summaryrefslogtreecommitdiffstats
path: root/fs/udf
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2020-09-25 12:29:54 +0200
committerJan Kara <jack@suse.cz>2020-09-29 17:21:54 +0200
commit382a2287bf9cd283206764572f66ab12657218aa (patch)
tree4dc55d8add1d16da11bdf262c1a86f41f8b49882 /fs/udf
parentudf: Avoid accessing uninitialized data on failed inode read (diff)
downloadlinux-382a2287bf9cd283206764572f66ab12657218aa.tar.xz
linux-382a2287bf9cd283206764572f66ab12657218aa.zip
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>
Diffstat (limited to 'fs/udf')
-rw-r--r--fs/udf/directory.c2
-rw-r--r--fs/udf/file.c7
-rw-r--r--fs/udf/ialloc.c14
-rw-r--r--fs/udf/inode.c36
-rw-r--r--fs/udf/misc.c6
-rw-r--r--fs/udf/namei.c7
-rw-r--r--fs/udf/partition.c2
-rw-r--r--fs/udf/super.c4
-rw-r--r--fs/udf/symlink.c2
-rw-r--r--fs/udf/udf_i.h6
10 files changed, 39 insertions, 47 deletions
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index d9523013096f..73720320f0ab 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -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)),
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 628941a6b79a..ad8eefad27d7 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -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;
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 0adb40718a5d..84ed23edebfd 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -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);
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 566118417e56..bb89c3e43212 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -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) +
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 401e64cde1be..eab94527340d 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -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;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 77b6d89b9bcd..e169d8fe35b5 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -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)),
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index 090baff83990..4cbf40575965 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -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;
}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index a76025de6710..413a50599d1c 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -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 =
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index 25ff91c7e94a..c973db239604 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -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);
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index 4245d1f63258..06ff7006b822 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -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;