Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes from Jan Kara: "Fixes for UDF handling of NFS handles and one fix for proper handling of corrupted media" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: saner calling conventions for udf_new_inode() udf: fix the udf_iget() vs. udf_new_inode() races udf: merge the pieces inserting a new non-directory object into directory udf: Set i_generation field udf: Properly detect stale inodes udf: Make udf_read_inode() and udf_iget() return error udf: Avoid infinite loop when processing indirect ICBs udf: Fold udf_fill_inode() into __udf_read_inode() udf: Avoid dir link count to go negative
This commit is contained in:
Linus Torvalds
commit
7ec62d421b
@ -45,7 +45,7 @@ void udf_free_inode(struct inode *inode)
|
||||
udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
|
||||
}
|
||||
|
||||
struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
|
||||
struct inode *udf_new_inode(struct inode *dir, umode_t mode)
|
||||
{
|
||||
struct super_block *sb = dir->i_sb;
|
||||
struct udf_sb_info *sbi = UDF_SB(sb);
|
||||
@ -55,14 +55,12 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
|
||||
struct udf_inode_info *iinfo;
|
||||
struct udf_inode_info *dinfo = UDF_I(dir);
|
||||
struct logicalVolIntegrityDescImpUse *lvidiu;
|
||||
int err;
|
||||
|
||||
inode = new_inode(sb);
|
||||
|
||||
if (!inode) {
|
||||
*err = -ENOMEM;
|
||||
return NULL;
|
||||
}
|
||||
*err = -ENOSPC;
|
||||
if (!inode)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
|
||||
@ -80,21 +78,22 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
|
||||
}
|
||||
if (!iinfo->i_ext.i_data) {
|
||||
iput(inode);
|
||||
*err = -ENOMEM;
|
||||
return NULL;
|
||||
return ERR_PTR(-ENOMEM);
|
||||
}
|
||||
|
||||
err = -ENOSPC;
|
||||
block = udf_new_block(dir->i_sb, NULL,
|
||||
dinfo->i_location.partitionReferenceNum,
|
||||
start, err);
|
||||
if (*err) {
|
||||
start, &err);
|
||||
if (err) {
|
||||
iput(inode);
|
||||
return NULL;
|
||||
return ERR_PTR(err);
|
||||
}
|
||||
|
||||
lvidiu = udf_sb_lvidiu(sb);
|
||||
if (lvidiu) {
|
||||
iinfo->i_unique = lvid_get_unique_id(sb);
|
||||
inode->i_generation = iinfo->i_unique;
|
||||
mutex_lock(&sbi->s_alloc_mutex);
|
||||
if (S_ISDIR(mode))
|
||||
le32_add_cpu(&lvidiu->numDirs, 1);
|
||||
@ -123,9 +122,12 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
|
||||
iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
|
||||
inode->i_mtime = inode->i_atime = inode->i_ctime =
|
||||
iinfo->i_crtime = current_fs_time(inode->i_sb);
|
||||
insert_inode_hash(inode);
|
||||
if (unlikely(insert_inode_locked(inode) < 0)) {
|
||||
make_bad_inode(inode);
|
||||
iput(inode);
|
||||
return ERR_PTR(-EIO);
|
||||
}
|
||||
mark_inode_dirty(inode);
|
||||
|
||||
*err = 0;
|
||||
return inode;
|
||||
}
|
||||
|
||||
163
fs/udf/inode.c
163
fs/udf/inode.c
@ -51,7 +51,6 @@ MODULE_LICENSE("GPL");
|
||||
|
||||
static umode_t udf_convert_permissions(struct fileEntry *);
|
||||
static int udf_update_inode(struct inode *, int);
|
||||
static void udf_fill_inode(struct inode *, struct buffer_head *);
|
||||
static int udf_sync_inode(struct inode *inode);
|
||||
static int udf_alloc_i_data(struct inode *inode, size_t size);
|
||||
static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
|
||||
@ -1271,12 +1270,33 @@ update_time:
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __udf_read_inode(struct inode *inode)
|
||||
/*
|
||||
* Maximum length of linked list formed by ICB hierarchy. The chosen number is
|
||||
* arbitrary - just that we hopefully don't limit any real use of rewritten
|
||||
* inode on write-once media but avoid looping for too long on corrupted media.
