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authorNeil Brown <neilb@suse.de>2008-06-10 08:40:35 -0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-06-23 13:02:49 -0400
commitbedbdd8bada194a690d2901801bf8451965086b3 (patch)
treedc7ea15dd52370429bd63cd6803d6402cebbd50b /include
parent0d169ca136357d51a65d686f3c84866a8ba20ae9 (diff)
knfsd: Replace lock_kernel with a mutex for nfsd thread startup/shutdown locking.
This removes the BKL from the RPC service creation codepath. The BKL really isn't adequate for this job since some of this info needs protection across sleeps. Also, add some comments to try and clarify how the locking should work and to make it clear that the BKL isn't necessary as long as there is adequate locking between tasks when touching the svc_serv fields. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nfsd/nfsd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 41d30c9c9de..88d85b96442 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -54,6 +54,7 @@ typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
extern struct svc_program nfsd_program;
extern struct svc_version nfsd_version2, nfsd_version3,
nfsd_version4;
+extern struct mutex nfsd_mutex;
extern struct svc_serv *nfsd_serv;
extern struct seq_operations nfs_exports_op;