3.18-stable review patch. If anyone has any objections, please let me know.
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From: Steve French stfrench@microsoft.com
[ Upstream commit 289131e1f1e6ad8c661ec05e176b8f0915672059 ]
For SMB2/SMB3 the number of requests sent was not displayed in /proc/fs/cifs/Stats unless CONFIG_CIFS_STATS2 was enabled (only number of failed requests displayed). As with earlier dialects, we should be displaying these counters if CONFIG_CIFS_STATS is enabled. They are important for debugging.
e.g. when you cat /proc/fs/cifs/Stats (before the patch) Resources in use CIFS Session: 1 Share (unique mount targets): 2 SMB Request/Response Buffer: 1 Pool size: 5 SMB Small Req/Resp Buffer: 1 Pool size: 30 Operations (MIDs): 0
0 session 0 share reconnects Total vfs operations: 690 maximum at one time: 2
1) \localhost\test SMBs: 975 Negotiates: 0 sent 0 failed SessionSetups: 0 sent 0 failed Logoffs: 0 sent 0 failed TreeConnects: 0 sent 0 failed TreeDisconnects: 0 sent 0 failed Creates: 0 sent 2 failed Closes: 0 sent 0 failed Flushes: 0 sent 0 failed Reads: 0 sent 0 failed Writes: 0 sent 0 failed Locks: 0 sent 0 failed IOCTLs: 0 sent 1 failed Cancels: 0 sent 0 failed Echos: 0 sent 0 failed QueryDirectories: 0 sent 63 failed
Signed-off-by: Steve French stfrench@microsoft.com Reviewed-by: Aurelien Aptel aaptel@suse.com Reviewed-by: Pavel Shilovsky pshilov@microsoft.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/smb2pdu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -301,7 +301,7 @@ small_smb2_init(__le16 smb2_command, str smb2_hdr_assemble((struct smb2_hdr *) *request_buf, smb2_command, tcon);
if (tcon != NULL) { -#ifdef CONFIG_CIFS_STATS2 +#ifdef CONFIG_CIFS_STATS uint16_t com_code = le16_to_cpu(smb2_command); cifs_stats_inc(&tcon->stats.smb2_stats.smb2_com_sent[com_code]); #endif