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Bruce Allan f35279d3f7 [PATCH] sunrpc: cache_register can use wrong module reference ... When registering an RPC cache, cache_register() always sets the owner as the sunrpc module. However, there are RPC caches owned by other modules. With the incorrect owner setting, the real owning module can be removed potentially with an open reference to the cache from userspace. For example, if one were to stop the nfs server and unmount the nfsd filesystem, the nfsd module could be removed eventhough rpc.idmapd had references to the idtoname and nametoid caches (i.e. /proc/net/rpc/nfs4.<cachename>/channel is still open). This resulted in a system panic on one of our machines when attempting to restart the nfs services after reloading the nfsd module. The following patch adds a 'struct module *owner' field in struct cache_detail. The owner is further assigned to the struct proc_dir_entry in cache_register() so that the module cannot be unloaded while user-space daemons have an open reference on the associated file under /proc. Signed-off-by: Bruce Allan <bwa@us.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
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auth.h	…
auth_gss.h	…
cache.h	[PATCH] sunrpc: cache_register can use wrong module reference	20 years ago
clnt.h	[PATCH] RPC: Allow multiple RPC client programs to share the same transport	20 years ago
debug.h	…
gss_api.h	…
gss_asn1.h	…
gss_err.h	…
gss_krb5.h	…
gss_spkm3.h	…
msg_prot.h	…
rpc_pipe_fs.h	…
sched.h	[PATCH] RPC: Shrink struct rpc_task by switching to wait_on_bit()	20 years ago
stats.h	…
svc.h	[PATCH] NFSD: Add server support for NFSv3 ACLs.	20 years ago
svcauth.h	…
svcauth_gss.h	…
svcsock.h	…
timer.h	…
types.h	…
xdr.h	[PATCH] NFS: Ensure ACL xdr code doesn't overflow.	20 years ago
xprt.h	…