Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=74dd34e6e8bb127ff4c182423154b294729b663b
Commit: 74dd34e6e8bb127ff4c182423154b294729b663b
Parent: 00a6e7bbf990e3a5e59a9a1e6a68e99c94fe001c
Author: Steve Dickson <[EMAIL PROTECTED]>
AuthorDate: Sat Apr 14 17:01:15 2007 -0400
Committer: Trond Myklebust <[EMAIL PROTECTED]>
CommitDate: Mon Apr 30 22:17:16 2007 -0700
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 <[EMAIL PROTECTED]>
Signed-off-by: Trond Myklebust <[EMAIL PROTECTED]>
---
fs/nfs/client.c | 3 ++-
fs/nfs/super.c | 1 +
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 2190e6c..5bd03b9 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 719464a..ca20d3c 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 659c754..cc8b9c5 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
-
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