static char *jffs2_getlink(struct dentry *dentry)
{
struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
char *buf;
int ret;
down(&f->sem);
if (!f->metadata) {
up(&f->sem);
printk(KERN_NOTICE "No metadata for symlink inode #%lu\n", dentry->d_inode->i_ino);
return ERR_PTR(-EINVAL);
}
buf = kmalloc(f->metadata->size+1, GFP_USER);
if (!buf) {
up(&f->sem);
return ERR_PTR(-ENOMEM);
}
buf[f->metadata->size]=0;
ret = jffs2_read_dnode(JFFS2_SB_INFO(dentry->d_inode->i_sb), f->metadata, buf, 0, f->metadata->size);
up(&f->sem);
if (ret) {
kfree(buf);
return ERR_PTR(ret);
}
return buf;
}
int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
{
struct jffs2_full_dnode *old_metadata, *new_metadata;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_raw_inode *ri;
union jffs2_device_node dev;
unsigned char *mdata = NULL;
int mdatalen = 0;
unsigned int ivalid;
uint32_t alloclen;
int ret;
int alloc_type = ALLOC_NORMAL;
jffs2_dbg(1, "%s(): ino #%lu\n", __func__, inode->i_ino);
/* Special cases - we don't want more than one data node
for these types on the medium at any time. So setattr
must read the original data associated with the node
(i.e. the device numbers or the target name) and write
it out again with the appropriate data attached */
if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
/* For these, we don't actually need to read the old node */
mdatalen = jffs2_encode_dev(&dev, inode->i_rdev);
mdata = (char *)&dev;
jffs2_dbg(1, "%s(): Writing %d bytes of kdev_t\n",
__func__, mdatalen);
} else if (S_ISLNK(inode->i_mode)) {
mutex_lock(&f->sem);
mdatalen = f->metadata->size;
mdata = kmalloc(f->metadata->size, GFP_USER);
if (!mdata) {
mutex_unlock(&f->sem);
return -ENOMEM;
}
ret = jffs2_read_dnode(c, f, f->metadata, mdata, 0, mdatalen);
if (ret) {
mutex_unlock(&f->sem);
kfree(mdata);
return ret;
}
mutex_unlock(&f->sem);
jffs2_dbg(1, "%s(): Writing %d bytes of symlink target\n",
__func__, mdatalen);
}
ri = jffs2_alloc_raw_inode();
if (!ri) {
if (S_ISLNK(inode->i_mode))
kfree(mdata);
return -ENOMEM;
}
ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
return ret;
}
mutex_lock(&f->sem);
ivalid = iattr->ia_valid;
ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri->totlen = cpu_to_je32(sizeof(*ri) + mdatalen);
ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
ri->ino = cpu_to_je32(inode->i_ino);
ri->version = cpu_to_je32(++f->highest_version);
ri->uid = cpu_to_je16((ivalid & ATTR_UID)?
from_kuid(&init_user_ns, iattr->ia_uid):i_uid_read(inode));
ri->gid = cpu_to_je16((ivalid & ATTR_GID)?