|
||||
*/
|
||||
#define UDF_MAX_ICB_NESTING 1024
|
||||
|
||||
static int udf_read_inode(struct inode *inode)
|
||||
{
|
||||
struct buffer_head *bh = NULL;
|
||||
struct fileEntry *fe;
|
||||
struct extendedFileEntry *efe;
|
||||
uint16_t ident;
|
||||
struct udf_inode_info *iinfo = UDF_I(inode);
|
||||
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
|
||||
struct kernel_lb_addr *iloc = &iinfo->i_location;
|
||||
unsigned int link_count;
|
||||
unsigned int indirections = 0;
|
||||
int ret = -EIO;
|
||||
|
||||
reread:
|
||||
if (iloc->logicalBlockNum >=
|
||||
sbi->s_partmaps[iloc->partitionReferenceNum].s_partition_len) {
|
||||
udf_debug("block=%d, partition=%d out of range\n",
|
||||
iloc->logicalBlockNum, iloc->partitionReferenceNum);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set defaults, but the inode is still incomplete!
|
||||
@ -1290,78 +1310,54 @@ static void __udf_read_inode(struct inode *inode)
|
||||
* i_nlink = 1
|
||||
* i_op = NULL;
|
||||
*/
|
||||
bh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 0, &ident);
|
||||
bh = udf_read_ptagged(inode->i_sb, iloc, 0, &ident);
|
||||
if (!bh) {
|
||||
udf_err(inode->i_sb, "(ino %ld) failed !bh\n", inode->i_ino);
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
|
||||
ident != TAG_IDENT_USE) {
|
||||
udf_err(inode->i_sb, "(ino %ld) failed ident=%d\n",
|
||||
inode->i_ino, ident);
|
||||
brelse(bh);
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
goto out;
|
||||
}
|
||||
|
||||
fe = (struct fileEntry *)bh->b_data;
|
||||
efe = (struct extendedFileEntry *)bh->b_data;
|
||||
|
||||
if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
|
||||
struct buffer_head *ibh;
|
||||
|
||||
ibh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 1,
|
||||
&ident);
|
||||
ibh = udf_read_ptagged(inode->i_sb, iloc, 1, &ident);
|
||||
if (ident == TAG_IDENT_IE && ibh) {
|
||||
struct buffer_head *nbh = NULL;
|
||||
struct kernel_lb_addr loc;
|
||||
struct indirectEntry *ie;
|
||||
|
||||
ie = (struct indirectEntry *)ibh->b_data;
|
||||
loc = lelb_to_cpu(ie->indirectICB.extLocation);
|
||||
|
||||
if (ie->indirectICB.extLength &&
|
||||
(nbh = udf_read_ptagged(inode->i_sb, &loc, 0,
|
||||
&ident))) {
|
||||
if (ident == TAG_IDENT_FE ||
|
||||
ident == TAG_IDENT_EFE) {
|
||||
memcpy(&iinfo->i_location,
|
||||
&loc,
|
||||
sizeof(struct kernel_lb_addr));
|
||||
brelse(bh);
|
||||
brelse(ibh);
|
||||
brelse(nbh);
|
||||
__udf_read_inode(inode);
|
||||
return;
|
||||
if (ie->indirectICB.extLength) {
|
||||
brelse(ibh);
|
||||
memcpy(&iinfo->i_location, &loc,
|
||||
sizeof(struct kernel_lb_addr));
|
||||
if (++indirections > UDF_MAX_ICB_NESTING) {
|
||||
udf_err(inode->i_sb,
|
||||
"too many ICBs in ICB hierarchy"
|
||||
" (max %d supported)\n",
|
||||
UDF_MAX_ICB_NESTING);
|
||||
goto out;
|
||||
}
|
||||
brelse(nbh);
|
||||
brelse(bh);
|
||||
goto reread;
|
||||
}
|
||||
}
|
||||
brelse(ibh);
|
||||
} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
|
||||
udf_err(inode->i_sb, "unsupported strategy type: %d\n",
|
||||
le16_to_cpu(fe->icbTag.strategyType));
|
||||
brelse(bh);
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
goto out;
|
||||
}
|
||||
udf_fill_inode(inode, bh);
|
||||
|
||||
brelse(bh);
|
||||
}
|
||||
|
||||
static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
{
|
||||
struct fileEntry *fe;
|
||||
struct extendedFileEntry *efe;
|
||||
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
|
||||
struct udf_inode_info *iinfo = UDF_I(inode);
|
||||
unsigned int link_count;
|
||||
|
