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authorTejun Heo <tj@kernel.org>2011-05-02 14:16:37 +0200
committerTejun Heo <tj@kernel.org>2011-05-02 14:16:47 +0200
commitba67cf5cf2ce10ad86a212b70f8c7c75d93a5016 (patch)
tree70242f5927c6d6454bd352ff78f956cfc5238f59 /fs/proc/base.c
parentaff364860aa105b2deacc6f21ec8ef524460e3fc (diff)
parent2be19102b71c1a45d37fec50303791daa1a06869 (diff)
Merge branch 'x86/urgent' into x86-mm
Merge reason: Pick up the following two fix commits. 2be19102b7: x86, NUMA: Fix empty memblk detection in numa_cleanup_meminfo() 765af22da8: x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change Scheduled NUMA init 32/64bit unification changes depend on these. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r--fs/proc/base.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 5a670c11aea..dfa532730e5 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -220,7 +220,7 @@ static struct mm_struct *__check_mem_permission(struct task_struct *task)
}
/*
- * Noone else is allowed.
+ * No one else is allowed.
*/
mmput(mm);
return ERR_PTR(-EPERM);
@@ -3124,11 +3124,16 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
/* for the /proc/ directory itself, after non-process stuff has been done */
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
- unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
- struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
+ unsigned int nr;
+ struct task_struct *reaper;
struct tgid_iter iter;
struct pid_namespace *ns;
+ if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET)
+ goto out_no_task;
+ nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+
+ reaper = get_proc_task(filp->f_path.dentry->d_inode);
if (!reaper)
goto out_no_task;