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udf: Remove pointless union in udf_inode_info 

We use only a single member out of the i_ext union in udf_inode_info.
Just remove the pointless union.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2020-09-25 12:29:54 +02:00
parent 044e2e26f2
commit 382a2287bf
10 changed files with 39 additions and 47 deletions
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2
fs/udf/directory.c
View File

@ -34,7 +34,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
fibh->soffset = fibh->eoffset;
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
fi = udf_get_fileident(iinfo->i_ext.i_data -
fi = udf_get_fileident(iinfo->i_data -
(iinfo->i_efe ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),

7
fs/udf/file.c
View File

@ -50,7 +50,7 @@ static void __udf_adinicb_readpage(struct page *page)
* So just sample it once and use the same value everywhere.
*/
kaddr = kmap_atomic(page);
memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, isize);
memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
memset(kaddr + isize, 0, PAGE_SIZE - isize);
flush_dcache_page(page);
SetPageUptodate(page);
@ -76,8 +76,7 @@ static int udf_adinicb_writepage(struct page *page,
BUG_ON(!PageLocked(page));
kaddr = kmap_atomic(page);
memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
i_size_read(inode));
memcpy(iinfo->i_data + iinfo->i_lenEAttr, kaddr, i_size_read(inode));
SetPageUptodate(page);
kunmap_atomic(kaddr);
mark_inode_dirty(inode);
@ -215,7 +214,7 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return put_user(UDF_I(inode)->i_lenEAttr, (int __user *)arg);
case UDF_GETEABLOCK:
return copy_to_user((char __user *)arg,
UDF_I(inode)->i_ext.i_data,
UDF_I(inode)->i_data,
UDF_I(inode)->i_lenEAttr) ? -EFAULT : 0;
default:
return -ENOIOCTLCMD;

14
fs/udf/ialloc.c
View File

@ -67,16 +67,16 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode)
iinfo->i_efe = 1;
if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry),
GFP_KERNEL);
iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry),
GFP_KERNEL);
} else {
iinfo->i_efe = 0;
iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct fileEntry),
GFP_KERNEL);
iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct fileEntry),
GFP_KERNEL);
}
if (!iinfo->i_ext.i_data) {
if (!iinfo->i_data) {
iput(inode);
return ERR_PTR(-ENOMEM);
}

36
fs/udf/inode.c
View File

@ -157,8 +157,8 @@ void udf_evict_inode(struct inode *inode)
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode);
clear_inode(inode);
kfree(iinfo->i_ext.i_data);
iinfo->i_ext.i_data = NULL;
kfree(iinfo->i_data);
iinfo->i_data = NULL;
udf_clear_extent_cache(inode);
if (want_delete) {
udf_free_inode(inode);
@ -288,14 +288,14 @@ int udf_expand_file_adinicb(struct inode *inode)
kaddr = kmap_atomic(page);
memset(kaddr + iinfo->i_lenAlloc, 0x00,
PAGE_SIZE - iinfo->i_lenAlloc);
memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr,
memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr,
iinfo->i_lenAlloc);
flush_dcache_page(page);
SetPageUptodate(page);
kunmap_atomic(kaddr);
}
down_write(&iinfo->i_data_sem);
memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr, 0x00,
memset(iinfo->i_data + iinfo->i_lenEAttr, 0x00,
iinfo->i_lenAlloc);
iinfo->i_lenAlloc = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
@ -311,8 +311,7 @@ int udf_expand_file_adinicb(struct inode *inode)
lock_page(page);
down_write(&iinfo->i_data_sem);
kaddr = kmap_atomic(page);
memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
inode->i_size);
memcpy(iinfo->i_data + iinfo->i_lenEAttr, kaddr, inode->i_size);
kunmap_atomic(kaddr);
unlock_page(page);
iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
@ -399,8 +398,7 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
}
mark_buffer_dirty_inode(dbh, inode);
memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr, 0,
iinfo->i_lenAlloc);
memset(iinfo->i_data + iinfo->i_lenEAttr, 0, iinfo->i_lenAlloc);
iinfo->i_lenAlloc = 0;
eloc.logicalBlockNum = *block;
eloc.partitionReferenceNum =
@ -1263,7 +1261,7 @@ set_size:
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
down_write(&iinfo->i_data_sem);
udf_clear_extent_cache(inode);
memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr + newsize,
memset(iinfo->i_data + iinfo->i_lenEAttr + newsize,
0x00, bsize - newsize -
udf_file_entry_alloc_offset(inode));
iinfo->i_lenAlloc = newsize;
@ -1414,7 +1412,7 @@ reread:
sizeof(struct extendedFileEntry));
if (ret)
goto out;
memcpy(iinfo->i_ext.i_data,
memcpy(iinfo->i_data,
bh->b_data + sizeof(struct extendedFileEntry),
bs - sizeof(struct extendedFileEntry));
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
@ -1423,7 +1421,7 @@ reread:
ret = udf_alloc_i_data(inode, bs - sizeof(struct fileEntry));
if (ret)
goto out;
memcpy(iinfo->i_ext.i_data,
memcpy(iinfo->i_data,
bh->b_data + sizeof(struct fileEntry),
bs - sizeof(struct fileEntry));
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
@ -1436,7 +1434,7 @@ reread:
sizeof(struct unallocSpaceEntry));
if (ret)
goto out;
memcpy(iinfo->i_ext.i_data,
memcpy(iinfo->i_data,
bh->b_data + sizeof(struct unallocSpaceEntry),
bs - sizeof(struct unallocSpaceEntry));
return 0;
@ -1617,8 +1615,8 @@ out:
static int udf_alloc_i_data(struct inode *inode, size_t size)
{
struct udf_inode_info *iinfo = UDF_I(inode);
iinfo->i_ext.i_data = kmalloc(size, GFP_KERNEL);
if (!iinfo->i_ext.i_data)
iinfo->i_data = kmalloc(size, GFP_KERNEL);
if (!iinfo->i_data)
return -ENOMEM;
return 0;
}
@ -1709,7 +1707,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
use->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
memcpy(bh->b_data + sizeof(struct unallocSpaceEntry),
iinfo->i_ext.i_data, inode->i_sb->s_blocksize -
iinfo->i_data, inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry));
use->descTag.tagIdent = cpu_to_le16(TAG_IDENT_USE);
crclen = sizeof(struct unallocSpaceEntry);
@ -1775,7 +1773,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
if (iinfo->i_efe == 0) {
memcpy(bh->b_data + sizeof(struct fileEntry),
iinfo->i_ext.i_data,
iinfo->i_data,
inode->i_sb->s_blocksize - sizeof(struct fileEntry));
fe->logicalBlocksRecorded = cpu_to_le64(lb_recorded);
@ -1794,7 +1792,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
crclen = sizeof(struct fileEntry);
} else {
memcpy(bh->b_data + sizeof(struct extendedFileEntry),
iinfo->i_ext.i_data,
iinfo->i_data,
inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry));
efe->objectSize =
@ -2090,7 +2088,7 @@ void udf_write_aext(struct inode *inode, struct extent_position *epos,
struct udf_inode_info *iinfo = UDF_I(inode);
if (!epos->bh)
ptr = iinfo->i_ext.i_data + epos->offset -
ptr = iinfo->i_data + epos->offset -
udf_file_entry_alloc_offset(inode) +
iinfo->i_lenEAttr;
else
@ -2182,7 +2180,7 @@ int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
if (!epos->bh) {
if (!epos->offset)
epos->offset = udf_file_entry_alloc_offset(inode);
ptr = iinfo->i_ext.i_data + epos->offset -
ptr = iinfo->i_data + epos->offset -
udf_file_entry_alloc_offset(inode) +
iinfo->i_lenEAttr;
alen = udf_file_entry_alloc_offset(inode) +