||||
fe = (struct fileEntry *)bh->b_data;
|
||||
efe = (struct extendedFileEntry *)bh->b_data;
|
||||
|
||||
if (fe->icbTag.strategyType == cpu_to_le16(4))
|
||||
iinfo->i_strat4096 = 0;
|
||||
else /* if (fe->icbTag.strategyType == cpu_to_le16(4096)) */
|
||||
@ -1378,11 +1374,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
|
||||
iinfo->i_efe = 1;
|
||||
iinfo->i_use = 0;
|
||||
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct extendedFileEntry))) {
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
}
|
||||
ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct extendedFileEntry));
|
||||
if (ret)
|
||||
goto out;
|
||||
memcpy(iinfo->i_ext.i_data,
|
||||
bh->b_data + sizeof(struct extendedFileEntry),
|
||||
inode->i_sb->s_blocksize -
|
||||
@ -1390,11 +1385,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
|
||||
iinfo->i_efe = 0;
|
||||
iinfo->i_use = 0;
|
||||
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct fileEntry))) {
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
}
|
||||
ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct fileEntry));
|
||||
if (ret)
|
||||
goto out;
|
||||
memcpy(iinfo->i_ext.i_data,
|
||||
bh->b_data + sizeof(struct fileEntry),
|
||||
inode->i_sb->s_blocksize - sizeof(struct fileEntry));
|
||||
@ -1404,18 +1398,18 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
iinfo->i_lenAlloc = le32_to_cpu(
|
||||
((struct unallocSpaceEntry *)bh->b_data)->
|
||||
lengthAllocDescs);
|
||||
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct unallocSpaceEntry))) {
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
}
|
||||
ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
|
||||
sizeof(struct unallocSpaceEntry));
|
||||
if (ret)
|
||||
goto out;
|
||||
memcpy(iinfo->i_ext.i_data,
|
||||
bh->b_data + sizeof(struct unallocSpaceEntry),
|
||||
inode->i_sb->s_blocksize -
|
||||
sizeof(struct unallocSpaceEntry));
|
||||
return;
|
||||
return 0;
|
||||
}
|
||||
|
||||
ret = -EIO;
|
||||
read_lock(&sbi->s_cred_lock);
|
||||
i_uid_write(inode, le32_to_cpu(fe->uid));
|
||||
if (!uid_valid(inode->i_uid) ||
|
||||
@ -1441,8 +1435,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
read_unlock(&sbi->s_cred_lock);
|
||||
|
||||
link_count = le16_to_cpu(fe->fileLinkCount);
|
||||
if (!link_count)
|
||||
link_count = 1;
|
||||
if (!link_count) {
|
||||
ret = -ESTALE;
|
||||
goto out;
|
||||
}
|
||||
set_nlink(inode, link_count);
|
||||
|
||||
inode->i_size = le64_to_cpu(fe->informationLength);
|
||||
@ -1488,6 +1484,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs);
|
||||
iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
|
||||
}
|
||||
inode->i_generation = iinfo->i_unique;
|
||||
|
||||
switch (fe->icbTag.fileType) {
|
||||
case ICBTAG_FILE_TYPE_DIRECTORY:
|
||||
@ -1537,8 +1534,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
default:
|
||||
udf_err(inode->i_sb, "(ino %ld) failed unknown file type=%d\n",
|
||||
inode->i_ino, fe->icbTag.fileType);
|
||||
make_bad_inode(inode);
|
||||
return;
|
||||
goto out;
|
||||
}
|
||||
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
|
||||
struct deviceSpec *dsea =
|
||||
@ -1549,8 +1545,12 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
|
||||
le32_to_cpu(dsea->minorDeviceIdent)));
|
||||
/* Developer ID ??? */
|
||||
} else
|
||||
make_bad_inode(inode);
|
||||
goto out;
|
||||
}
|
||||
ret = 0;
|
||||
out:
|
||||
brelse(bh);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int udf_alloc_i_data(struct inode *inode, size_t size)
|
||||
