{Opt_err, NULL},
};
+void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
+ va_end(args);
+}
+
static void init_once(void *foo)
{
struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
init_once((void *) fi);
- /* Initilize f2fs-specific inode info */
+ /* Initialize f2fs-specific inode info */
fi->vfs_inode.i_version = 1;
atomic_set(&fi->dirty_dents, 0);
fi->i_current_depth = 1;
f2fs_destroy_stats(sbi);
stop_gc_thread(sbi);
- write_checkpoint(sbi, false, true);
+ write_checkpoint(sbi, true);
iput(sbi->node_inode);
iput(sbi->meta_inode);
int f2fs_sync_fs(struct super_block *sb, int sync)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int ret = 0;
if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES))
return 0;
if (sync)
- write_checkpoint(sbi, false, false);
+ write_checkpoint(sbi, false);
+ else
+ f2fs_balance_fs(sbi);
- return ret;
+ return 0;
+}
+
+static int f2fs_freeze(struct super_block *sb)
+{
+ int err;
+
+ if (sb->s_flags & MS_RDONLY)
+ return 0;
+
+ err = f2fs_sync_fs(sb, 1);
+ return err;
+}
+
+static int f2fs_unfreeze(struct super_block *sb)
+{
+ return 0;
}
static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_bfree = buf->f_blocks - valid_user_blocks(sbi) - ovp_count;
buf->f_bavail = user_block_count - valid_user_blocks(sbi);
- buf->f_files = valid_inode_count(sbi);
- buf->f_ffree = sbi->total_node_count - valid_node_count(sbi);
+ buf->f_files = sbi->total_node_count;
+ buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi);
buf->f_namelen = F2FS_MAX_NAME_LEN;
buf->f_fsid.val[0] = (u32)id;
seq_puts(seq, ",noacl");
#endif
if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
- seq_puts(seq, ",disable_ext_indentify");
+ seq_puts(seq, ",disable_ext_identify");
seq_printf(seq, ",active_logs=%u", sbi->active_logs);
.evict_inode = f2fs_evict_inode,
.put_super = f2fs_put_super,
.sync_fs = f2fs_sync_fs,
+ .freeze_fs = f2fs_freeze,
+ .unfreeze_fs = f2fs_unfreeze,
.statfs = f2fs_statfs,
};
.get_parent = f2fs_get_parent,
};
-static int parse_options(struct f2fs_sb_info *sbi, char *options)
+static int parse_options(struct super_block *sb, struct f2fs_sb_info *sbi,
+ char *options)
{
substring_t args[MAX_OPT_ARGS];
char *p;
break;
#else
case Opt_nouser_xattr:
- pr_info("nouser_xattr options not supported\n");
+ f2fs_msg(sb, KERN_INFO,
+ "nouser_xattr options not supported");
break;
#endif
#ifdef CONFIG_F2FS_FS_POSIX_ACL
break;
#else
case Opt_noacl:
- pr_info("noacl options not supported\n");
+ f2fs_msg(sb, KERN_INFO, "noacl options not supported");
break;
#endif
case Opt_active_logs:
if (args->from && match_int(args, &arg))
return -EINVAL;
- if (arg != 2 && arg != 4 && arg != 6)
+ if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE)
return -EINVAL;
sbi->active_logs = arg;
break;
set_opt(sbi, DISABLE_EXT_IDENTIFY);
break;
default:
- pr_err("Unrecognized mount option \"%s\" or missing value\n",
- p);
+ f2fs_msg(sb, KERN_ERR,
+ "Unrecognized mount option \"%s\" or missing value",
+ p);
return -EINVAL;
}
}
return result;
}
-static int sanity_check_raw_super(struct f2fs_super_block *raw_super)
+static int sanity_check_raw_super(struct super_block *sb,
+ struct f2fs_super_block *raw_super)
{
unsigned int blocksize;
- if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic))
+ if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) {
+ f2fs_msg(sb, KERN_INFO,
+ "Magic Mismatch, valid(0x%x) - read(0x%x)",
+ F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
return 1;
+ }
+
+ /* Currently, support only 4KB page cache size */
+ if (F2FS_BLKSIZE != PAGE_CACHE_SIZE) {
+ f2fs_msg(sb, KERN_INFO,
+ "Invalid page_cache_size (%lu), supports only 4KB\n",
+ PAGE_CACHE_SIZE);
+ return 1;
+ }
/* Currently, support only 4KB block size */
blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
- if (blocksize != PAGE_CACHE_SIZE)
+ if (blocksize != F2FS_BLKSIZE) {
+ f2fs_msg(sb, KERN_INFO,
+ "Invalid blocksize (%u), supports only 4KB\n",
+ blocksize);
return 1;
+ }
+
if (le32_to_cpu(raw_super->log_sectorsize) !=
- F2FS_LOG_SECTOR_SIZE)
+ F2FS_LOG_SECTOR_SIZE) {
+ f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize");
return 1;
+ }
if (le32_to_cpu(raw_super->log_sectors_per_block) !=
- F2FS_LOG_SECTORS_PER_BLOCK)
+ F2FS_LOG_SECTORS_PER_BLOCK) {
+ f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block");
return 1;
+ }
return 0;
}
-static int sanity_check_ckpt(struct f2fs_super_block *raw_super,
- struct f2fs_checkpoint *ckpt)
+static int sanity_check_ckpt(struct f2fs_sb_info *sbi)
{
unsigned int total, fsmeta;
+ struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
+ struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
total = le32_to_cpu(raw_super->segment_count);
fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
if (fsmeta >= total)
