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authorSage Weil <sage@newdream.net>2010-06-30 21:34:01 -0700
committerSage Weil <sage@newdream.net>2010-08-01 20:11:41 -0700
commitc309f0ab26ca37663f368918553d02e90356c89d (patch)
tree431be55e223cae146317fa46c94b7d9253d616a8 /fs/ceph
parente0f9f9ee8f6cb60fe49e32e1df790a698ce0840c (diff)
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ceph: clean up fsid mount option
Specify the fsid mount option in hex, not via the major/minor u64 hackery we had before. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/super.c52
1 files changed, 39 insertions, 13 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index c1ea38e5aebd..3100c909cbb1 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -2,6 +2,7 @@
#include "ceph_debug.h"
#include <linux/backing-dev.h>
+#include <linux/ctype.h>
#include <linux/fs.h>
#include <linux/inet.h>
#include <linux/in6.h>
@@ -150,9 +151,7 @@ static int ceph_show_options(struct seq_file *m, struct vfsmount *mnt)
struct ceph_mount_args *args = client->mount_args;
if (args->flags & CEPH_OPT_FSID)
- seq_printf(m, ",fsidmajor=%llu,fsidminor%llu",
- le64_to_cpu(*(__le64 *)&args->fsid.fsid[0]),
- le64_to_cpu(*(__le64 *)&args->fsid.fsid[8]));
+ seq_printf(m, ",fsid=" FSID_FORMAT, PR_FSID(&args->fsid));
if (args->flags & CEPH_OPT_NOSHARE)
seq_puts(m, ",noshare");
if (args->flags & CEPH_OPT_DIRSTAT)
@@ -322,8 +321,6 @@ const char *ceph_msg_type_name(int type)
* mount options
*/
enum {
- Opt_fsidmajor,
- Opt_fsidminor,
Opt_wsize,
Opt_rsize,
Opt_osdtimeout,
@@ -338,6 +335,7 @@ enum {
Opt_congestion_kb,
Opt_last_int,
/* int args above */
+ Opt_fsid,
Opt_snapdirname,
Opt_name,
Opt_secret,
@@ -354,8 +352,6 @@ enum {
};
static match_table_t arg_tokens = {
- {Opt_fsidmajor, "fsidmajor=%ld"},
- {Opt_fsidminor, "fsidminor=%ld"},
{Opt_wsize, "wsize=%d"},
{Opt_rsize, "rsize=%d"},
{Opt_osdtimeout, "osdtimeout=%d"},
@@ -369,6 +365,7 @@ static match_table_t arg_tokens = {
{Opt_readdir_max_bytes, "readdir_max_bytes=%d"},
{Opt_congestion_kb, "write_congestion_kb=%d"},
/* int args above */
+ {Opt_fsid, "fsid=%s"},
{Opt_snapdirname, "snapdirname=%s"},
{Opt_name, "name=%s"},
{Opt_secret, "secret=%s"},
@@ -384,6 +381,36 @@ static match_table_t arg_tokens = {
{-1, NULL}
};
+static int parse_fsid(const char *str, struct ceph_fsid *fsid)
+{
+ int i = 0;
+ char tmp[3];
+ int err = -EINVAL;
+ int d;
+
+ dout("parse_fsid '%s'\n", str);
+ tmp[2] = 0;
+ while (*str && i < 16) {
+ if (ispunct(*str)) {
+ str++;
+ continue;
+ }
+ if (!isxdigit(str[0]) || !isxdigit(str[1]))
+ break;
+ tmp[0] = str[0];
+ tmp[1] = str[1];
+ if (sscanf(tmp, "%x", &d) < 1)
+ break;
+ fsid->fsid[i] = d & 0xff;
+ i++;
+ str += 2;
+ }
+
+ if (i == 16)
+ err = 0;
+ dout("parse_fsid ret %d got fsid " FSID_FORMAT, err, PR_FSID(fsid));
+ return err;
+}
static struct ceph_mount_args *parse_mount_args(int flags, char *options,
const char *dev_name,
@@ -467,12 +494,6 @@ static struct ceph_mount_args *parse_mount_args(int flags, char *options,
dout("got token %d\n", token);
}
switch (token) {
- case Opt_fsidmajor:
- *(__le64 *)&args->fsid.fsid[0] = cpu_to_le64(intval);
- break;
- case Opt_fsidminor:
- *(__le64 *)&args->fsid.fsid[8] = cpu_to_le64(intval);
- break;
case Opt_ip:
err = ceph_parse_ips(argstr[0].from,
argstr[0].to,
@@ -483,6 +504,11 @@ static struct ceph_mount_args *parse_mount_args(int flags, char *options,
args->flags |= CEPH_OPT_MYIP;
break;
+ case Opt_fsid:
+ err = parse_fsid(argstr[0].from, &args->fsid);
+ if (err == 0)
+ args->flags |= CEPH_OPT_FSID;
+ break;
case Opt_snapdirname:
kfree(args->snapdir_name);
args->snapdir_name = kstrndup(argstr[0].from,