@ -1664,7 +1664,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
|
||||
FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
|
||||
fe->permissions = cpu_to_le32(udfperms);
|
||||
|
||||
if (S_ISDIR(inode->i_mode))
|
||||
if (S_ISDIR(inode->i_mode) && inode->i_nlink > 0)
|
||||
fe->fileLinkCount = cpu_to_le16(inode->i_nlink - 1);
|
||||
else
|
||||
fe->fileLinkCount = cpu_to_le16(inode->i_nlink);
|
||||
@ -1830,32 +1830,23 @@ struct inode *udf_iget(struct super_block *sb, struct kernel_lb_addr *ino)
|
||||
{
|
||||
unsigned long block = udf_get_lb_pblock(sb, ino, 0);
|
||||
struct inode *inode = iget_locked(sb, block);
|
||||
int err;
|
||||
|
||||
if (!inode)
|
||||
return NULL;
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
if (inode->i_state & I_NEW) {
|
||||
memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
|
||||
__udf_read_inode(inode);
|
||||
unlock_new_inode(inode);
|
||||
}
|
||||
|
||||
if (is_bad_inode(inode))
|
||||
goto out_iput;
|
||||
|
||||
if (ino->logicalBlockNum >= UDF_SB(sb)->
|
||||
s_partmaps[ino->partitionReferenceNum].s_partition_len) {
|
||||
udf_debug("block=%d, partition=%d out of range\n",
|
||||
ino->logicalBlockNum, ino->partitionReferenceNum);
|
||||
make_bad_inode(inode);
|
||||
goto out_iput;
|
||||
if (!(inode->i_state & I_NEW))
|
||||
return inode;
|
||||
|
||||
memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
|
||||
err = udf_read_inode(inode);
|
||||
if (err < 0) {
|
||||
iget_failed(inode);
|
||||
return ERR_PTR(err);
|
||||
}
|
||||
unlock_new_inode(inode);
|
||||
|
||||
return inode;
|
||||
|
||||
out_iput:
|
||||
iput(inode);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
int udf_add_aext(struct inode *inode, struct extent_position *epos,
|
||||
|
||||
157
fs/udf/namei.c
157
fs/udf/namei.c
@ -270,9 +270,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
|
||||
NULL, 0),
|
||||
};
|
||||
inode = udf_iget(dir->i_sb, lb);
|
||||
if (!inode) {
|
||||
return ERR_PTR(-EACCES);
|
||||
}
|
||||
if (IS_ERR(inode))
|
||||
return inode;
|
||||
} else
|
||||
#endif /* UDF_RECOVERY */
|
||||
|
||||
@ -285,9 +284,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
|
||||
|
||||
loc = lelb_to_cpu(cfi.icb.extLocation);
|
||||
inode = udf_iget(dir->i_sb, &loc);
|
||||
if (!inode) {
|
||||
return ERR_PTR(-EACCES);
|
||||
}
|
||||
if (IS_ERR(inode))
|
||||
return ERR_CAST(inode);
|
||||
}
|
||||
|
||||
return d_splice_alias(inode, dentry);
|
||||
@ -550,32 +548,18 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
|
||||
return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
|
||||
}
|
||||
|
||||
static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
|
||||
bool excl)
|
||||
static int udf_add_nondir(struct dentry *dentry, struct inode *inode)
|
||||
{
|
||||
struct udf_inode_info *iinfo = UDF_I(inode);
|
||||
struct inode *dir = dentry->d_parent->d_inode;
|
||||
struct udf_fileident_bh fibh;
|
||||
struct inode *inode;
|
||||
struct fileIdentDesc cfi, *fi;
|
||||
int err;
|
||||
struct udf_inode_info *iinfo;
|
||||
|
||||
inode = udf_new_inode(dir, mode, &err);
|
||||
if (!inode) {
|
||||
return err;
|
||||
}
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
inode->i_data.a_ops = &udf_adinicb_aops;
|
||||
else
|
||||
inode->i_data.a_ops = &udf_aops;
|
||||
inode->i_op = &udf_file_inode_operations;
|
||||
inode->i_fop = &udf_file_operations;
|
||||
mark_inode_dirty(inode);
|
||||
|
||||
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
|
||||
if (!fi) {
|
||||
if (unlikely(!fi)) {
|
||||
inode_dec_link_count(inode);
|
||||
