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mount options: fix reiserfs 

Add a .show_options super operation to reiserfs.

Use generic_show_options() and save the complete option string in
reiserfs_fill_super() and reiserfs_remount().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miklos Szeredi 2008-02-08 04:21:47 -08:00 committed by Linus Torvalds
parent 564cd138cb
commit cdf6ccc8b8
1 changed files with 26 additions and 12 deletions
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38
fs/reiserfs/super.c
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@ -617,6 +617,7 @@ static const struct super_operations reiserfs_sops = {
.unlockfs = reiserfs_unlockfs,
.statfs = reiserfs_statfs,
.remount_fs = reiserfs_remount,
.show_options = generic_show_options,
#ifdef CONFIG_QUOTA
.quota_read = reiserfs_quota_read,
.quota_write = reiserfs_quota_write,
@ -1138,6 +1139,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
unsigned long safe_mask = 0;
unsigned int commit_max_age = (unsigned int)-1;
struct reiserfs_journal *journal = SB_JOURNAL(s);
char *new_opts = kstrdup(arg, GFP_KERNEL);
int err;
#ifdef CONFIG_QUOTA
int i;
@ -1153,7 +1155,8 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
REISERFS_SB(s)->s_qf_names[i] = NULL;
}
#endif
return -EINVAL;
err = -EINVAL;
goto out_err;
}
handle_attrs(s);
@ -1191,9 +1194,9 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
}
if (blocks) {
int rc = reiserfs_resize(s, blocks);
if (rc != 0)
return rc;
err = reiserfs_resize(s, blocks);
if (err != 0)
goto out_err;
}
if (*mount_flags & MS_RDONLY) {
@ -1201,16 +1204,16 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
/* remount read-only */
if (s->s_flags & MS_RDONLY)
/* it is read-only already */
return 0;
goto out_ok;
/* try to remount file system with read-only permissions */
if (sb_umount_state(rs) == REISERFS_VALID_FS
|| REISERFS_SB(s)->s_mount_state != REISERFS_VALID_FS) {
return 0;
goto out_ok;
}
err = journal_begin(&th, s, 10);
if (err)
return err;
goto out_err;
/* Mounting a rw partition read-only. */
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
@ -1220,11 +1223,13 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
/* remount read-write */
if (!(s->s_flags & MS_RDONLY)) {
reiserfs_xattr_init(s, *mount_flags);
return 0; /* We are read-write already */
goto out_ok; /* We are read-write already */
}
if (reiserfs_is_journal_aborted(journal))
return journal->j_errno;
if (reiserfs_is_journal_aborted(journal)) {
err = journal->j_errno;
goto out_err;
}
handle_data_mode(s, mount_options);
handle_barrier_mode(s, mount_options);
@ -1232,7 +1237,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
s->s_flags &= ~MS_RDONLY; /* now it is safe to call journal_begin */
err = journal_begin(&th, s, 10);
if (err)
return err;
goto out_err;
/* Mount a partition which is read-only, read-write */
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
@ -1247,7 +1252,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
SB_JOURNAL(s)->j_must_wait = 1;
err = journal_end(&th, s, 10);
if (err)
return err;
goto out_err;
s->s_dirt = 0;
if (!(*mount_flags & MS_RDONLY)) {
@ -1255,7 +1260,14 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
reiserfs_xattr_init(s, *mount_flags);
}
out_ok:
kfree(s->s_options);
s->s_options = new_opts;
return 0;
out_err:
kfree(new_opts);
return err;
}
static int read_super_block(struct super_block *s, int offset)
@ -1559,6 +1571,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
struct reiserfs_sb_info *sbi;
int errval = -EINVAL;
save_mount_options(s, data);
sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
if (!sbi) {
errval = -ENOMEM;