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cifs: Add support for failover in cifs_reconnect()

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After failing to reconnect to original target, it will retry any
target available from DFS cache.

Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Paulo Alcantara
2018-11-14 17:13:25 -02:00
committed by Steve French
parent 4a367dc044
commit 93d5cb517d
3 changed files with 204 additions and 1 deletions
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7
fs/cifs/cifsglob.h
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@@ -701,6 +701,13 @@ struct TCP_Server_Info {
struct delayed_work reconnect; /* reconnect workqueue job */
struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
unsigned long echo_interval;
/*
* Number of targets available for reconnect. The more targets
* the more tasks have to wait to let the demultiplex thread
* reconnect.
*/
int nr_targets;
};
static inline unsigned int