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| author | Benjamin Coddington <bcodding@redhat.com> | 2023-06-15 21:07:30 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2023-06-19 22:08:12 +0300 |
| commit | d9615d166c7ede67bf16bdd0772e35e124f305f5 (patch) | |
| tree | 7e527b93c0c0ab2e63f9455bbae7d8c6a8d3d9ae /include/linux | |
| parent | f4057ffd0e134e54a727e00c3c9b0d9a5051eadf (diff) | |
| download | linux-d9615d166c7ede67bf16bdd0772e35e124f305f5.tar.xz | |
NFS: add sysfs shutdown knob
Within each nfs_server sysfs tree, add an entry named "shutdown". Writing
1 to this file will set the cl_shutdown bit on the rpc_clnt structs
associated with that mount. If cl_shutdown is set, the task scheduler
immediately returns -EIO for new tasks.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 1 | ||||
| -rw-r--r-- | include/linux/sunrpc/clnt.h | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 4bed0b6c79c7..20eeba8b009d 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -154,6 +154,7 @@ struct nfs_server { #define NFS_MOUNT_WRITE_EAGER 0x01000000 #define NFS_MOUNT_WRITE_WAIT 0x02000000 #define NFS_MOUNT_TRUNK_DISCOVERY 0x04000000 +#define NFS_MOUNT_SHUTDOWN 0x08000000 unsigned int fattr_valid; /* Valid attributes */ unsigned int caps; /* server capabilities */ diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 88cdf6e3012a..4f41d839face 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -63,7 +63,8 @@ struct rpc_clnt { cl_discrtry : 1,/* disconnect before retry */ cl_noretranstimeo: 1,/* No retransmit timeouts */ cl_autobind : 1,/* use getport() */ - cl_chatty : 1;/* be verbose */ + cl_chatty : 1,/* be verbose */ + cl_shutdown : 1;/* rpc immediate -EIO */ struct xprtsec_parms cl_xprtsec; /* transport security policy */ struct rpc_rtt * cl_rtt; /* RTO estimator data */ |