unlock_new_inode(inode);
|
||||
iput(inode);
|
||||
return err;
|
||||
}
|
||||
@ -589,23 +573,21 @@ static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
|
||||
if (fibh.sbh != fibh.ebh)
|
||||
brelse(fibh.ebh);
|
||||
brelse(fibh.sbh);
|
||||
unlock_new_inode(inode);
|
||||
d_instantiate(dentry, inode);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
|
||||
bool excl)
|
||||
{
|
||||
struct inode *inode;
|
||||
struct udf_inode_info *iinfo;
|
||||
int err;
|
||||
struct inode *inode = udf_new_inode(dir, mode);
|
||||
|
||||
inode = udf_new_inode(dir, mode, &err);
|
||||
if (!inode)
|
||||
return err;
|
||||
if (IS_ERR(inode))
|
||||
return PTR_ERR(inode);
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
inode->i_data.a_ops = &udf_adinicb_aops;
|
||||
else
|
||||
inode->i_data.a_ops = &udf_aops;
|
||||
@ -613,7 +595,25 @@ static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
inode->i_fop = &udf_file_operations;
|
||||
mark_inode_dirty(inode);
|
||||
|
||||
return udf_add_nondir(dentry, inode);
|
||||
}
|
||||
|
||||
static int udf_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
{
|
||||
struct inode *inode = udf_new_inode(dir, mode);
|
||||
|
||||
if (IS_ERR(inode))
|
||||
return PTR_ERR(inode);
|
||||
|
||||
if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
inode->i_data.a_ops = &udf_adinicb_aops;
|
||||
else
|
||||
inode->i_data.a_ops = &udf_aops;
|
||||
inode->i_op = &udf_file_inode_operations;
|
||||
inode->i_fop = &udf_file_operations;
|
||||
mark_inode_dirty(inode);
|
||||
d_tmpfile(dentry, inode);
|
||||
unlock_new_inode(inode);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -621,44 +621,16 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
|
||||
dev_t rdev)
|
||||
{
|
||||
struct inode *inode;
|
||||
struct udf_fileident_bh fibh;
|
||||
struct fileIdentDesc cfi, *fi;
|
||||
int err;
|
||||
struct udf_inode_info *iinfo;
|
||||
|
||||
if (!old_valid_dev(rdev))
|
||||
return -EINVAL;
|
||||
|
||||
err = -EIO;
|
||||
inode = udf_new_inode(dir, mode, &err);
|
||||
if (!inode)
|
||||
goto out;
|
||||
inode = udf_new_inode(dir, mode);
|
||||
if (IS_ERR(inode))
|
||||
return PTR_ERR(inode);
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
init_special_inode(inode, mode, rdev);
|
||||
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
|
||||
if (!fi) {
|
||||
inode_dec_link_count(inode);
|
||||
iput(inode);
|
||||
return err;
|
||||
}
|
||||
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
|
||||
cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
|
||||
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
|
||||
cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
|
||||
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
|
||||
if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
mark_inode_dirty(dir);
|
||||
mark_inode_dirty(inode);
|
||||
|
||||
if (fibh.sbh != fibh.ebh)
|
||||
brelse(fibh.ebh);
|
||||
brelse(fibh.sbh);
|
||||
d_instantiate(dentry, inode);
|
||||
err = 0;
|
||||
|
||||
out:
|
||||
return err;
|
||||
return udf_add_nondir(dentry, inode);
|
||||
}
|
||||
|
||||
static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
@ -670,10 +642,9 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
struct udf_inode_info *dinfo = UDF_I(dir);
|
||||
struct udf_inode_info *iinfo;
|
||||
|
||||
err = -EIO;
|
||||
inode = udf_new_inode(dir, S_IFDIR | mode, &err);
|
||||
if (!inode)
|
||||
goto out;
|
||||
inode = udf_new_inode(dir, S_IFDIR | mode);
|
||||
if (IS_ERR(inode))
|
||||
return PTR_ERR(inode);
