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Commit 0b8e58a1 authored by Andreas Dilger's avatar Andreas Dilger Committed by Theodore Ts'o
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ext4: super.c whitespace cleanup 

Cleanup of whitespace and formatting.  Initially driven by confusing indents
for the ext4_{block,inode}_bitmap() et. al. helper routines, but figured I'd
cleanup some other 80-column wrapping and other indenting problems at the
same time.
Signed-off-by: default avatarAndreas Dilger <adilger@sun.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent bfcd3555
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Showing with 61 additions and 56 deletions
fs/ext4/super.c
View file @ 0b8e58a1
......@@ -79,7 +79,7 @@ ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
{
return le32_to_cpu(bg->bg_block_bitmap_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(ext4_fsblk_t)le32_to_cpu(bg->bg_block_bitmap_hi) << 32 : 0);
(ext4_fsblk_t)le32_to_cpu(bg->bg_block_bitmap_hi) << 32 : 0);
}
ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
......@@ -87,7 +87,7 @@ ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
{
return le32_to_cpu(bg->bg_inode_bitmap_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0);
}
ext4_fsblk_t ext4_inode_table(struct super_block *sb,
......@@ -95,7 +95,7 @@ ext4_fsblk_t ext4_inode_table(struct super_block *sb,
{
return le32_to_cpu(bg->bg_inode_table_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
(ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0);
}
__u32 ext4_free_blks_count(struct super_block *sb,
......@@ -103,7 +103,7 @@ __u32 ext4_free_blks_count(struct super_block *sb,
{
return le16_to_cpu(bg->bg_free_blocks_count_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(__u32)le16_to_cpu(bg->bg_free_blocks_count_hi) << 16 : 0);
(__u32)le16_to_cpu(bg->bg_free_blocks_count_hi) << 16 : 0);
}
__u32 ext4_free_inodes_count(struct super_block *sb,
......@@ -111,7 +111,7 @@ __u32 ext4_free_inodes_count(struct super_block *sb,
{
return le16_to_cpu(bg->bg_free_inodes_count_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(__u32)le16_to_cpu(bg->bg_free_inodes_count_hi) << 16 : 0);
(__u32)le16_to_cpu(bg->bg_free_inodes_count_hi) << 16 : 0);
}
__u32 ext4_used_dirs_count(struct super_block *sb,
......@@ -119,7 +119,7 @@ __u32 ext4_used_dirs_count(struct super_block *sb,
{
return le16_to_cpu(bg->bg_used_dirs_count_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(__u32)le16_to_cpu(bg->bg_used_dirs_count_hi) << 16 : 0);
(__u32)le16_to_cpu(bg->bg_used_dirs_count_hi) << 16 : 0);
}
__u32 ext4_itable_unused_count(struct super_block *sb,
......@@ -127,7 +127,7 @@ __u32 ext4_itable_unused_count(struct super_block *sb,
{
return le16_to_cpu(bg->bg_itable_unused_lo) |
(EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ?
(__u32)le16_to_cpu(bg->bg_itable_unused_hi) << 16 : 0);
(__u32)le16_to_cpu(bg->bg_itable_unused_hi) << 16 : 0);
}
void ext4_block_bitmap_set(struct super_block *sb,
......@@ -207,8 +207,7 @@ handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
journal = EXT4_SB(sb)->s_journal;
if (journal) {
if (is_journal_aborted(journal)) {
ext4_abort(sb, __func__,
"Detected aborted journal");
ext4_abort(sb, __func__, "Detected aborted journal");
return ERR_PTR(-EROFS);
}
return jbd2_journal_start(journal, nblocks);
......@@ -436,7 +435,7 @@ void ext4_warning(struct super_block *sb, const char *function,
}
void ext4_grp_locked_error(struct super_block *sb, ext4_group_t grp,
const char *function, const char *fmt, ...)
const char *function, const char *fmt, ...)
