diff options
| author | Evgeniy Dushistov <dushistov@mail.ru> | 2007-10-16 23:26:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:49 -0700 |
| commit | 2a9807c0d39066236640aa34ca8de168e690632f (patch) | |
| tree | d0d05b5c89336344d2bb95a41f6ce065c8211e6c /fs/ufs/super.c | |
| parent | 252e211e90ce56bf005cb533ad5a297c18c19407 (diff) | |
ufs: implement show_options
An implementation of show_options method for UFS.
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ufs/super.c')
| -rw-r--r-- | fs/ufs/super.c | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c index 87f6b51a895d..21987d29994d 100644 --- a/fs/ufs/super.c +++ b/fs/ufs/super.c @@ -88,6 +88,8 @@ #include <linux/buffer_head.h> #include <linux/vfs.h> #include <linux/log2.h> +#include <linux/mount.h> +#include <linux/seq_file.h> #include "swab.h" #include "util.h" @@ -286,10 +288,21 @@ void ufs_warning (struct super_block * sb, const char * function, } enum { - Opt_type_old, Opt_type_sunx86, Opt_type_sun, Opt_type_sunos, Opt_type_44bsd, - Opt_type_ufs2, Opt_type_hp, Opt_type_nextstepcd, Opt_type_nextstep, - Opt_type_openstep, Opt_onerror_panic, Opt_onerror_lock, - Opt_onerror_umount, Opt_onerror_repair, Opt_err + Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, + Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, + Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, + Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, + Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, + Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, + Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, + Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, + Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, + Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, + Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, + Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, + Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, + Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, + Opt_err }; static match_table_t tokens = { @@ -304,6 +317,7 @@ static match_table_t tokens = { {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, {Opt_type_nextstep, "ufstype=nextstep"}, {Opt_type_openstep, "ufstype=openstep"}, +/*end of possible ufs types */ {Opt_onerror_panic, "onerror=panic"}, {Opt_onerror_lock, "onerror=lock"}, {Opt_onerror_umount, "onerror=umount"}, @@ -1206,6 +1220,26 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) return 0; } +static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs) +{ + struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb); + unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; + struct match_token *tp = tokens; + + while (tp->token != Opt_onerror_panic && tp->token != mval) + ++tp; + BUG_ON(tp->token == Opt_onerror_panic); + seq_printf(seq, ",%s", tp->pattern); + + mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; + while (tp->token != Opt_err && tp->token != mval) + ++tp; + BUG_ON(tp->token == Opt_err); + seq_printf(seq, ",%s", tp->pattern); + + return 0; +} + static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; @@ -1298,6 +1332,7 @@ static const struct super_operations ufs_super_ops = { .write_super = ufs_write_super, .statfs = ufs_statfs, .remount_fs = ufs_remount, + .show_options = ufs_show_options, #ifdef CONFIG_QUOTA .quota_read = ufs_quota_read, .quota_write = ufs_quota_write, |