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Merge branch 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull mm gup cleanup from Ingo Molnar:
 "This removes the ugly get-user-pages API hack, now that all upstream
  code has been migrated to it"

("ugly" is putting it mildly. But it worked.. - Linus)

* 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  mm/gup: Remove the macro overload API migration helpers from the get_user*() APIs
Este commit está contenido en:
Linus Torvalds
2016-04-14 19:31:34 -07:00
padre 63a1281b65 c12d2da56d
commit a1f983174d
Se han modificado 3 ficheros con 17 adiciones y 143 borrados
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52
mm/gup.c
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@@ -1,4 +1,3 @@
#define __DISABLE_GUP_DEPRECATED 1
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/err.h>
@@ -839,7 +838,7 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk,
* if (locked)
* up_read(&mm->mmap_sem);
*/
long get_user_pages_locked6(unsigned long start, unsigned long nr_pages,
long get_user_pages_locked(unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages,
int *locked)
{
@@ -847,7 +846,7 @@ long get_user_pages_locked6(unsigned long start, unsigned long nr_pages,
write, force, pages, NULL, locked, true,
FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages_locked6);
EXPORT_SYMBOL(get_user_pages_locked);
/*
* Same as get_user_pages_unlocked(...., FOLL_TOUCH) but it allows to
@@ -892,13 +891,13 @@ EXPORT_SYMBOL(__get_user_pages_unlocked);
* or if "force" shall be set to 1 (get_user_pages_fast misses the
* "force" parameter).
*/
long get_user_pages_unlocked5(unsigned long start, unsigned long nr_pages,
long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages)
{
return __get_user_pages_unlocked(current, current->mm, start, nr_pages,
write, force, pages, FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages_unlocked5);
EXPORT_SYMBOL(get_user_pages_unlocked);
/*
* get_user_pages_remote() - pin user pages in memory
@@ -972,7 +971,7 @@ EXPORT_SYMBOL(get_user_pages_remote);
* and mm being operated on are the current task's. We also
* obviously don't pass FOLL_REMOTE in here.
*/
long get_user_pages6(unsigned long start, unsigned long nr_pages,
long get_user_pages(unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages,
struct vm_area_struct **vmas)
{
@@ -980,7 +979,7 @@ long get_user_pages6(unsigned long start, unsigned long nr_pages,
write, force, pages, vmas, NULL, false,
FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages6);
EXPORT_SYMBOL(get_user_pages);
/**
* populate_vma_page_range() - populate a range of pages in the vma.
@@ -1491,7 +1490,6 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
int get_user_pages_fast(unsigned long start, int nr_pages, int write,
struct page **pages)
{
struct mm_struct *mm = current->mm;
int nr, ret;
start &= PAGE_MASK;
@@ -1503,8 +1501,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
start += nr << PAGE_SHIFT;
pages += nr;
ret = get_user_pages_unlocked(current, mm, start,
nr_pages - nr, write, 0, pages);
ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages);
/* Have to be a bit careful with return values */
if (nr > 0) {
@@ -1519,38 +1516,3 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
}
#endif /* CONFIG_HAVE_GENERIC_RCU_GUP */
long get_user_pages8(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages,
struct vm_area_struct **vmas)
{
WARN_ONCE(tsk != current, "get_user_pages() called on remote task");
WARN_ONCE(mm != current->mm, "get_user_pages() called on remote mm");
return get_user_pages6(start, nr_pages, write, force, pages, vmas);
}
EXPORT_SYMBOL(get_user_pages8);
long get_user_pages_locked8(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages, int *locked)
{
WARN_ONCE(tsk != current, "get_user_pages_locked() called on remote task");
WARN_ONCE(mm != current->mm, "get_user_pages_locked() called on remote mm");
return get_user_pages_locked6(start, nr_pages, write, force, pages, locked);
}
EXPORT_SYMBOL(get_user_pages_locked8);
long get_user_pages_unlocked7(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
int write, int force, struct page **pages)
{
WARN_ONCE(tsk != current, "get_user_pages_unlocked() called on remote task");
WARN_ONCE(mm != current->mm, "get_user_pages_unlocked() called on remote mm");
return get_user_pages_unlocked5(start, nr_pages, write, force, pages);
}
EXPORT_SYMBOL(get_user_pages_unlocked7);