__releases(bitlock)
__acquires(bitlock)
{
......@@ -472,7 +471,6 @@ __acquires(bitlock)
return;
}
void ext4_update_dynamic_rev(struct super_block *sb)
{
struct ext4_super_block *es = EXT4_SB(sb)->s_es;
......@@ -638,7 +636,6 @@ static void ext4_put_super(struct super_block *sb)
lock_kernel();
kfree(sbi->s_blockgroup_lock);
kfree(sbi);
return;
}
static struct kmem_cache *ext4_inode_cachep;
......@@ -653,6 +650,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
ei = kmem_cache_alloc(ext4_inode_cachep, GFP_NOFS);
if (!ei)
return NULL;
#ifdef CONFIG_EXT4_FS_POSIX_ACL
ei->i_acl = EXT4_ACL_NOT_CACHED;
ei->i_default_acl = EXT4_ACL_NOT_CACHED;
......@@ -673,6 +671,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
ei->i_allocated_meta_blocks = 0;
ei->i_delalloc_reserved_flag = 0;
spin_lock_init(&(ei->i_block_reservation_lock));
return &ei->vfs_inode;
}
......@@ -879,12 +878,12 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",noauto_da_alloc");
ext4_show_quota_options(seq, sb);
return 0;
}
static struct inode *ext4_nfs_get_inode(struct super_block *sb,
u64 ino, u32 generation)
u64 ino, u32 generation)
{
struct inode *inode;
......@@ -913,14 +912,14 @@ static struct inode *ext4_nfs_get_inode(struct super_block *sb,
}
static struct dentry *ext4_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
int fh_len, int fh_type)
{
return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
ext4_nfs_get_inode);
}
static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
int fh_len, int fh_type)
{
return generic_fh_to_parent(sb, fid, fh_len, fh_type,
ext4_nfs_get_inode);
......@@ -932,7 +931,8 @@ static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid,
* which would prevent try_to_free_buffers() from freeing them, we must use
* jbd2 layer's try_to_free_buffers() function to release them.
*/
static int bdev_try_to_free_page(struct super_block *sb, struct page *page, gfp_t wait)
static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
gfp_t wait)
{
journal_t *journal = EXT4_SB(sb)->s_journal;
......@@ -1133,8 +1133,9 @@ static ext4_fsblk_t get_sb_block(void **data)
if (!options || strncmp(options, "sb=", 3) != 0)
return 1; /* Default location */
options += 3;
/*todo: use simple_strtoll with >32bit ext4 */
/* TODO: use simple_strtoll with >32bit ext4 */
sb_block = simple_strtoul(options, &options, 0);
if (*options && *options != ',') {
printk(KERN_ERR "EXT4-fs: Invalid sb specification: %s\n",
......@@ -1144,6 +1145,7 @@ static ext4_fsblk_t get_sb_block(void **data)
if (*options == ',')
options++;
*data = (void *) options;
return sb_block;
}
......@@ -1626,7 +1628,7 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
printk(KERN_WARNING
"EXT4-fs warning: checktime reached, "
"running e2fsck is recommended\n");
if (!sbi->s_journal)
if (!sbi->s_journal)
es->s_state &= cpu_to_le16(~EXT4_VALID_FS);
if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);
......@@ -1810,7 +1812,7 @@ static int ext4_check_descriptors(struct super_block *sb)
}
ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
sbi->s_es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb));
sbi->s_es->s_free_inodes_count =cpu_to_le32(ext4_count_free_inodes(sb));
return 1;
}
......@@ -1926,6 +1928,7 @@ static void ext4_orphan_cleanup(struct super_block *sb,
#endif
sb->s_flags = s_flags; /* Restore MS_RDONLY status */
}
/*
* Maximal extent format file size.
* Resulting logical blkno at s_maxbytes must fit in our on-disk
......@@ -1976,19 +1979,19 @@ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files)
loff_t res = EXT4_NDIR_BLOCKS;
int meta_blocks;
loff_t upper_limit;
/* This is calculated to be the largest file size for a
* dense, bitmapped file such that the total number of
* sectors in the file, including data and all indirect blocks,
* does not exceed 2^48 -1
* __u32 i_blocks_lo and _u16 i_blocks_high representing the
* total number of 512 bytes blocks of the file
/* This is calculated to be the largest file size for a dense, block
* mapped file such that the file's total number of 512-byte sectors,
* including data and all indirect blocks, does not exceed (2^48 - 1).