6
fs/udf/misc.c
View File

@ -52,9 +52,9 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
uint16_t crclen;
struct udf_inode_info *iinfo = UDF_I(inode);
ea = iinfo->i_ext.i_data;
ea = iinfo->i_data;
if (iinfo->i_lenEAttr) {
ad = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
ad = iinfo->i_data + iinfo->i_lenEAttr;
} else {
ad = ea;
size += sizeof(struct extendedAttrHeaderDesc);
@ -153,7 +153,7 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
uint32_t offset;
struct udf_inode_info *iinfo = UDF_I(inode);
ea = iinfo->i_ext.i_data;
ea = iinfo->i_data;
if (iinfo->i_lenEAttr) {
struct extendedAttrHeaderDesc *eahd;

7
fs/udf/namei.c
View File

@ -460,8 +460,7 @@ add:
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
block = dinfo->i_location.logicalBlockNum;
fi = (struct fileIdentDesc *)
(dinfo->i_ext.i_data +
fibh->soffset -
(dinfo->i_data + fibh->soffset -
udf_ext0_offset(dir) +
dinfo->i_lenEAttr);
} else {
@ -940,7 +939,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
mark_buffer_dirty_inode(epos.bh, inode);
ea = epos.bh->b_data + udf_ext0_offset(inode);
} else
ea = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
ea = iinfo->i_data + iinfo->i_lenEAttr;
eoffset = sb->s_blocksize - udf_ext0_offset(inode);
pc = (struct pathComponent *)ea;
@ -1120,7 +1119,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
retval = -EIO;
if (old_iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
dir_fi = udf_get_fileident(
old_iinfo->i_ext.i_data -
old_iinfo->i_data -
(old_iinfo->i_efe ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),

2
fs/udf/partition.c
View File

@ -65,7 +65,7 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
}
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
loc = le32_to_cpu(((__le32 *)(iinfo->i_ext.i_data +
loc = le32_to_cpu(((__le32 *)(iinfo->i_data +
vdata->s_start_offset))[block]);
goto translate;
}

4
fs/udf/super.c
View File

@ -168,7 +168,7 @@ static void init_once(void *foo)
{
struct udf_inode_info *ei = (struct udf_inode_info *)foo;
ei->i_ext.i_data = NULL;
ei->i_data = NULL;
inode_init_once(&ei->vfs_inode);
}
@ -1202,7 +1202,7 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
vat20 = (struct virtualAllocationTable20 *)bh->b_data;
} else {
vat20 = (struct virtualAllocationTable20 *)
vati->i_ext.i_data;
vati->i_data;
}
map->s_type_specific.s_virtual.s_start_offset =

2
fs/udf/symlink.c
View File

@ -122,7 +122,7 @@ static int udf_symlink_filler(struct file *file, struct page *page)
down_read(&iinfo->i_data_sem);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
symlink = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
symlink = iinfo->i_data + iinfo->i_lenEAttr;
} else {
bh = sb_bread(inode->i_sb, pos);

6
fs/udf/udf_i.h
View File

@ -45,11 +45,7 @@ struct udf_inode_info {
unsigned i_strat4096 : 1;
unsigned i_streamdir : 1;
unsigned reserved : 25;
union {
struct short_ad *i_sad;
struct long_ad *i_lad;
__u8 *i_data;
} i_ext;
__u8 *i_data;
struct kernel_lb_addr i_locStreamdir;
__u64 i_lenStreams;
struct rw_semaphore i_data_sem;