forked from luck/tmp_suning_uos_patched
ext4: move ext4_show_options() after parse_options()
This commit is strictly a code movement so in preparation of changing ext4_show_options to be table driven. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
parent
26092bf524
commit
2adf6da837
349
fs/ext4/super.c
349
fs/ext4/super.c
@ -62,6 +62,7 @@ static struct ext4_features *ext4_feat;
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static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
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unsigned long journal_devnum);
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static int ext4_show_options(struct seq_file *seq, struct dentry *root);
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static int ext4_commit_super(struct super_block *sb, int sync);
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static void ext4_mark_recovery_complete(struct super_block *sb,
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struct ext4_super_block *es);
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@ -1006,180 +1007,6 @@ void ext4_clear_inode(struct inode *inode)
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}
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}
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static inline void ext4_show_quota_options(struct seq_file *seq,
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struct super_block *sb)
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{
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#if defined(CONFIG_QUOTA)
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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if (sbi->s_jquota_fmt) {
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char *fmtname = "";
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switch (sbi->s_jquota_fmt) {
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case QFMT_VFS_OLD:
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fmtname = "vfsold";
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break;
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case QFMT_VFS_V0:
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fmtname = "vfsv0";
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break;
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case QFMT_VFS_V1:
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fmtname = "vfsv1";
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break;
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}
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seq_printf(seq, ",jqfmt=%s", fmtname);
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}
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if (sbi->s_qf_names[USRQUOTA])
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seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
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if (sbi->s_qf_names[GRPQUOTA])
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seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
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if (test_opt(sb, USRQUOTA))
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seq_puts(seq, ",usrquota");
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if (test_opt(sb, GRPQUOTA))
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seq_puts(seq, ",grpquota");
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#endif
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}
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/*
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* Show an option if
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* - it's set to a non-default value OR
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* - if the per-sb default is different from the global default
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*/
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static int ext4_show_options(struct seq_file *seq, struct dentry *root)
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{
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int def_errors;
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unsigned long def_mount_opts;
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struct super_block *sb = root->d_sb;
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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struct ext4_super_block *es = sbi->s_es;
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def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
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def_errors = le16_to_cpu(es->s_errors);
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if (sbi->s_sb_block != 1)
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seq_printf(seq, ",sb=%llu", sbi->s_sb_block);
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if (test_opt(sb, MINIX_DF))
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seq_puts(seq, ",minixdf");
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if (test_opt(sb, GRPID) && !(def_mount_opts & EXT4_DEFM_BSDGROUPS))
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seq_puts(seq, ",grpid");
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if (!test_opt(sb, GRPID) && (def_mount_opts & EXT4_DEFM_BSDGROUPS))
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seq_puts(seq, ",nogrpid");
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if (sbi->s_resuid != EXT4_DEF_RESUID ||
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le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID) {
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seq_printf(seq, ",resuid=%u", sbi->s_resuid);
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}
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if (sbi->s_resgid != EXT4_DEF_RESGID ||
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le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID) {
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seq_printf(seq, ",resgid=%u", sbi->s_resgid);
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}
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if (test_opt(sb, ERRORS_RO)) {
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if (def_errors == EXT4_ERRORS_PANIC ||
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def_errors == EXT4_ERRORS_CONTINUE) {
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seq_puts(seq, ",errors=remount-ro");
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}
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}
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if (test_opt(sb, ERRORS_CONT) && def_errors != EXT4_ERRORS_CONTINUE)
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seq_puts(seq, ",errors=continue");
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if (test_opt(sb, ERRORS_PANIC) && def_errors != EXT4_ERRORS_PANIC)
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seq_puts(seq, ",errors=panic");
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if (test_opt(sb, NO_UID32) && !(def_mount_opts & EXT4_DEFM_UID16))
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seq_puts(seq, ",nouid32");
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if (test_opt(sb, DEBUG) && !(def_mount_opts & EXT4_DEFM_DEBUG))
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seq_puts(seq, ",debug");
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#ifdef CONFIG_EXT4_FS_XATTR
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if (test_opt(sb, XATTR_USER))
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seq_puts(seq, ",user_xattr");
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if (!test_opt(sb, XATTR_USER))
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seq_puts(seq, ",nouser_xattr");
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#endif
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#ifdef CONFIG_EXT4_FS_POSIX_ACL
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if (test_opt(sb, POSIX_ACL) && !(def_mount_opts & EXT4_DEFM_ACL))
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seq_puts(seq, ",acl");
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if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT4_DEFM_ACL))
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seq_puts(seq, ",noacl");
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#endif
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if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
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seq_printf(seq, ",commit=%u",
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(unsigned) (sbi->s_commit_interval / HZ));
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}
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if (sbi->s_min_batch_time != EXT4_DEF_MIN_BATCH_TIME) {
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seq_printf(seq, ",min_batch_time=%u",
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(unsigned) sbi->s_min_batch_time);
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}
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if (sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME) {
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seq_printf(seq, ",max_batch_time=%u",
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(unsigned) sbi->s_max_batch_time);
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}
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/*
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* We're changing the default of barrier mount option, so
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* let's always display its mount state so it's clear what its
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* status is.
