Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
SUNRPC: Server-side disconnect injection
Disconnect injection stress-tests the ability for both client and
server implementations to behave resiliently in the face of network
instability.
A file called /sys/kernel/debug/fail_sunrpc/ignore-server-disconnect
enables administrators to turn off server-side disconnect injection
while allowing other types of sunrpc errors to be injected. The
default setting is that server-side disconnect injection is enabled
(ignore=false).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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+3
net/sunrpc/debugfs.c
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net/sunrpc/debugfs.c
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debugfs_create_bool("ignore-client-disconnect", S_IFREG | 0600, dir,
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&fail_sunrpc.ignore_client_disconnect);
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+
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debugfs_create_bool("ignore-server-disconnect", S_IFREG | 0600, dir,
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&fail_sunrpc.ignore_server_disconnect);
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}
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#else
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static void fail_sunrpc_init(void)
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net/sunrpc/fail.h
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net/sunrpc/fail.h
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net/sunrpc/svc.c
+8
net/sunrpc/svc.c
···
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#include <trace/events/sunrpc.h>
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+
#include "fail.h"
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+
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#define RPCDBG_FACILITY RPCDBG_SVCDSP
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static void svc_unregister(const struct svc_serv *serv, struct net *net);
···
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struct kvec *resv = &rqstp->rq_res.head[0];
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struct svc_serv *serv = rqstp->rq_server;
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u32 dir;
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+
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#if IS_ENABLED(CONFIG_FAIL_SUNRPC)
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if (!fail_sunrpc.ignore_server_disconnect &&
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should_fail(&fail_sunrpc.attr, 1))
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svc_xprt_deferred_close(rqstp->rq_xprt);
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+
#endif
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/*
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* Setup response xdr_buf.