cifs: fix soft mounts hanging in the reconnect code
RHBZ: 1795423 This is the SMB1 version of a patch we already have for SMB2 In recent DFS updates we have a new variable controlling how many times we will retry to reconnect the share. If DFS is not used, then this variable is initialized to 0 in: static inline int dfs_cache_get_nr_tgts(const struct dfs_cache_tgt_list *tl) { return tl ? tl->tl_numtgts : 0; } This means that in the reconnect loop in smb2_reconnect() we will immediately wrap retries to -1 and never actually get to pass this conditional: if (--retries) continue; The effect is that we no longer reach the point where we fail the commands with -EHOSTDOWN and basically the kernel threads are virtually hung and unkillable. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
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@ -260,7 +260,7 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
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if (server->tcpStatus != CifsNeedReconnect)
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break;
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if (--retries)
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if (retries && --retries)
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continue;
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/*
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