from_kgid(&init_user_ns, iattr->ia_gid):i_gid_read(inode));
if (ivalid & ATTR_MODE)
ri->mode = cpu_to_jemode(iattr->ia_mode);
else
ri->mode = cpu_to_jemode(inode->i_mode);
ri->isize = cpu_to_je32((ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size);
ri->atime = cpu_to_je32(I_SEC((ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime));
ri->mtime = cpu_to_je32(I_SEC((ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime));
ri->ctime = cpu_to_je32(I_SEC((ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime));
ri->offset = cpu_to_je32(0);
ri->csize = ri->dsize = cpu_to_je32(mdatalen);
ri->compr = JFFS2_COMPR_NONE;
if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
/* It's an extension. Make it a hole node */
ri->compr = JFFS2_COMPR_ZERO;
ri->dsize = cpu_to_je32(iattr->ia_size - inode->i_size);
ri->offset = cpu_to_je32(inode->i_size);
} else if (ivalid & ATTR_SIZE && !iattr->ia_size) {
/* For truncate-to-zero, treat it as deletion because
it'll always be obsoleting all previous nodes */
alloc_type = ALLOC_DELETION;
}
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
if (mdatalen)
ri->data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
else
ri->data_crc = cpu_to_je32(0);
new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, alloc_type);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
if (IS_ERR(new_metadata)) {
jffs2_complete_reservation(c);
jffs2_free_raw_inode(ri);
mutex_unlock(&f->sem);
return PTR_ERR(new_metadata);
}
/* It worked. Update the inode */
inode->i_atime = ITIME(je32_to_cpu(ri->atime));
inode->i_ctime = ITIME(je32_to_cpu(ri->ctime));
inode->i_mtime = ITIME(je32_to_cpu(ri->mtime));
inode->i_mode = jemode_to_cpu(ri->mode);
i_uid_write(inode, je16_to_cpu(ri->uid));
i_gid_write(inode, je16_to_cpu(ri->gid));
old_metadata = f->metadata;
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
jffs2_truncate_fragtree (c, &f->fragtree, iattr->ia_size);
if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
jffs2_add_full_dnode_to_inode(c, f, new_metadata);
inode->i_size = iattr->ia_size;
inode->i_blocks = (inode->i_size + 511) >> 9;
f->metadata = NULL;
} else {
int jffs2_setattr (struct dentry *dentry, struct iattr *iattr)
{
struct jffs2_full_dnode *old_metadata, *new_metadata;
struct inode *inode = dentry->d_inode;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_raw_inode *ri;
unsigned short dev;
unsigned char *mdata = NULL;
int mdatalen = 0;
unsigned int ivalid;
__u32 phys_ofs, alloclen;
int ret;
D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
ret = inode_change_ok(inode, iattr);
if (ret)
return ret;
/* Special cases - we don't want more than one data node
for these types on the medium at any time. So setattr
must read the original data associated with the node
(i.e. the device numbers or the target name) and write
it out again with the appropriate data attached */
if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
/* For these, we don't actually need to read the old node */
dev = (MAJOR(to_kdev_t(dentry->d_inode->i_rdev)) << 8) |
MINOR(to_kdev_t(dentry->d_inode->i_rdev));
mdata = (char *)&dev;
mdatalen = sizeof(dev);
D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of kdev_t\n", mdatalen));
} else if (S_ISLNK(inode->i_mode)) {
mdatalen = f->metadata->size;
mdata = kmalloc(f->metadata->size, GFP_USER);
if (!mdata)
return -ENOMEM;
ret = jffs2_read_dnode(c, f->metadata, mdata, 0, mdatalen);
if (ret) {
kfree(mdata);
return ret;
}
D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of symlink target\n", mdatalen));
}
ri = jffs2_alloc_raw_inode();
if (!ri) {
if (S_ISLNK(inode->i_mode))
kfree(mdata);
return -ENOMEM;
}
ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen, ALLOC_NORMAL);
if (ret) {
jffs2_free_raw_inode(ri);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
return ret;
}
down(&f->sem);
ivalid = iattr->ia_valid;
ri->magic = JFFS2_MAGIC_BITMASK;
ri->nodetype = JFFS2_NODETYPE_INODE;
ri->totlen = sizeof(*ri) + mdatalen;
ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
ri->ino = inode->i_ino;
ri->version = ++f->highest_version;
ri->mode = (ivalid & ATTR_MODE)?iattr->ia_mode:inode->i_mode;
ri->uid = (ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid;
ri->gid = (ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid;
