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authorStephen Wilson <wilsons@start.ca>2011-03-13 15:49:16 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-23 16:36:54 -0400
commit83b964bbf82eb13a8f31bb49ca420787fe01f7a6 (patch)
treec94dcf5f4116ca351570fb9d2b7e37834e93f430 /include/linux/mm.h
parent31db58b3ab432f72ea76be58b12e6ffaf627d5db (diff)
mm: arch: make in_gate_area take an mm_struct instead of a task_struct
Morally, the question of whether an address lies in a gate vma should be asked with respect to an mm, not a particular task. Moreover, dropping the dependency on task_struct will help make existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen Wilson <wilsons@start.ca> Reviewed-by: Michel Lespinasse <walken@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 18b4a6358ab4..5c6d916cd302 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1581,10 +1581,10 @@ static inline bool kernel_page_present(struct page *page) { return true; }
1581extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm); 1581extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm);
1582#ifdef __HAVE_ARCH_GATE_AREA 1582#ifdef __HAVE_ARCH_GATE_AREA
1583int in_gate_area_no_task(unsigned long addr); 1583int in_gate_area_no_task(unsigned long addr);
1584int in_gate_area(struct task_struct *task, unsigned long addr); 1584int in_gate_area(struct mm_struct *mm, unsigned long addr);
1585#else 1585#else
1586int in_gate_area_no_task(unsigned long addr); 1586int in_gate_area_no_task(unsigned long addr);
1587#define in_gate_area(task, addr) ({(void)task; in_gate_area_no_task(addr);}) 1587#define in_gate_area(mm, addr) ({(void)mm; in_gate_area_no_task(addr);})
1588#endif /* __HAVE_ARCH_GATE_AREA */ 1588#endif /* __HAVE_ARCH_GATE_AREA */
1589 1589
1590int drop_caches_sysctl_handler(struct ctl_table *, int, 1590int drop_caches_sysctl_handler(struct ctl_table *, int,