diff options
| author | Steve Dickson <steved@redhat.com> | 2007-04-15 01:01:15 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-05-01 09:17:16 +0400 |
| commit | 74dd34e6e8bb127ff4c182423154b294729b663b (patch) | |
| tree | 6e5aef4263a4026942efd03fc2ea974a419153b1 | |
| parent | 00a6e7bbf990e3a5e59a9a1e6a68e99c94fe001c (diff) | |
| download | linux-74dd34e6e8bb127ff4c182423154b294729b663b.tar.xz | |
NFS: Added support to turn off the NFSv3 READDIRPLUS RPC.
READDIRPLUS can be a performance hindrance when the client is working with
large directories. In addition, some servers still have bugs in their
implementations (e.g. Tru64 returns wrong values for the fsid).
Add a mount flag to enable users to turn it off at mount time following the
implementation in Apple's NFS client.
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/client.c | 3 | ||||
| -rw-r--r-- | fs/nfs/super.c | 1 | ||||
| -rw-r--r-- | include/linux/nfs_mount.h | 1 |
3 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 2190e6c2792e..5bd03b97002e 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -618,7 +618,8 @@ static int nfs_init_server(struct nfs_server *server, const struct nfs_mount_dat if (clp->cl_nfsversion == 3) { if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN) server->namelen = NFS3_MAXNAMLEN; - server->caps |= NFS_CAP_READDIRPLUS; + if (!(data->flags & NFS_MOUNT_NORDIRPLUS)) + server->caps |= NFS_CAP_READDIRPLUS; } else { if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN) server->namelen = NFS2_MAXNAMLEN; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 719464a04dda..ca20d3cc2609 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -290,6 +290,7 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss, { NFS_MOUNT_NOAC, ",noac", "" }, { NFS_MOUNT_NONLM, ",nolock", "" }, { NFS_MOUNT_NOACL, ",noacl", "" }, + { NFS_MOUNT_NORDIRPLUS, ",nordirplus", "" }, { 0, NULL, NULL } }; const struct proc_nfs_info *nfs_infop; diff --git a/include/linux/nfs_mount.h b/include/linux/nfs_mount.h index 659c75438454..cc8b9c59acb8 100644 --- a/include/linux/nfs_mount.h +++ b/include/linux/nfs_mount.h @@ -61,6 +61,7 @@ struct nfs_mount_data { #define NFS_MOUNT_NOACL 0x0800 /* 4 */ #define NFS_MOUNT_STRICTLOCK 0x1000 /* reserved for NFSv4 */ #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 */ +#define NFS_MOUNT_NORDIRPLUS 0x4000 /* 5 */ #define NFS_MOUNT_FLAGMASK 0xFFFF #endif |