if (ivalid & ATTR_MODE && ri->mode & S_ISGID &&
!in_group_p(ri->gid) && !capable(CAP_FSETID))
ri->mode &= ~S_ISGID;
ri->isize = (ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size;
ri->atime = (ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime;
ri->mtime = (ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime;
ri->ctime = (ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime;
ri->offset = 0;
ri->csize = ri->dsize = mdatalen;
ri->compr = JFFS2_COMPR_NONE;
if (inode->i_size < ri->isize) {
/* It's an extension. Make it a hole node */
ri->compr = JFFS2_COMPR_ZERO;
ri->dsize = ri->isize - inode->i_size;
ri->offset = inode->i_size;
}
ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
if (mdatalen)
ri->data_crc = crc32(0, mdata, mdatalen);
else
ri->data_crc = 0;
new_metadata = jffs2_write_dnode(inode, ri, mdata, mdatalen, phys_ofs, NULL);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
jffs2_complete_reservation(c);
if (IS_ERR(new_metadata)) {
jffs2_free_raw_inode(ri);
up(&f->sem);
return PTR_ERR(new_metadata);
}
/* It worked. Update the inode */
inode->i_atime = ri->atime;
inode->i_ctime = ri->ctime;
inode->i_mtime = ri->mtime;
inode->i_mode = ri->mode;
inode->i_uid = ri->uid;
inode->i_gid = ri->gid;
old_metadata = f->metadata;
if (inode->i_size > ri->isize) {
vmtruncate(inode, ri->isize);
jffs2_truncate_fraglist (c, &f->fraglist, ri->isize);
}
if (inode->i_size < ri->isize) {
jffs2_add_full_dnode_to_inode(c, f, new_metadata);
inode->i_size = ri->isize;
f->metadata = NULL;
} else {
f->metadata = new_metadata;
}
if (old_metadata) {
jffs2_mark_node_obsolete(c, old_metadata->raw);
jffs2_free_full_dnode(old_metadata);
}
jffs2_free_raw_inode(ri);
up(&f->sem);
return 0;
}
int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
{
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_node_frag *frag = f->fraglist;
__u32 offset = pg->index << PAGE_CACHE_SHIFT;
__u32 end = offset + PAGE_CACHE_SIZE;
unsigned char *pg_buf;
int ret;
D1(printk(KERN_DEBUG "jffs2_do_readpage_nolock(): ino #%lu, page at offset 0x%x\n", inode->i_ino, offset));
if (!PageLocked(pg))
PAGE_BUG(pg);
while(frag && frag->ofs + frag->size <= offset) {
// D1(printk(KERN_DEBUG "skipping frag %d-%d; before the region we care about\n", frag->ofs, frag->ofs + frag->size));
frag = frag->next;
}
pg_buf = kmap(pg);
/* XXX FIXME: Where a single physical node actually shows up in two
frags, we read it twice. Don't do that. */
/* Now we're pointing at the first frag which overlaps our page */
while(offset < end) {
D2(printk(KERN_DEBUG "jffs2_readpage: offset %d, end %d\n", offset, end));
if (!frag || frag->ofs > offset) {
__u32 holesize = end - offset;
if (frag) {
D1(printk(KERN_NOTICE "Eep. Hole in ino %ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", inode->i_ino, frag->ofs, offset));
holesize = min(holesize, frag->ofs - offset);
D1(jffs2_print_frag_list(f));
}
D1(printk(KERN_DEBUG "Filling non-frag hole from %d-%d\n", offset, offset+holesize));
memset(pg_buf, 0, holesize);
pg_buf += holesize;
offset += holesize;
continue;
} else if (frag->ofs < offset && (offset & (PAGE_CACHE_SIZE-1)) != 0) {
D1(printk(KERN_NOTICE "Eep. Overlap in ino #%ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n",
inode->i_ino, frag->ofs, offset));
D1(jffs2_print_frag_list(f));
memset(pg_buf, 0, end - offset);
ClearPageUptodate(pg);
SetPageError(pg);
kunmap(pg);
return -EIO;
} else if (!frag->node) {
__u32 holeend = min(end, frag->ofs + frag->size);
D1(printk(KERN_DEBUG "Filling frag hole from %d-%d (frag 0x%x 0x%x)\n", offset, holeend, frag->ofs, frag->ofs + frag->size));
memset(pg_buf, 0, holeend - offset);
pg_buf += holeend - offset;
offset = holeend;
frag = frag->next;
continue;
} else {
__u32 readlen;
__u32 fragofs; /* offset within the frag to start reading */
fragofs = offset - frag->ofs;
readlen = min(frag->size - fragofs, end - offset);
D1(printk(KERN_DEBUG "Reading %d-%d from node at 0x%x\n", frag->ofs+fragofs,
fragofs+frag->ofs+readlen, frag->node->raw->flash_offset & ~3));
ret = jffs2_read_dnode(c, frag->node, pg_buf, fragofs + frag->ofs - frag->node->ofs, readlen);
D2(printk(KERN_DEBUG "node read done\n"));
if (ret) {
D1(printk(KERN_DEBUG"jffs2_readpage error %d\n",ret));
memset(pg_buf, 0, readlen);
