struct ia64_partial_page_list *ppl,
struct ia64_partial_page *pp, struct ia64_partial_page *prev,
struct rb_node **rb_link, struct rb_node *rb_parent)
{
/* link list */
if (prev) {
@ -334,7 +334,7 @@ __ia32_insert_pp(struct partial_page_list *ppl, struct partial_page *pp,
ppl->pp_head = pp;
if (rb_parent)
pp->next = rb_entry(rb_parent,
struct partial_page, pp_rb);
struct ia64_partial_page, pp_rb);
else
pp->next = NULL;
}
@ -350,8 +350,8 @@ __ia32_insert_pp(struct partial_page_list *ppl, struct partial_page *pp,
* delete @pp from partial page list @ppl.
*/
static void
__ia32_delete_pp(struct partial_page_list *ppl, struct partial_page *pp,
struct partial_page *prev)
__ia32_delete_pp(struct ia64_partial_page_list *ppl,
struct ia64_partial_page *pp, struct ia64_partial_page *prev)
{
if (prev) {
prev->next = pp->next;
@ -363,15 +363,15 @@ __ia32_delete_pp(struct partial_page_list *ppl, struct partial_page *pp,
ppl->pp_hint = pp->next;
}
rb_erase(&pp->pp_rb, &ppl->ppl_rb);
kmem_cache_free(partial_page_cachep, pp);
kmem_cache_free(ia64_partial_page_cachep, pp);
}
static struct partial_page *
__pp_prev(struct partial_page *pp)
static struct ia64_partial_page *
__pp_prev(struct ia64_partial_page *pp)
{
struct rb_node *prev = rb_prev(&pp->pp_rb);
if (prev)
return rb_entry(prev, struct partial_page, pp_rb);
return rb_entry(prev, struct ia64_partial_page, pp_rb);
else
return NULL;
}
@ -383,7 +383,7 @@ __pp_prev(struct partial_page *pp)
static void
__ia32_delete_pp_range(unsigned int start, unsigned int end)
{
struct partial_page *pp, *prev;
struct ia64_partial_page *pp, *prev;
struct rb_node **rb_link, *rb_parent;
if (start >= end)
@ -401,7 +401,7 @@ __ia32_delete_pp_range(unsigned int start, unsigned int end)
}
while (pp && pp->base < end) {
struct partial_page *tmp = pp->next;
struct ia64_partial_page *tmp = pp->next;
__ia32_delete_pp(current->thread.ppl, pp, prev);
pp = tmp;
}
@ -414,7 +414,7 @@ __ia32_delete_pp_range(unsigned int start, unsigned int end)
static int
__ia32_set_pp(unsigned int start, unsigned int end, int flags)
{
struct partial_page *pp, *prev;
struct ia64_partial_page *pp, *prev;
struct rb_node ** rb_link, *rb_parent;
unsigned int pstart, start_bit, end_bit, i;
@ -450,8 +450,8 @@ __ia32_set_pp(unsigned int start, unsigned int end, int flags)
return 0;
}
/* new a partial_page */
pp = kmem_cache_alloc(partial_page_cachep, GFP_KERNEL);
/* new a ia64_partial_page */
pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
if (!pp)
return -ENOMEM;
pp->base = pstart;
@ -504,7 +504,7 @@ ia32_set_pp(unsigned int start, unsigned int end, int flags)
static int
__ia32_unset_pp(unsigned int start, unsigned int end)
{
struct partial_page *pp, *prev;
struct ia64_partial_page *pp, *prev;
struct rb_node ** rb_link, *rb_parent;
unsigned int pstart, start_bit, end_bit, i;
struct vm_area_struct *vma;
@ -532,8 +532,8 @@ __ia32_unset_pp(unsigned int start, unsigned int end)
return -ENOMEM;
}
/* new a partial_page */
pp = kmem_cache_alloc(partial_page_cachep, GFP_KERNEL);
/* new a ia64_partial_page */
pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
if (!pp)
return -ENOMEM;
pp->base = pstart;
@ -605,7 +605,7 @@ ia32_unset_pp(unsigned int *startp, unsigned int *endp)
static int
__ia32_compare_pp(unsigned int start, unsigned int end)
{
struct partial_page *pp, *prev;
struct ia64_partial_page *pp, *prev;
struct rb_node ** rb_link, *rb_parent;
unsigned int pstart, start_bit, end_bit, size;
unsigned int first_bit, next_zero_bit; /* the first range in bitmap */
@ -682,13 +682,13 @@ ia32_compare_pp(unsigned int *startp, unsigned int *endp)
}
static void
__ia32_drop_pp_list(struct partial_page_list *ppl)
__ia32_drop_pp_list(struct ia64_partial_page_list *ppl)
{
struct partial_page *pp = ppl->pp_head;
struct ia64_partial_page *pp = ppl->pp_head;
while (pp) {
struct partial_page *next = pp->next;
kmem_cache_free(partial_page_cachep, pp);
struct ia64_partial_page *next = pp->next;
kmem_cache_free(ia64_partial_page_cachep, pp);
pp = next;
}
@ -696,9 +696,9 @@ __ia32_drop_pp_list(struct partial_page_list *ppl)
}
void
ia32_drop_partial_page_list(struct task_struct *task)
ia32_drop_ia64_partial_page_list(struct task_struct *task)
{
struct partial_page_list* ppl = task->thread.ppl;
struct ia64_partial_page_list* ppl = task->thread.ppl;
if (ppl && atomic_dec_and_test(&ppl->pp_count))
__ia32_drop_pp_list(ppl);
@ -708,9 +708,9 @@ ia32_drop_partial_page_list(struct task_struct *task)
* Copy current->thread.ppl to ppl (already initialized).
*/
static int
__ia32_copy_pp_list(struct partial_page_list *ppl)
__ia32_copy_pp_list(struct ia64_partial_page_list *ppl)
{
struct partial_page *pp, *tmp, *prev;
struct ia64_partial_page *pp, *tmp, *prev;
struct rb_node **rb_link, *rb_parent;
ppl->pp_head = NULL;
@ -721,7 +721,7 @@ __ia32_copy_pp_list(struct partial_page_list *ppl)
prev = NULL;
for (pp = current->thread.ppl->pp_head; pp; pp = pp->next) {
tmp = kmem_cache_alloc(partial_page_cachep, GFP_KERNEL);
tmp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
if (!tmp)
return -ENOMEM;
*tmp = *pp;
@ -734,7 +734,8 @@ __ia32_copy_pp_list(struct partial_page_list *ppl)
}
int
ia32_copy_partial_page_list(struct task_struct *p, unsigned long clone_flags)
ia32_copy_ia64_partial_page_list(struct task_struct *p,
unsigned long clone_flags)
{
int retval = 0;

