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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-11 11:49:18 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-11 11:49:18 -0800 |
commit | 4e2ccdb0409146f8cf64a11b6ef82a9c928ced2a (patch) | |
tree | 986896cc558ae23017e79ab08eb55b25c3a54549 /fs/nilfs2/super.c | |
parent | 3ef884b4c04e857c283cc77ca70ad8f638d94b0e (diff) | |
parent | a694291a6211537189c6080f77f63cdabfc9b63e (diff) | |
download | linux-4e2ccdb0409146f8cf64a11b6ef82a9c928ced2a.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: (49 commits)
nilfs2: separate wait function from nilfs_segctor_write
nilfs2: add iterator for segment buffers
nilfs2: hide nilfs_write_info struct in segment buffer code
nilfs2: relocate io status variables to segment buffer
nilfs2: do not return io error for bio allocation failure
nilfs2: use list_splice_tail or list_splice_tail_init
nilfs2: replace mark_inode_dirty as nilfs_mark_inode_dirty
nilfs2: delete mark_inode_dirty in nilfs_delete_entry
nilfs2: delete mark_inode_dirty in nilfs_commit_chunk
nilfs2: change return type of nilfs_commit_chunk
nilfs2: split nilfs_unlink as nilfs_do_unlink and nilfs_unlink
nilfs2: delete redundant mark_inode_dirty
nilfs2: expand inode_inc_link_count and inode_dec_link_count
nilfs2: delete mark_inode_dirty from nilfs_set_link
nilfs2: delete mark_inode_dirty in nilfs_new_inode
nilfs2: add norecovery mount option
nilfs2: add helper to get if volume is in a valid state
nilfs2: move recovery completion into load_nilfs function
nilfs2: apply readahead for recovery on mount
nilfs2: clean up get/put function of a segment usage
...
Diffstat (limited to 'fs/nilfs2/super.c')
-rw-r--r-- | fs/nilfs2/super.c | 88 |
1 files changed, 25 insertions, 63 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 644e66727dd0..5403b3ef3a42 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -363,14 +363,10 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno) list_add(&sbi->s_list, &nilfs->ns_supers); up_write(&nilfs->ns_super_sem); - sbi->s_ifile = nilfs_mdt_new(nilfs, sbi->s_super, NILFS_IFILE_INO); + sbi->s_ifile = nilfs_ifile_new(sbi, nilfs->ns_inode_size); if (!sbi->s_ifile) return -ENOMEM; - err = nilfs_palloc_init_blockgroup(sbi->s_ifile, nilfs->ns_inode_size); - if (unlikely(err)) - goto failed; - down_read(&nilfs->ns_segctor_sem); err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp, &bh_cp); @@ -411,7 +407,6 @@ void nilfs_detach_checkpoint(struct nilfs_sb_info *sbi) { struct the_nilfs *nilfs = sbi->s_nilfs; - nilfs_mdt_clear(sbi->s_ifile); nilfs_mdt_destroy(sbi->s_ifile); sbi->s_ifile = NULL; down_write(&nilfs->ns_super_sem); @@ -419,22 +414,6 @@ void nilfs_detach_checkpoint(struct nilfs_sb_info *sbi) up_write(&nilfs->ns_super_sem); } -static int nilfs_mark_recovery_complete(struct nilfs_sb_info *sbi) -{ - struct the_nilfs *nilfs = sbi->s_nilfs; - int err = 0; - - down_write(&nilfs->ns_sem); - if (!(nilfs->ns_mount_state & NILFS_VALID_FS)) { - nilfs->ns_mount_state |= NILFS_VALID_FS; - err = nilfs_commit_super(sbi, 1); - if (likely(!err)) - printk(KERN_INFO "NILFS: recovery complete.