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-rw-r--r--fs/nfs/super.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 703f595dce90..a84df7d63403 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2382,6 +2382,15 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info)
sb->s_flags |= SB_POSIXACL;
sb->s_time_gran = 1;
sb->s_export_op = &nfs_export_ops;
+ } else
+ sb->s_time_gran = 1000;
+
+ if (server->nfs_client->rpc_ops->version != 4) {
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+ } else {
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
}
nfs_initialise_sb(sb);
@@ -2402,7 +2411,6 @@ static void nfs_clone_super(struct super_block *sb,
sb->s_maxbytes = old_sb->s_maxbytes;
sb->s_xattr = old_sb->s_xattr;
sb->s_op = old_sb->s_op;
- sb->s_time_gran = 1;
sb->s_export_op = old_sb->s_export_op;
if (server->nfs_client->rpc_ops->version != 2) {
@@ -2410,6 +2418,16 @@ static void nfs_clone_super(struct super_block *sb,
* so ourselves when necessary.
*/
sb->s_flags |= SB_POSIXACL;
+ sb->s_time_gran = 1;
+ } else
+ sb->s_time_gran = 1000;
+
+ if (server->nfs_client->rpc_ops->version != 4) {
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+ } else {
+ sb->s_time_min = S64_MIN;
+ sb->s_time_max = S64_MAX;
}
nfs_initialise_sb(sb);
@@ -2627,6 +2645,13 @@ int nfs_clone_sb_security(struct super_block *s, struct dentry *mntroot,
}
EXPORT_SYMBOL_GPL(nfs_clone_sb_security);
+static void nfs_set_readahead(struct backing_dev_info *bdi,
+ unsigned long iomax_pages)
+{
+ bdi->ra_pages = VM_READAHEAD_PAGES;
+ bdi->io_pages = iomax_pages;
+}
+
struct dentry *nfs_fs_mount_common(struct nfs_server *server,
int flags, const char *dev_name,
struct nfs_mount_info *mount_info,
@@ -2669,7 +2694,7 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
mntroot = ERR_PTR(error);
goto error_splat_super;
}
- s->s_bdi->ra_pages = server->rpages * NFS_MAX_READAHEAD;
+ nfs_set_readahead(s->s_bdi, server->rpages);
server->super = s;
}