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audit: don't lose set wait time on first successful call to audit_log_start()

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Copy the set wait time to a working value to avoid losing the set
value if the queue overflows.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
This commit is contained in:
Richard Guy Briggs 2015-02-23 15:37:59 -05:00 committed by Paul Moore
parent f1aaf26224
commit a77ed4e568
1 changed files with 4 additions and 3 deletions
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7
kernel/audit.c
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@ -107,6 +107,7 @@ static u32 audit_rate_limit;
* When set to zero, this means unlimited. */
static u32 audit_backlog_limit = 64;
#define AUDIT_BACKLOG_WAIT_TIME (60 * HZ)
static u32 audit_backlog_wait_time_master = AUDIT_BACKLOG_WAIT_TIME;
static u32 audit_backlog_wait_time = AUDIT_BACKLOG_WAIT_TIME;
static u32 audit_backlog_wait_overflow = 0;
@ -338,7 +339,7 @@ static int audit_set_backlog_limit(u32 limit)
static int audit_set_backlog_wait_time(u32 timeout)
{
return audit_do_config_change("audit_backlog_wait_time",
&audit_backlog_wait_time, timeout);
&audit_backlog_wait_time_master, timeout);
}
static int audit_set_enabled(u32 state)
@ -843,7 +844,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
s.lost = atomic_read(&audit_lost);
s.backlog = skb_queue_len(&audit_skb_queue);
s.feature_bitmap = AUDIT_FEATURE_BITMAP_ALL;
s.backlog_wait_time = audit_backlog_wait_time;
s.backlog_wait_time = audit_backlog_wait_time_master;
audit_send_reply(skb, seq, AUDIT_GET, 0, 0, &s, sizeof(s));
break;
}
@ -1394,7 +1395,7 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
return NULL;
}
audit_backlog_wait_time = AUDIT_BACKLOG_WAIT_TIME;
audit_backlog_wait_time = audit_backlog_wait_time_master;
ab = audit_buffer_alloc(ctx, gfp_mask, type);
if (!ab) {