\n"); - } - up_write(&nilfs->ns_sem); - return err; -} - static int nilfs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; @@ -490,7 +469,7 @@ static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs) struct nilfs_sb_info *sbi = NILFS_SB(sb); if (!nilfs_test_opt(sbi, BARRIER)) - seq_printf(seq, ",barrier=off"); + seq_printf(seq, ",nobarrier"); if (nilfs_test_opt(sbi, SNAPSHOT)) seq_printf(seq, ",cp=%llu", (unsigned long long int)sbi->s_snapshot_cno); @@ -500,6 +479,8 @@ static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_printf(seq, ",errors=panic"); if (nilfs_test_opt(sbi, STRICT_ORDER)) seq_printf(seq, ",order=strict"); + if (nilfs_test_opt(sbi, NORECOVERY)) + seq_printf(seq, ",norecovery"); return 0; } @@ -568,7 +549,7 @@ static const struct export_operations nilfs_export_ops = { enum { Opt_err_cont, Opt_err_panic, Opt_err_ro, - Opt_barrier, Opt_snapshot, Opt_order, + Opt_nobarrier, Opt_snapshot, Opt_order, Opt_norecovery, Opt_err, }; @@ -576,25 +557,13 @@ static match_table_t tokens = { {Opt_err_cont, "errors=continue"}, {Opt_err_panic, "errors=panic"}, {Opt_err_ro, "errors=remount-ro"}, - {Opt_barrier, "barrier=%s"}, + {Opt_nobarrier, "nobarrier"}, {Opt_snapshot, "cp=%u"}, {Opt_order, "order=%s"}, + {Opt_norecovery, "norecovery"}, {Opt_err, NULL} }; -static int match_bool(substring_t *s, int *result) -{ - int len = s->to - s->from; - - if (strncmp(s->from, "on", len) == 0) - *result = 1; - else if (strncmp(s->from, "off", len) == 0) - *result = 0; - else - return 1; - return 0; -} - static int parse_options(char *options, struct super_block *sb) { struct nilfs_sb_info *sbi = NILFS_SB(sb); @@ -612,13 +581,8 @@ static int parse_options(char *options, struct super_block *sb) token = match_token(p, tokens, args); switch (token) { - case Opt_barrier: - if (match_bool(&args[0], &option)) - return 0; - if (option) - nilfs_set_opt(sbi, BARRIER); - else - nilfs_clear_opt(sbi, BARRIER); + case Opt_nobarrier: + nilfs_clear_opt(sbi, BARRIER); break; case Opt_order: if (strcmp(args[0].from, "relaxed") == 0) @@ -647,6 +611,9 @@ static int parse_options(char *options, struct super_block *sb) sbi->s_snapshot_cno = option; nilfs_set_opt(sbi, SNAPSHOT); break; + case Opt_norecovery: + nilfs_set_opt(sbi, NORECOVERY); + break; default: printk(KERN_ERR "NILFS: Unrecognized mount option \"%s\"\n", p); @@ -672,9 +639,7 @@ static int nilfs_setup_super(struct nilfs_sb_info *sbi) int mnt_count = le16_to_cpu(sbp->s_mnt_count); /* nilfs->sem must be locked by the caller. */ - if (!(nilfs->ns_mount_state & NILFS_VALID_FS)) { - printk(KERN_WARNING "NILFS warning: mounting unchecked fs\n"); - } else if (nilfs->ns_mount_state & NILFS_ERROR_FS) { + if (nilfs->ns_mount_state & NILFS_ERROR_FS) { printk(KERN_WARNING "NILFS warning: mounting fs with errors\n"); #if 0 @@ -782,11 +747,10 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent, sb->s_root = NULL; sb->s_time_gran = 1; - if (!nilfs_loaded(nilfs)) { - err = load_nilfs(nilfs, sbi); - if (err) - goto failed_sbi; - } + err = load_nilfs(nilfs, sbi); + if (err) + goto failed_sbi; + cno = nilfs_last_cno(nilfs); if (sb->s_flags & MS_RDONLY) { @@ -854,12 +818,6 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent, up_write(&nilfs->ns_sem); } - err = nilfs_mark_recovery_complete(sbi); - if (unlikely(err)) { - printk(KERN_ERR "NILFS: recovery failed.\n"); - goto failed_root; - } - down_write(&nilfs->ns_super_sem); if (!nilfs_test_opt(sbi, SNAPSHOT)) nilfs->ns_current = sbi; @@ -867,10 +825,6 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent, return 0; - failed_root: - dput(sb->s_root); - sb->s_root = NULL; - failed_segctor: nilfs_detach_segment_constructor(sbi); @@ -915,6 +869,14 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data) goto restore_opts; } + if (!nilfs_valid_fs(nilfs)) { + printk(KERN_WARNING "NILFS (device %s): couldn't " + "remount because the filesystem is in an " + "incomplete recovery state.\n", sb->s_id); + err = -EINVAL; + goto restore_opts; + } + if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) goto out; if (*flags & MS_RDONLY) { |