diff options
Diffstat (limited to 'fs/ext3/super.c')
| -rw-r--r-- | fs/ext3/super.c | 92 |
1 files changed, 81 insertions, 11 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 3c3c6e399fb3..a93c3609025d 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -35,6 +35,7 @@ #include <linux/mount.h> #include <linux/namei.h> #include <linux/quotaops.h> +#include <linux/seq_file.h> #include <asm/uaccess.h> #include "xattr.h" #include "acl.h" @@ -509,8 +510,41 @@ static void ext3_clear_inode(struct inode *inode) kfree(rsv); } -#ifdef CONFIG_QUOTA +static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs) +{ + struct ext3_sb_info *sbi = EXT3_SB(vfs->mnt_sb); + + if (sbi->s_mount_opt & EXT3_MOUNT_JOURNAL_DATA) + seq_puts(seq, ",data=journal"); + + if (sbi->s_mount_opt & EXT3_MOUNT_ORDERED_DATA) + seq_puts(seq, ",data=ordered"); + + if (sbi->s_mount_opt & EXT3_MOUNT_WRITEBACK_DATA) + seq_puts(seq, ",data=writeback"); + +#if defined(CONFIG_QUOTA) + if (sbi->s_jquota_fmt) + seq_printf(seq, ",jqfmt=%s", + (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0"); + + if (sbi->s_qf_names[USRQUOTA]) + seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]); + + if (sbi->s_qf_names[GRPQUOTA]) + seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]); + if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) + seq_puts(seq, ",usrquota"); + + if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) + seq_puts(seq, ",grpquota"); +#endif + + return 0; +} + +#ifdef CONFIG_QUOTA #define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group") #define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA)) @@ -569,6 +603,7 @@ static struct super_operations ext3_sops = { .statfs = ext3_statfs, .remount_fs = ext3_remount, .clear_inode = ext3_clear_inode, + .show_options = ext3_show_options, #ifdef CONFIG_QUOTA .quota_read = ext3_quota_read, .quota_write = ext3_quota_write, @@ -590,7 +625,8 @@ enum { Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback, Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota, - Opt_ignore, Opt_barrier, Opt_err, Opt_resize, + Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota, + Opt_grpquota }; static match_table_t tokens = { @@ -634,10 +670,10 @@ static match_table_t tokens = { {Opt_grpjquota, "grpjquota=%s"}, {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, - {Opt_quota, "grpquota"}, + {Opt_grpquota, "grpquota"}, {Opt_noquota, "noquota"}, {Opt_quota, "quota"}, - {Opt_quota, "usrquota"}, + {Opt_usrquota, "usrquota"}, {Opt_barrier, "barrier=%u"}, {Opt_err, NULL}, {Opt_resize, "resize"}, @@ -903,7 +939,13 @@ clear_qf_name: sbi->s_jquota_fmt = QFMT_VFS_V0; break; case Opt_quota: + case Opt_usrquota: set_opt(sbi->s_mount_opt, QUOTA); + set_opt(sbi->s_mount_opt, USRQUOTA); + break; + case Opt_grpquota: + set_opt(sbi->s_mount_opt, QUOTA); + set_opt(sbi->s_mount_opt, GRPQUOTA); break; case Opt_noquota: if (sb_any_quota_enabled(sb)) { @@ -912,8 +954,13 @@ clear_qf_name: return 0; } clear_opt(sbi->s_mount_opt, QUOTA); + clear_opt(sbi->s_mount_opt, USRQUOTA); + clear_opt(sbi->s_mount_opt, GRPQUOTA); break; #else + case Opt_quota: + case Opt_usrquota: + case Opt_grpquota: case Opt_usrjquota: case Opt_grpjquota: case Opt_offusrjquota: @@ -924,7 +971,6 @@ clear_qf_name: "EXT3-fs: journalled quota options not " "supported.\n"); break; - case Opt_quota: case Opt_noquota: break; #endif @@ -962,14 +1008,38 @@ clear_qf_name: } } #ifdef CONFIG_QUOTA - if (!sbi->s_jquota_fmt && (sbi->s_qf_names[USRQUOTA] || - sbi->s_qf_names[GRPQUOTA])) { - printk(KERN_ERR - "EXT3-fs: journalled quota format not specified.\n"); - return 0; + if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { + if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) && + sbi->s_qf_names[USRQUOTA]) + clear_opt(sbi->s_mount_opt, USRQUOTA); + + if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) && + sbi->s_qf_names[GRPQUOTA]) + clear_opt(sbi->s_mount_opt, GRPQUOTA); + + if ((sbi->s_qf_names[USRQUOTA] && + (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) || + (sbi->s_qf_names[GRPQUOTA] && + (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) { + printk(KERN_ERR "EXT3-fs: old and new quota " + "format mixing.\n"); + return 0; + } + + if (!sbi->s_jquota_fmt) { + printk(KERN_ERR "EXT3-fs: journalled quota format " + "not specified.\n"); + return 0; + } + } else { + if (sbi->s_jquota_fmt) { + printk(KERN_ERR "EXT3-fs: journalled quota format " + "specified with no journalling " + "enabled.\n"); + return 0; + } } #endif - return 1; } |