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*/
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seq_puts(seq, ",barrier=");
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seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
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if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
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seq_puts(seq, ",journal_async_commit");
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else if (test_opt(sb, JOURNAL_CHECKSUM))
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seq_puts(seq, ",journal_checksum");
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if (sb->s_flags & MS_I_VERSION)
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seq_puts(seq, ",i_version");
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if (!test_opt(sb, DELALLOC) &&
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!(def_mount_opts & EXT4_DEFM_NODELALLOC))
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seq_puts(seq, ",nodelalloc");
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if (!test_opt(sb, MBLK_IO_SUBMIT))
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seq_puts(seq, ",nomblk_io_submit");
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if (sbi->s_stripe)
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seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
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/*
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* journal mode get enabled in different ways
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* So just print the value even if we didn't specify it
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*/
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if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
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seq_puts(seq, ",data=journal");
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else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
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seq_puts(seq, ",data=ordered");
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else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
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seq_puts(seq, ",data=writeback");
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if (sbi->s_inode_readahead_blks != EXT4_DEF_INODE_READAHEAD_BLKS)
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seq_printf(seq, ",inode_readahead_blks=%u",
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sbi->s_inode_readahead_blks);
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if (test_opt(sb, DATA_ERR_ABORT))
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seq_puts(seq, ",data_err=abort");
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if (test_opt(sb, NO_AUTO_DA_ALLOC))
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seq_puts(seq, ",noauto_da_alloc");
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if (test_opt(sb, DISCARD) && !(def_mount_opts & EXT4_DEFM_DISCARD))
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seq_puts(seq, ",discard");
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if (test_opt(sb, NOLOAD))
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seq_puts(seq, ",norecovery");
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if (test_opt(sb, DIOREAD_NOLOCK))
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seq_puts(seq, ",dioread_nolock");
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if (test_opt(sb, BLOCK_VALIDITY) &&
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!(def_mount_opts & EXT4_DEFM_BLOCK_VALIDITY))
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seq_puts(seq, ",block_validity");
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if (!test_opt(sb, INIT_INODE_TABLE))
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seq_puts(seq, ",noinit_itable");
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else if (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT)
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seq_printf(seq, ",init_itable=%u",
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(unsigned) sbi->s_li_wait_mult);
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ext4_show_quota_options(seq, sb);
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return 0;
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}
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static struct inode *ext4_nfs_get_inode(struct super_block *sb,
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u64 ino, u32 generation)
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{
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@ -1804,6 +1631,180 @@ static int parse_options(char *options, struct super_block *sb,
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return 1;
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}
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static inline void ext4_show_quota_options(struct seq_file *seq,
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struct super_block *sb)
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{
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#if defined(CONFIG_QUOTA)
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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if (sbi->s_jquota_fmt) {
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char *fmtname = "";
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switch (sbi->s_jquota_fmt) {
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case QFMT_VFS_OLD:
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fmtname = "vfsold";
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break;
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case QFMT_VFS_V0:
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fmtname = "vfsv0";
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break;
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case QFMT_VFS_V1:
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fmtname = "vfsv1";
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break;
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}
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seq_printf(seq, ",jqfmt=%s", fmtname);
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}
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if (sbi->s_qf_names[USRQUOTA])
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seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
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if (sbi->s_qf_names[GRPQUOTA])
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seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
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if (test_opt(sb, USRQUOTA))
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seq_puts(seq, ",usrquota");
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if (test_opt(sb, GRPQUOTA))
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seq_puts(seq, ",grpquota");
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#endif
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}
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/*
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* Show an option if
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* - it's set to a non-default value OR
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* - if the per-sb default is different from the global default
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*/
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static int ext4_show_options(struct seq_file *seq, struct dentry *root)
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{
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int def_errors;
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unsigned long def_mount_opts;
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struct super_block *sb = root->d_sb;
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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struct ext4_super_block *es = sbi->s_es;
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def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
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def_errors = le16_to_cpu(es->s_errors);
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if (sbi->s_sb_block != 1)
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seq_printf(seq, ",sb=%llu", sbi->s_sb_block);
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if (test_opt(sb, MINIX_DF))
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seq_puts(seq, ",minixdf");
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if (test_opt(sb, GRPID) && !(def_mount_opts & EXT4_DEFM_BSDGROUPS))
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seq_puts(seq, ",grpid");
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if (!test_opt(sb, GRPID) && (def_mount_opts & EXT4_DEFM_BSDGROUPS))
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seq_puts(seq, ",nogrpid");
