smb3: fix reset of bytes read and written stats (c281bc0c) · Commits · 戴 / test

echo 0 > /proc/fs/cifs/Stats is supposed to reset the stats but there were four (see example below) that were not reset (bytes read and witten, total vfs ops and max ops at one time). ... 0 session 0 share reconnects Total vfs operations: 100 maximum at one time: 2 1) \\localhost\test SMBs: 0 Bytes read: 502092 Bytes written: 31457286 TreeConnects: 0 total 0 failed TreeDisconnects: 0 total 0 failed ... This patch fixes cifs_stats_proc_write to properly reset those four. Signed-off-by:

Steve French <stfrench@microsoft.com> Reviewed-by:

Aurelien Aptel <aaptel@suse.com>

fs/cifs/cifs_debug.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -381,6 +381,10 @@ static ssize_t cifs_stats_proc_write(struct file *file,
		atomic_set(&totBufAllocCount, 0);
		atomic_set(&totSmBufAllocCount, 0);
		#endif /* CONFIG_CIFS_STATS2 */
		spin_lock(&GlobalMid_Lock);
		GlobalMaxActiveXid = 0;
		GlobalCurrentXid = 0;
		spin_unlock(&GlobalMid_Lock);
		spin_lock(&cifs_tcp_ses_lock);
		list_for_each(tmp1, &cifs_tcp_ses_list) {
		server = list_entry(tmp1, struct TCP_Server_Info,
		@@ -393,6 +397,10 @@ static ssize_t cifs_stats_proc_write(struct file *file,
		struct cifs_tcon,
		tcon_list);
		atomic_set(&tcon->num_smbs_sent, 0);
		spin_lock(&tcon->stat_lock);
		tcon->bytes_read = 0;
		tcon->bytes_written = 0;
		spin_unlock(&tcon->stat_lock);
		if (server->ops->clear_stats)
		server->ops->clear_stats(tcon);
		}

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