return 1;
+
+ if (is_set_ckpt_flags(ckpt, CP_ERROR_FLAG)) {
+ f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
+ return 1;
+ }
return 0;
}
atomic_set(&sbi->nr_pages[i], 0);
}
+static int validate_superblock(struct super_block *sb,
+ struct f2fs_super_block **raw_super,
+ struct buffer_head **raw_super_buf, sector_t block)
+{
+ const char *super = (block == 0 ? "first" : "second");
+
+ /* read f2fs raw super block */
+ *raw_super_buf = sb_bread(sb, block);
+ if (!*raw_super_buf) {
+ f2fs_msg(sb, KERN_ERR, "unable to read %s superblock",
+ super);
+ return 1;
+ }
+
+ *raw_super = (struct f2fs_super_block *)
+ ((char *)(*raw_super_buf)->b_data + F2FS_SUPER_OFFSET);
+
+ /* sanity checking of raw super */
+ if (!sanity_check_raw_super(sb, *raw_super))
+ return 0;
+
+ f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
+ "in %s superblock", super);
+ return 1;
+}
+
static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
{
struct f2fs_sb_info *sbi;
if (!sbi)
return -ENOMEM;
- /* set a temporary block size */
- if (!sb_set_blocksize(sb, F2FS_BLKSIZE))
- goto free_sbi;
-
- /* read f2fs raw super block */
- raw_super_buf = sb_bread(sb, 0);
- if (!raw_super_buf) {
- err = -EIO;
+ /* set a block size */
+ if (!sb_set_blocksize(sb, F2FS_BLKSIZE)) {
+ f2fs_msg(sb, KERN_ERR, "unable to set blocksize");
goto free_sbi;
}
- raw_super = (struct f2fs_super_block *)
- ((char *)raw_super_buf->b_data + F2FS_SUPER_OFFSET);
+ if (validate_superblock(sb, &raw_super, &raw_super_buf, 0)) {
+ brelse(raw_super_buf);
+ if (validate_superblock(sb, &raw_super, &raw_super_buf, 1))
+ goto free_sb_buf;
+ }
/* init some FS parameters */
sbi->active_logs = NR_CURSEG_TYPE;
set_opt(sbi, POSIX_ACL);
#endif
/* parse mount options */
- if (parse_options(sbi, (char *)data))
- goto free_sb_buf;
-
- /* sanity checking of raw super */
- if (sanity_check_raw_super(raw_super))
+ if (parse_options(sb, sbi, (char *)data))
goto free_sb_buf;
sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize));
/* get an inode for meta space */
sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
if (IS_ERR(sbi->meta_inode)) {
+ f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode");
err = PTR_ERR(sbi->meta_inode);
goto free_sb_buf;
}
err = get_valid_checkpoint(sbi);
- if (err)
+ if (err) {
+ f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint");
goto free_meta_inode;
+ }
/* sanity checking of checkpoint */
err = -EINVAL;
- if (sanity_check_ckpt(raw_super, sbi->ckpt))
+ if (sanity_check_ckpt(sbi)) {
+ f2fs_msg(sb, KERN_ERR, "Invalid F2FS checkpoint");
goto free_cp;
+ }
sbi->total_valid_node_count =
le32_to_cpu(sbi->ckpt->valid_node_count);
INIT_LIST_HEAD(&sbi->dir_inode_list);
spin_lock_init(&sbi->dir_inode_lock);
- /* init super block */
- if (!sb_set_blocksize(sb, sbi->blocksize))
- goto free_cp;
-
init_orphan_info(sbi);
/* setup f2fs internal modules */
err = build_segment_manager(sbi);
- if (err)
+ if (err) {
+ f2fs_msg(sb, KERN_ERR,
+ "Failed to initialize F2FS segment manager");
goto free_sm;
+ }
err = build_node_manager(sbi);
- if (err)
+ if (err) {
+ f2fs_msg(sb, KERN_ERR,
+ "Failed to initialize F2FS node manager");
goto free_nm;
+ }
build_gc_manager(sbi);
/* get an inode for node space */
sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
if (IS_ERR(sbi->node_inode)) {
+ f2fs_msg(sb, KERN_ERR, "Failed to read node inode");
err = PTR_ERR(sbi->node_inode);
goto free_nm;
}
/* if there are nt orphan nodes free them */
err = -EINVAL;
- if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) &&
- recover_orphan_inodes(sbi))
+ if (recover_orphan_inodes(sbi))
goto free_node_inode;
/* read root inode and dentry */
root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
if (IS_ERR(root)) {
+ f2fs_msg(sb, KERN_ERR, "Failed to read root inode");
err = PTR_ERR(root);
goto free_node_inode;
}
}
/* recover fsynced data */
- if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) &&
- !test_opt(sbi, DISABLE_ROLL_FORWARD))
+ if (!test_opt(sbi, DISABLE_ROLL_FORWARD))
recover_fsync_data(sbi);
/* After POR, we can run background GC thread */
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("f2fs");
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
f2fs_inode_cachep = f2fs_kmem_cache_create("f2fs_inode_cache",
sizeof(struct f2fs_inode_info), NULL);
err = create_checkpoint_caches();
if (err)
goto fail;
- return register_filesystem(&f2fs_fs_type);
+ err = register_filesystem(&f2fs_fs_type);
+ if (err)
+ goto fail;
+ f2fs_create_root_stats();
fail:
return err;
}
static void __exit exit_f2fs_fs(void)
{
- destroy_root_stats();
+ f2fs_destroy_root_stats();
unregister_filesystem(&f2fs_fs_type);
destroy_checkpoint_caches();
destroy_gc_caches();
projects / platform / kernel / linux-rpi.git / blobdiff