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
inode->i_op = &udf_dir_inode_operations;
|
||||
@ -681,6 +652,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
|
||||
if (!fi) {
|
||||
inode_dec_link_count(inode);
|
||||
unlock_new_inode(inode);
|
||||
iput(inode);
|
||||
goto out;
|
||||
}
|
||||
@ -699,6 +671,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
if (!fi) {
|
||||
clear_nlink(inode);
|
||||
mark_inode_dirty(inode);
|
||||
unlock_new_inode(inode);
|
||||
iput(inode);
|
||||
goto out;
|
||||
}
|
||||
@ -710,6 +683,7 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
||||
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
|
||||
inc_nlink(dir);
|
||||
mark_inode_dirty(dir);
|
||||
unlock_new_inode(inode);
|
||||
d_instantiate(dentry, inode);
|
||||
if (fibh.sbh != fibh.ebh)
|
||||
brelse(fibh.ebh);
|
||||
@ -876,14 +850,11 @@ out:
|
||||
static int udf_symlink(struct inode *dir, struct dentry *dentry,
|
||||
const char *symname)
|
||||
{
|
||||
struct inode *inode;
|
||||
struct inode *inode = udf_new_inode(dir, S_IFLNK | S_IRWXUGO);
|
||||
struct pathComponent *pc;
|
||||
const char *compstart;
|
||||
struct udf_fileident_bh fibh;
|
||||
struct extent_position epos = {};
|
||||
int eoffset, elen = 0;
|
||||
struct fileIdentDesc *fi;
|
||||
struct fileIdentDesc cfi;
|
||||
uint8_t *ea;
|
||||
int err;
|
||||
int block;
|
||||
@ -892,9 +863,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
|
||||
struct udf_inode_info *iinfo;
|
||||
struct super_block *sb = dir->i_sb;
|
||||
|
||||
inode = udf_new_inode(dir, S_IFLNK | S_IRWXUGO, &err);
|
||||
if (!inode)
|
||||
goto out;
|
||||
if (IS_ERR(inode))
|
||||
return PTR_ERR(inode);
|
||||
|
||||
iinfo = UDF_I(inode);
|
||||
down_write(&iinfo->i_data_sem);
|
||||
@ -1012,32 +982,15 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
|
||||
mark_inode_dirty(inode);
|
||||
up_write(&iinfo->i_data_sem);
|
||||
|
||||
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
|
||||
if (!fi)
|
||||
goto out_fail;
|
||||
cfi.icb.extLength = cpu_to_le32(sb->s_blocksize);
|
||||
cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
|
||||
if (UDF_SB(inode->i_sb)->s_lvid_bh) {
|
||||
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
|
||||
cpu_to_le32(lvid_get_unique_id(sb));
|
||||
}
|
||||
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
|
||||
if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
mark_inode_dirty(dir);
|
||||
if (fibh.sbh != fibh.ebh)
|
||||
brelse(fibh.ebh);
|
||||
brelse(fibh.sbh);
|
||||
d_instantiate(dentry, inode);
|
||||
err = 0;
|
||||
|
||||
err = udf_add_nondir(dentry, inode);
|
||||
out:
|
||||
kfree(name);
|
||||
return err;
|
||||
|
||||
out_no_entry:
|
||||
up_write(&iinfo->i_data_sem);
|
||||
out_fail:
|
||||
inode_dec_link_count(inode);
|
||||
unlock_new_inode(inode);
|
||||
iput(inode);
|
||||
goto out;
|
||||
}
|
||||
@ -1222,7 +1175,7 @@ static struct dentry *udf_get_parent(struct dentry *child)
|
||||
struct udf_fileident_bh fibh;
|
||||
|
||||
if (!udf_find_entry(child->d_inode, &dotdot, &fibh, &cfi))
|
||||
goto out_unlock;
|
||||
return ERR_PTR(-EACCES);
|
||||
|
||||
if (fibh.sbh != fibh.ebh)
|
||||
brelse(fibh.ebh);
|
||||
@ -1230,12 +1183,10 @@ static struct dentry *udf_get_parent(struct dentry *child)
|
||||
|
||||
tloc = lelb_to_cpu(cfi.icb.extLocation);
|
||||
inode = udf_iget(child->d_inode->i_sb, &tloc);
|
||||
if (!inode)
|
||||
goto out_unlock;
|
||||
if (IS_ERR(inode))
|
||||
return ERR_CAST(inode);
|
||||
|
||||
return d_obtain_alias(inode);
|
||||
out_unlock:
|
||||
