Commit e4645cc2 authored by Shyam Prasad N's avatar Shyam Prasad N Committed by Steve French
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cifs: add a warning when the in-flight count goes negative 



We've seen the in-flight count go into negative with some
internal stress testing in Microsoft.

Adding a WARN when this happens, in hope of understanding
why this happens when it happens.

Signed-off-by: default avatarShyam Prasad N <sprasad@microsoft.com>
Reviewed-by: default avatarBharath SM <bharathsm@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent c774e677

fs/smb/client/smb2ops.c

+1 −0
Original line number Diff line number Diff line
@@ -93,6 +93,7 @@ smb2_add_credits(struct TCP_Server_Info *server, 
					    server->conn_id, server->hostname, *val,

					    add, server->in_flight);

	}

	WARN_ON_ONCE(server->in_flight == 0);

	server->in_flight--;

	if (server->in_flight == 0 &&

	   ((optype & CIFS_OP_MASK) != CIFS_NEG_OP) &&