*
* __u32 i_blocks_lo and _u16 i_blocks_high represent the total
* number of 512-byte sectors of the file.
*/
if (!has_huge_files || sizeof(blkcnt_t) < sizeof(u64)) {
/*
* !has_huge_files or CONFIG_LBD is not enabled
* implies the inode i_block represent total blocks in
* 512 bytes 32 == size of vfs inode i_blocks * 8
* !has_huge_files or CONFIG_LBD not enabled implies that
* the inode i_block field represents total file blocks in
* 2^32 512-byte sectors == size of vfs inode i_blocks * 8
*/
upper_limit = (1LL << 32) - 1;
......@@ -2030,7 +2033,7 @@ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files)
}
static ext4_fsblk_t descriptor_loc(struct super_block *sb,
ext4_fsblk_t logical_sb_block, int nr)
ext4_fsblk_t logical_sb_block, int nr)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
ext4_group_t bg, first_meta_bg;
......@@ -2044,6 +2047,7 @@ static ext4_fsblk_t descriptor_loc(struct super_block *sb,
bg = sbi->s_desc_per_block * nr;
if (ext4_bg_has_super(sb, bg))
has_super = 1;
return (has_super + ext4_group_first_block_no(sb, bg));
}
......@@ -2148,7 +2152,7 @@ static ssize_t inode_readahead_blks_store(struct ext4_attr *a,
}
static ssize_t sbi_ui_show(struct ext4_attr *a,
struct ext4_sb_info *sbi, char *buf)
struct ext4_sb_info *sbi, char *buf)
{
unsigned int *ui = (unsigned int *) (((char *) sbi) + a->offset);
......@@ -2253,7 +2257,6 @@ static struct kobj_type ext4_ktype = {
static int ext4_fill_super(struct super_block *sb, void *data, int silent)
__releases(kernel_lock)
__acquires(kernel_lock)
{
struct buffer_head *bh;
struct ext4_super_block *es = NULL;
......@@ -2379,7 +2382,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
*/
set_opt(sbi->s_mount_opt, DELALLOC);
if (!parse_options((char *) data, sb, &journal_devnum,
&journal_ioprio, NULL, 0))
goto failed_mount;
......@@ -2442,7 +2444,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
}
if (sb->s_blocksize != blocksize) {
/* Validate the filesystem blocksize */
if (!sb_set_blocksize(sb, blocksize)) {
printk(KERN_ERR "EXT4-fs: bad block size %d.\n",
......@@ -2489,6 +2490,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE)
sb->s_time_gran = 1 << (EXT4_EPOCH_BITS - 2);
}
sbi->s_desc_size = le16_to_cpu(es->s_desc_size);
if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_64BIT)) {
if (sbi->s_desc_size < EXT4_MIN_DESC_SIZE_64BIT ||
......@@ -2501,10 +2503,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
}
} else
sbi->s_desc_size = EXT4_MIN_DESC_SIZE;
sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
goto cantfind_ext4;
sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
if (sbi->s_inodes_per_block == 0)
goto cantfind_ext4;
......@@ -2515,6 +2519,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_mount_state = le16_to_cpu(es->s_state);
sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb));
sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb));
for (i = 0; i < 4; i++)
sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
sbi->s_def_hash_version = es->s_def_hash_version;
......@@ -2566,12 +2571,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount;
}
/*
* It makes no sense for the first data block to be beyond the end
* of the filesystem.
*/
if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {
printk(KERN_WARNING "EXT4-fs: bad geometry: first data"
/*
* It makes no sense for the first data block to be beyond the end
* of the filesystem.
