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authorMatt Mackall <mpm@selenic.com>2008-02-04 22:29:03 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:16 -0800
commitf248dcb34d7b7ac255db70071a20be9d9c6ad491 (patch)
treeec7c7fb115e40b4a337af98a6f9f2ad5db9af1f0 /fs/proc/base.c
parent4752c369789250eafcd7813e11c8fb689235b0d2 (diff)
maps4: move clear_refs code to task_mmu.c
This puts all the clear_refs code where it belongs and probably lets things compile on MMU-less systems as well. Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: David Rientjes <rientjes@google.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r--fs/proc/base.c40
1 files changed, 0 insertions, 40 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 33537487f5ab..1bd646d3fe9a 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -88,10 +88,6 @@
* in /proc for a task before it execs a suid executable.
*/
-
-/* Worst case buffer size needed for holding an integer. */
-#define PROC_NUMBUF 13
-
struct pid_entry {
char *name;
int len;
@@ -935,42 +931,6 @@ static const struct file_operations proc_oom_adjust_operations = {
.write = oom_adjust_write,
};
-#ifdef CONFIG_MMU
-static ssize_t clear_refs_write(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct task_struct *task;
- char buffer[PROC_NUMBUF], *end;
- struct mm_struct *mm;
-
- memset(buffer, 0, sizeof(buffer));
- if (count > sizeof(buffer) - 1)
- count = sizeof(buffer) - 1;
- if (copy_from_user(buffer, buf, count))
- return -EFAULT;
- if (!simple_strtol(buffer, &end, 0))
- return -EINVAL;
- if (*end == '\n')
- end++;
- task = get_proc_task(file->f_path.dentry->d_inode);
- if (!task)
- return -ESRCH;
- mm = get_task_mm(task);
- if (mm) {
- clear_refs_smap(mm);
- mmput(mm);
- }
- put_task_struct(task);
- if (end - buffer == 0)
- return -EIO;
- return end - buffer;
-}
-
-static struct file_operations proc_clear_refs_operations = {
- .write = clear_refs_write,
-};
-#endif
-
#ifdef CONFIG_AUDITSYSCALL
#define TMPBUFLEN 21
static ssize_t proc_loginuid_read(struct file * file, char __user * buf,