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Subject[PATCH] pid: pid_ns_ctl_handler: Remove useless comment
Date
From: Rong Tao <rongtao@cestc.cn>

commit 95846ecf9dac("pid: replace pid bitmap implementation with IDR API")
removes 'last_pid' element, and use the idr_get_cursor-idr_set_cursor pair
to set the value of idr, so useless comments should be removed.

Signed-off-by: Rong Tao <rongtao@cestc.cn>
---
kernel/pid_namespace.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 619972c78774..3028b2218aa4 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -286,12 +286,6 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
if (write && !checkpoint_restore_ns_capable(pid_ns->user_ns))
return -EPERM;

- /*
- * Writing directly to ns' last_pid field is OK, since this field
- * is volatile in a living namespace anyway and a code writing to
- * it should synchronize its usage with external means.
- */
-
next = idr_get_cursor(&pid_ns->idr) - 1;

tmp.data = &next;
--
2.41.0
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