7
arch/ia64/kernel/process.c
View file

@ -499,7 +499,8 @@ copy_thread (int nr, unsigned long clone_flags,
/* Copy partially mapped page list */
if (!retval)
retval = ia32_copy_partial_page_list(p, clone_flags);
retval = ia32_copy_ia64_partial_page_list(p,
clone_flags);
}
#endif
@ -728,7 +729,7 @@ flush_thread (void)
ia64_drop_fpu(current);
#ifdef CONFIG_IA32_SUPPORT
if (IS_IA32_PROCESS(task_pt_regs(current))) {
ia32_drop_partial_page_list(current);
ia32_drop_ia64_partial_page_list(current);
current->thread.task_size = IA32_PAGE_OFFSET;
set_fs(USER_DS);
}
@ -754,7 +755,7 @@ exit_thread (void)
pfm_release_debug_registers(current);
#endif
if (IS_IA32_PROCESS(task_pt_regs(current)))
ia32_drop_partial_page_list(current);
ia32_drop_ia64_partial_page_list(current);
}
unsigned long

9
include/asm-ia64/ia32.h
View file

@ -27,11 +27,12 @@ extern int ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs)
extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs);
#if PAGE_SHIFT > IA32_PAGE_SHIFT
extern int ia32_copy_partial_page_list (struct task_struct *, unsigned long);
extern void ia32_drop_partial_page_list (struct task_struct *);
extern int ia32_copy_ia64_partial_page_list(struct task_struct *,
unsigned long);
extern void ia32_drop_ia64_partial_page_list(struct task_struct *);
#else
# define ia32_copy_partial_page_list(a1, a2) 0
# define ia32_drop_partial_page_list(a1) do { ; } while (0)
# define ia32_copy_ia64_partial_page_list(a1, a2) 0
# define ia32_drop_ia64_partial_page_list(a1) do { ; } while (0)
#endif
#endif /* !__ASSEMBLY__ */

4
include/asm-ia64/processor.h
View file

@ -220,7 +220,7 @@ struct desc_struct {
#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
struct partial_page_list;
struct ia64_partial_page_list;
#endif
struct thread_struct {
@ -242,7 +242,7 @@ struct thread_struct {
__u64 fdr; /* IA32 fp except. data reg */
__u64 old_k1; /* old value of ar.k1 */
__u64 old_iob; /* old IOBase value */
struct partial_page_list *ppl; /* partial page list for 4K page size issue */
struct ia64_partial_page_list *ppl; /* partial page list for 4K page size issue */
/* cached TLS descriptors. */
struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];