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-rw-r--r--fs/nfs/super.c49
1 files changed, 46 insertions, 3 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index d6686f4786d..82eaadbff40 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -60,6 +60,7 @@
#include "delegation.h"
#include "iostat.h"
#include "internal.h"
+#include "fscache.h"
#define NFSDBG_FACILITY NFSDBG_VFS
@@ -76,6 +77,7 @@ enum {
Opt_rdirplus, Opt_nordirplus,
Opt_sharecache, Opt_nosharecache,
Opt_resvport, Opt_noresvport,
+ Opt_fscache, Opt_nofscache,
/* Mount options that take integer arguments */
Opt_port,
@@ -93,6 +95,7 @@ enum {
Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
Opt_addr, Opt_mountaddr, Opt_clientaddr,
Opt_lookupcache,
+ Opt_fscache_uniq,
/* Special mount options */
Opt_userspace, Opt_deprecated, Opt_sloppy,
@@ -132,6 +135,9 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_nosharecache, "nosharecache" },
{ Opt_resvport, "resvport" },
{ Opt_noresvport, "noresvport" },
+ { Opt_fscache, "fsc" },
+ { Opt_fscache_uniq, "fsc=%s" },
+ { Opt_nofscache, "nofsc" },
{ Opt_port, "port=%u" },
{ Opt_rsize, "rsize=%u" },
@@ -563,6 +569,8 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
if (clp->rpc_ops->version == 4)
seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
#endif
+ if (nfss->options & NFS_OPTION_FSCACHE)
+ seq_printf(m, ",fsc");
}
/*
@@ -641,6 +649,10 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
totals.events[i] += stats->events[i];
for (i = 0; i < __NFSIOS_BYTESMAX; i++)
totals.bytes[i] += stats->bytes[i];
+#ifdef CONFIG_NFS_FSCACHE
+ for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
+ totals.fscache[i] += stats->fscache[i];
+#endif
preempt_enable();
}
@@ -651,6 +663,13 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
seq_printf(m, "\n\tbytes:\t");
for (i = 0; i < __NFSIOS_BYTESMAX; i++)
seq_printf(m, "%Lu ", totals.bytes[i]);
+#ifdef CONFIG_NFS_FSCACHE
+ if (nfss->options & NFS_OPTION_FSCACHE) {
+ seq_printf(m, "\n\tfsc:\t");
+ for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
+ seq_printf(m, "%Lu ", totals.bytes[i]);
+ }
+#endif
seq_printf(m, "\n");
rpc_print_iostats(m, nfss->client);
@@ -1018,6 +1037,7 @@ static int nfs_parse_mount_options(char *raw,
case Opt_rdma:
mnt->flags |= NFS_MOUNT_TCP; /* for side protocols */
mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;
+ xprt_load_transport(p);
break;
case Opt_acl:
mnt->flags &= ~NFS_MOUNT_NOACL;
@@ -1043,6 +1063,24 @@ static int nfs_parse_mount_options(char *raw,
case Opt_noresvport:
mnt->flags |= NFS_MOUNT_NORESVPORT;
break;
+ case Opt_fscache:
+ mnt->options |= NFS_OPTION_FSCACHE;
+ kfree(mnt->fscache_uniq);
+ mnt->fscache_uniq = NULL;
+ break;
+ case Opt_nofscache:
+ mnt->options &= ~NFS_OPTION_FSCACHE;
+ kfree(mnt->fscache_uniq);
+ mnt->fscache_uniq = NULL;
+ break;
+ case Opt_fscache_uniq:
+ string = match_strdup(args);
+ if (!string)
+ goto out_nomem;
+ kfree(mnt->fscache_uniq);
+ mnt->fscache_uniq = string;
+ mnt->options |= NFS_OPTION_FSCACHE;
+ break;
/*
* options that take numeric values
@@ -1205,12 +1243,14 @@ static int nfs_parse_mount_options(char *raw,
/* vector side protocols to TCP */
mnt->flags |= NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;
+ xprt_load_transport(string);
break;
default:
errors++;
dfprintk(MOUNT, "NFS: unrecognized "
"transport protocol\n");
}
+ kfree(string);
break;
case Opt_mountproto:
string = match_strdup(args);
@@ -1218,7 +1258,6 @@ static int nfs_parse_mount_options(char *raw,
goto out_nomem;
token = match_token(string,
nfs_xprt_protocol_tokens, args);
- kfree(string);
switch (token) {
case Opt_xprt_udp:
@@ -1868,8 +1907,6 @@ static void nfs_clone_super(struct super_block *sb,
nfs_initialise_sb(sb);
}
-#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
-
static int nfs_compare_mount_options(const struct super_block *s, const struct nfs_server *b, int flags)
{
const struct nfs_server *a = s->s_fs_info;
@@ -2034,6 +2071,7 @@ static int nfs_get_sb(struct file_system_type *fs_type,
if (!s->s_root) {
/* initial superblock/root creation */
nfs_fill_super(s, data);
+ nfs_fscache_get_super_cookie(s, data);
}
mntroot = nfs_get_root(s, mntfh);
@@ -2054,6 +2092,7 @@ static int nfs_get_sb(struct file_system_type *fs_type,
out:
kfree(data->nfs_server.hostname);
kfree(data->mount_server.hostname);
+ kfree(data->fscache_uniq);
security_free_mnt_opts(&data->lsm_opts);
out_free_fh:
kfree(mntfh);
@@ -2081,6 +2120,7 @@ static void nfs_kill_super(struct super_block *s)
bdi_unregister(&server->backing_dev_info);
kill_anon_super(s);
+ nfs_fscache_release_super_cookie(s);
nfs_free_server(server);
}
@@ -2388,6 +2428,7 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
if (!s->s_root) {
/* initial superblock/root creation */
nfs4_fill_super(s);
+ nfs_fscache_get_super_cookie(s, data);
}
mntroot = nfs4_get_root(s, mntfh);
@@ -2409,6 +2450,7 @@ out:
kfree(data->client_address);
kfree(data->nfs_server.export_path);
kfree(data->nfs_server.hostname);
+ kfree(data->fscache_uniq);
security_free_mnt_opts(&data->lsm_opts);
out_free_fh:
kfree(mntfh);
@@ -2435,6 +2477,7 @@ static void nfs4_kill_super(struct super_block *sb)
kill_anon_super(sb);
nfs4_renewd_prepare_shutdown(server);
+ nfs_fscache_release_super_cookie(sb);
nfs_free_server(server);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-30 19:39:36 +0000