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if (sbi->s_resuid != EXT4_DEF_RESUID ||
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le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID) {
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seq_printf(seq, ",resuid=%u", sbi->s_resuid);
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}
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if (sbi->s_resgid != EXT4_DEF_RESGID ||
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le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID) {
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seq_printf(seq, ",resgid=%u", sbi->s_resgid);
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}
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if (test_opt(sb, ERRORS_RO)) {
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if (def_errors == EXT4_ERRORS_PANIC ||
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def_errors == EXT4_ERRORS_CONTINUE) {
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seq_puts(seq, ",errors=remount-ro");
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}
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}
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if (test_opt(sb, ERRORS_CONT) && def_errors != EXT4_ERRORS_CONTINUE)
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seq_puts(seq, ",errors=continue");
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if (test_opt(sb, ERRORS_PANIC) && def_errors != EXT4_ERRORS_PANIC)
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seq_puts(seq, ",errors=panic");
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if (test_opt(sb, NO_UID32) && !(def_mount_opts & EXT4_DEFM_UID16))
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seq_puts(seq, ",nouid32");
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if (test_opt(sb, DEBUG) && !(def_mount_opts & EXT4_DEFM_DEBUG))
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seq_puts(seq, ",debug");
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#ifdef CONFIG_EXT4_FS_XATTR
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if (test_opt(sb, XATTR_USER))
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seq_puts(seq, ",user_xattr");
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if (!test_opt(sb, XATTR_USER))
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seq_puts(seq, ",nouser_xattr");
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#endif
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#ifdef CONFIG_EXT4_FS_POSIX_ACL
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if (test_opt(sb, POSIX_ACL) && !(def_mount_opts & EXT4_DEFM_ACL))
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seq_puts(seq, ",acl");
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if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT4_DEFM_ACL))
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seq_puts(seq, ",noacl");
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#endif
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if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
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seq_printf(seq, ",commit=%u",
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(unsigned) (sbi->s_commit_interval / HZ));
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}
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if (sbi->s_min_batch_time != EXT4_DEF_MIN_BATCH_TIME) {
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seq_printf(seq, ",min_batch_time=%u",
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(unsigned) sbi->s_min_batch_time);
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}
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if (sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME) {
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seq_printf(seq, ",max_batch_time=%u",
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(unsigned) sbi->s_max_batch_time);
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}
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/*
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* We're changing the default of barrier mount option, so
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* let's always display its mount state so it's clear what its
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* status is.
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*/
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seq_puts(seq, ",barrier=");
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seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
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if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
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seq_puts(seq, ",journal_async_commit");
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else if (test_opt(sb, JOURNAL_CHECKSUM))
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seq_puts(seq, ",journal_checksum");
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if (sb->s_flags & MS_I_VERSION)
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seq_puts(seq, ",i_version");
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if (!test_opt(sb, DELALLOC) &&
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!(def_mount_opts & EXT4_DEFM_NODELALLOC))
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seq_puts(seq, ",nodelalloc");
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if (!test_opt(sb, MBLK_IO_SUBMIT))
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seq_puts(seq, ",nomblk_io_submit");
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if (sbi->s_stripe)
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seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
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/*
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* journal mode get enabled in different ways
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* So just print the value even if we didn't specify it
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*/
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if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
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seq_puts(seq, ",data=journal");
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else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
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seq_puts(seq, ",data=ordered");
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else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
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seq_puts(seq, ",data=writeback");
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if (sbi->s_inode_readahead_blks != EXT4_DEF_INODE_READAHEAD_BLKS)
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seq_printf(seq, ",inode_readahead_blks=%u",
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sbi->s_inode_readahead_blks);
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if (test_opt(sb, DATA_ERR_ABORT))
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seq_puts(seq, ",data_err=abort");
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if (test_opt(sb, NO_AUTO_DA_ALLOC))
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seq_puts(seq, ",noauto_da_alloc");
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if (test_opt(sb, DISCARD) && !(def_mount_opts & EXT4_DEFM_DISCARD))
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seq_puts(seq, ",discard");
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if (test_opt(sb, NOLOAD))
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seq_puts(seq, ",norecovery");
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if (test_opt(sb, DIOREAD_NOLOCK))
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seq_puts(seq, ",dioread_nolock");
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if (test_opt(sb, BLOCK_VALIDITY) &&
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!(def_mount_opts & EXT4_DEFM_BLOCK_VALIDITY))
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seq_puts(seq, ",block_validity");
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if (!test_opt(sb, INIT_INODE_TABLE))
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seq_puts(seq, ",noinit_itable");
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else if (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT)
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seq_printf(seq, ",init_itable=%u",
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(unsigned) sbi->s_li_wait_mult);
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ext4_show_quota_options(seq, sb);
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return 0;
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}
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static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
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int read_only)
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{
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