return ERR_PTR(-EACCES);
|
||||
}
|
||||
|
||||
|
||||
@ -1252,8 +1203,8 @@ static struct dentry *udf_nfs_get_inode(struct super_block *sb, u32 block,
|
||||
loc.partitionReferenceNum = partref;
|
||||
inode = udf_iget(sb, &loc);
|
||||
|
||||
if (inode == NULL)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
if (IS_ERR(inode))
|
||||
return ERR_CAST(inode);
|
||||
|
||||
if (generation && inode->i_generation != generation) {
|
||||
iput(inode);
|
||||
|
||||
@ -961,12 +961,14 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
|
||||
|
||||
metadata_fe = udf_iget(sb, &addr);
|
||||
|
||||
if (metadata_fe == NULL)
|
||||
if (IS_ERR(metadata_fe)) {
|
||||
udf_warn(sb, "metadata inode efe not found\n");
|
||||
else if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
|
||||
return metadata_fe;
|
||||
}
|
||||
if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
|
||||
udf_warn(sb, "metadata inode efe does not have short allocation descriptors!\n");
|
||||
iput(metadata_fe);
|
||||
metadata_fe = NULL;
|
||||
return ERR_PTR(-EIO);
|
||||
}
|
||||
|
||||
return metadata_fe;
|
||||
@ -978,6 +980,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
|
||||
struct udf_part_map *map;
|
||||
struct udf_meta_data *mdata;
|
||||
struct kernel_lb_addr addr;
|
||||
struct inode *fe;
|
||||
|
||||
map = &sbi->s_partmaps[partition];
|
||||
mdata = &map->s_type_specific.s_metadata;
|
||||
@ -986,22 +989,24 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
|
||||
udf_debug("Metadata file location: block = %d part = %d\n",
|
||||
mdata->s_meta_file_loc, map->s_partition_num);
|
||||
|
||||
mdata->s_metadata_fe = udf_find_metadata_inode_efe(sb,
|
||||
mdata->s_meta_file_loc, map->s_partition_num);
|
||||
|
||||
if (mdata->s_metadata_fe == NULL) {
|
||||
fe = udf_find_metadata_inode_efe(sb, mdata->s_meta_file_loc,
|
||||
map->s_partition_num);
|
||||
if (IS_ERR(fe)) {
|
||||
/* mirror file entry */
|
||||
udf_debug("Mirror metadata file location: block = %d part = %d\n",
|
||||
mdata->s_mirror_file_loc, map->s_partition_num);
|
||||
|
||||
mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,
|
||||
mdata->s_mirror_file_loc, map->s_partition_num);
|
||||
fe = udf_find_metadata_inode_efe(sb, mdata->s_mirror_file_loc,
|
||||
map->s_partition_num);
|
||||
|
||||
if (mdata->s_mirror_fe == NULL) {
|
||||
if (IS_ERR(fe)) {
|
||||
udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
|
||||
return -EIO;
|
||||
return PTR_ERR(fe);
|
||||
}
|
||||
}
|
||||
mdata->s_mirror_fe = fe;
|
||||
} else
|
||||
mdata->s_metadata_fe = fe;
|
||||
|
||||
|
||||
/*
|
||||
* bitmap file entry
|
||||
@ -1015,15 +1020,16 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
|
||||
udf_debug("Bitmap file location: block = %d part = %d\n",
|
||||
addr.logicalBlockNum, addr.partitionReferenceNum);
|
||||
|
||||
mdata->s_bitmap_fe = udf_iget(sb, &addr);
|
||||
if (mdata->s_bitmap_fe == NULL) {
|
||||
fe = udf_iget(sb, &addr);
|
||||
if (IS_ERR(fe)) {
|
||||
if (sb->s_flags & MS_RDONLY)
|
||||
udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
|
||||
else {
|
||||
udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
|
||||
return -EIO;
|
||||
return PTR_ERR(fe);
|
||||
}
|
||||
}
|
||||
} else
|
||||
mdata->s_bitmap_fe = fe;
|
||||
}
|
||||
|
||||
udf_debug("udf_load_metadata_files Ok\n");
|
||||
@ -1111,13 +1117,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
|
||||
phd->unallocSpaceTable.extPosition),
|
||||
.partitionReferenceNum = p_index,
|
||||
};
|
||||
struct inode *inode;
|
||||
|
||||