*/
if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {
printk(KERN_WARNING "EXT4-fs: bad geometry: first data"
"block %u is beyond end of filesystem (%llu)\n",
le32_to_cpu(es->s_first_data_block),
ext4_blocks_count(es));
......@@ -3082,6 +3087,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
EXT4_SB(sb)->journal_bdev = bdev;
ext4_init_journal_params(sb, journal);
return journal;
out_journal:
jbd2_journal_destroy(journal);
out_bdev:
......@@ -3116,7 +3122,6 @@ static int ext4_load_journal(struct super_block *sb,
* crash? For recovery, we need to check in advance whether we
* can get read-write access to the device.
*/
if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) {
if (sb->s_flags & MS_RDONLY) {
printk(KERN_INFO "EXT4-fs: INFO: recovery "
......@@ -3234,7 +3239,6 @@ static int ext4_commit_super(struct super_block *sb, int sync)
return error;
}
/*
* Have we just finished recovery? If so, and if we are mounting (or
* remounting) the filesystem readonly, then we will end up with a
......@@ -3485,8 +3489,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
/*
* Make sure the group descriptor checksums
* are sane. If they aren't, refuse to
* remount r/w.
* are sane. If they aren't, refuse to remount r/w.
*/
for (g = 0; g < sbi->s_groups_count; g++) {
struct ext4_group_desc *gdp =
......@@ -3545,6 +3548,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
kfree(old_opts.s_qf_names[i]);
#endif
return 0;
restore_opts:
sb->s_flags = old_sb_flags;
sbi->s_mount_opt = old_opts.s_mount_opt;
......@@ -3628,11 +3632,12 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
le64_to_cpup((void *)es->s_uuid + sizeof(u64));
buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL;
buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL;
return 0;
}
/* Helper function for writing quotas on sync - we need to start transaction before quota file
* is locked for write. Otherwise the are possible deadlocks:
/* Helper function for writing quotas on sync - we need to start transaction
* before quota file is locked for write. Otherwise the are possible deadlocks:
* Process 1 Process 2
* ext4_create() quota_sync()
* jbd2_journal_start() write_dquot()
......@@ -3656,7 +3661,7 @@ static int ext4_write_dquot(struct dquot *dquot)
inode = dquot_to_inode(dquot);
handle = ext4_journal_start(inode,
EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit(dquot);
......@@ -3672,7 +3677,7 @@ static int ext4_acquire_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext4_journal_start(dquot_to_inode(dquot),
EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb));
EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_acquire(dquot);
......@@ -3688,7 +3693,7 @@ static int ext4_release_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext4_journal_start(dquot_to_inode(dquot),
EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle)) {
/* Release dquot anyway to avoid endless cycle in dqput() */
dquot_release(dquot);
......@@ -3736,7 +3741,7 @@ static int ext4_write_info(struct super_block *sb, int type)
static int ext4_quota_on_mount(struct super_block *sb, int type)
{
return vfs_quota_on_mount(sb, EXT4_SB(sb)->s_qf_names[type],
EXT4_SB(sb)->s_jquota_fmt, type);
EXT4_SB(sb)->s_jquota_fmt, type);
}
/*
......@@ -3907,10 +3912,10 @@ out:
#endif
static int ext4_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data, struct vfsmount *mnt)
static int ext4_get_sb(struct file_system_type *fs_type, int flags,
const char *dev_name, void *data, struct vfsmount *mnt)
{
return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super, mnt);
return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
}
static struct file_system_type ext4_fs_type = {
......@@ -3922,14 +3927,14 @@ static struct file_system_type ext4_fs_type = {
};
#ifdef CONFIG_EXT4DEV_COMPAT
static int ext4dev_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data, struct vfsmount *mnt)
static int ext4dev_get_sb(struct file_system_type *fs_type, int flags,
const char *dev_name, void *data,struct vfsmount *mnt)
{
printk(KERN_WARNING "EXT4-fs: Update your userspace programs "
"to mount using ext4\n");
printk(KERN_WARNING "EXT4-fs: ext4dev backwards compatibility "
"will go away by 2.6.31\n");
return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super, mnt);
return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
}
static struct file_system_type ext4dev_fs_type = {
......
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