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authorAl Viro <viro@zeniv.linux.org.uk>2016-04-28 23:56:31 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-05-09 11:39:45 -0400
commit884be175351e73c515303118150f195dd611787c (patch)
treeba85a80a6422df631b18af344132c6fcb67f1594 /fs/nfs/inode.c
parent9ac3d3e8460e3fa6f3a9a39c2049904005016db6 (diff)
downloadlinux-884be175351e73c515303118150f195dd611787c.tar.bz2
nfs: per-name sillyunlink exclusion
use d_alloc_parallel() for sillyunlink/lookup exclusion and explicit rwsem (nfs_rmdir() being a writer and nfs_call_unlink() - a reader) for rmdir/sillyunlink one. That ought to make lookup/readdir/!O_CREAT atomic_open really parallel on NFS. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 738c84a42eb0..52e7d6869e3b 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1958,9 +1958,7 @@ static void init_once(void *foo)
nfsi->nrequests = 0;
nfsi->commit_info.ncommit = 0;
atomic_set(&nfsi->commit_info.rpcs_out, 0);
- atomic_set(&nfsi->silly_count, 1);
- INIT_HLIST_HEAD(&nfsi->silly_list);
- init_waitqueue_head(&nfsi->waitqueue);
+ init_rwsem(&nfsi->rmdir_sem);
nfs4_init_once(nfsi);
}