map->s_uspace.s_table = udf_iget(sb, &loc);
|
||||
if (!map->s_uspace.s_table) {
|
||||
inode = udf_iget(sb, &loc);
|
||||
if (IS_ERR(inode)) {
|
||||
udf_debug("cannot load unallocSpaceTable (part %d)\n",
|
||||
p_index);
|
||||
return -EIO;
|
||||
return PTR_ERR(inode);
|
||||
}
|
||||
map->s_uspace.s_table = inode;
|
||||
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
|
||||
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
|
||||
p_index, map->s_uspace.s_table->i_ino);
|
||||
@ -1144,14 +1152,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
|
||||
phd->freedSpaceTable.extPosition),
|
||||
.partitionReferenceNum = p_index,
|
||||
};
|
||||
struct inode *inode;
|
||||
|
||||
map->s_fspace.s_table = udf_iget(sb, &loc);
|
||||
if (!map->s_fspace.s_table) {
|
||||
inode = udf_iget(sb, &loc);
|
||||
if (IS_ERR(inode)) {
|
||||
udf_debug("cannot load freedSpaceTable (part %d)\n",
|
||||
p_index);
|
||||
return -EIO;
|
||||
return PTR_ERR(inode);
|
||||
}
|
||||
|
||||
map->s_fspace.s_table = inode;
|
||||
map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
|
||||
udf_debug("freedSpaceTable (part %d) @ %ld\n",
|
||||
p_index, map->s_fspace.s_table->i_ino);
|
||||
@ -1178,6 +1187,7 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
|
||||
struct udf_part_map *map = &sbi->s_partmaps[p_index];
|
||||
sector_t vat_block;
|
||||
struct kernel_lb_addr ino;
|
||||
struct inode *inode;
|
||||
|
||||
/*
|
||||
* VAT file entry is in the last recorded block. Some broken disks have
|
||||
@ -1186,10 +1196,13 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
|
||||
ino.partitionReferenceNum = type1_index;
|
||||
for (vat_block = start_block;
|
||||
vat_block >= map->s_partition_root &&
|
||||
vat_block >= start_block - 3 &&
|
||||
!sbi->s_vat_inode; vat_block--) {
|
||||
vat_block >= start_block - 3; vat_block--) {
|
||||
ino.logicalBlockNum = vat_block - map->s_partition_root;
|
||||
sbi->s_vat_inode = udf_iget(sb, &ino);
|
||||
inode = udf_iget(sb, &ino);
|
||||
if (!IS_ERR(inode)) {
|
||||
sbi->s_vat_inode = inode;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -2205,10 +2218,10 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
|
||||
/* assign inodes by physical block number */
|
||||
/* perhaps it's not extensible enough, but for now ... */
|
||||
inode = udf_iget(sb, &rootdir);
|
||||
if (!inode) {
|
||||
if (IS_ERR(inode)) {
|
||||
udf_err(sb, "Error in udf_iget, block=%d, partition=%d\n",
|
||||
rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
|
||||
ret = -EIO;
|
||||
ret = PTR_ERR(inode);
|
||||
goto error_out;
|
||||
}
|
||||
|
||||
|
||||
@ -143,7 +143,6 @@ extern int udf_expand_file_adinicb(struct inode *);
|
||||
extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
|
||||
extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
|
||||
extern int udf_setsize(struct inode *, loff_t);
|
||||
extern void udf_read_inode(struct inode *);
|
||||
extern void udf_evict_inode(struct inode *);
|
||||
extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
|
||||
extern long udf_block_map(struct inode *, sector_t);
|
||||
@ -209,7 +208,7 @@ extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
|
||||
|
||||
/* ialloc.c */
|
||||
extern void udf_free_inode(struct inode *);
|
||||
extern struct inode *udf_new_inode(struct inode *, umode_t, int *);
|
||||
extern struct inode *udf_new_inode(struct inode *, umode_t);
|
||||
|
||||
/* truncate.c */
|
||||
extern void udf_truncate_tail_extent(struct inode *);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user