ClearPageUptodate(pg);
SetPageError(pg);
kunmap(pg);
return ret;
}
pg_buf += readlen;
offset += readlen;
frag = frag->next;
D2(printk(KERN_DEBUG "node read was OK. Looping\n"));
}
}
D2(printk(KERN_DEBUG "readpage finishing\n"));
SetPageUptodate(pg);
ClearPageError(pg);
flush_dcache_page(pg);
kunmap(pg);
D1(printk(KERN_DEBUG "readpage finished\n"));
return 0;
}
static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
{
struct jffs2_full_dnode *old_metadata, *new_metadata;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_raw_inode *ri;
unsigned short dev;
unsigned char *mdata = NULL;
int mdatalen = 0;
unsigned int ivalid;
uint32_t phys_ofs, alloclen;
int ret;
D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
ret = inode_change_ok(inode, iattr);
if (ret)
return ret;
/* Special cases - we don't want more than one data node
for these types on the medium at any time. So setattr
must read the original data associated with the node
(i.e. the device numbers or the target name) and write
it out again with the appropriate data attached */
if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
/* For these, we don't actually need to read the old node */
dev = old_encode_dev(inode->i_rdev);
mdata = (char *)&dev;
mdatalen = sizeof(dev);
D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of kdev_t\n", mdatalen));
} else if (S_ISLNK(inode->i_mode)) {
mdatalen = f->metadata->size;
mdata = kmalloc(f->metadata->size, GFP_USER);
if (!mdata)
return -ENOMEM;
ret = jffs2_read_dnode(c, f, f->metadata, mdata, 0, mdatalen);
if (ret) {
kfree(mdata);
return ret;
}
D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of symlink target\n", mdatalen));
}
ri = jffs2_alloc_raw_inode();
if (!ri) {
if (S_ISLNK(inode->i_mode))
kfree(mdata);
return -ENOMEM;
}
ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
if (S_ISLNK(inode->i_mode & S_IFMT))
kfree(mdata);
return ret;
}
down(&f->sem);
ivalid = iattr->ia_valid;
ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri->totlen = cpu_to_je32(sizeof(*ri) + mdatalen);
ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
ri->ino = cpu_to_je32(inode->i_ino);
ri->version = cpu_to_je32(++f->highest_version);
ri->uid = cpu_to_je16((ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid);
ri->gid = cpu_to_je16((ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid);
if (ivalid & ATTR_MODE)
if (iattr->ia_mode & S_ISGID &&
!in_group_p(je16_to_cpu(ri->gid)) && !capable(CAP_FSETID))
ri->mode = cpu_to_jemode(iattr->ia_mode & ~S_ISGID);
else
ri->mode = cpu_to_jemode(iattr->ia_mode);
else
ri->mode = cpu_to_jemode(inode->i_mode);
ri->isize = cpu_to_je32((ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size);
ri->atime = cpu_to_je32(I_SEC((ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime));
ri->mtime = cpu_to_je32(I_SEC((ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime));
ri->ctime = cpu_to_je32(I_SEC((ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime));
ri->offset = cpu_to_je32(0);
ri->csize = ri->dsize = cpu_to_je32(mdatalen);
ri->compr = JFFS2_COMPR_NONE;
if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
/* It's an extension. Make it a hole node */
ri->compr = JFFS2_COMPR_ZERO;
ri->dsize = cpu_to_je32(iattr->ia_size - inode->i_size);
ri->offset = cpu_to_je32(inode->i_size);
}
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
if (mdatalen)
ri->data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
else
ri->data_crc = cpu_to_je32(0);
new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, phys_ofs, ALLOC_NORMAL);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
if (IS_ERR(new_metadata)) {
jffs2_complete_reservation(c);
jffs2_free_raw_inode(ri);
up(&f->sem);
return PTR_ERR(new_metadata);
}
/* It worked. Update the inode */
inode->i_atime = ITIME(je32_to_cpu(ri->atime));
inode->i_ctime = ITIME(je32_to_cpu(ri->ctime));
inode->i_mtime = ITIME(je32_to_cpu(ri->mtime));
inode->i_mode = jemode_to_cpu(ri->mode);
inode->i_uid = je16_to_cpu(ri->uid);
inode->i_gid = je16_to_cpu(ri->gid);
old_metadata = f->metadata;
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
jffs2_truncate_fragtree (c, &f->fragtree, iattr->ia_size);
if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
jffs2_add_full_dnode_to_inode(c, f, new_metadata);
inode->i_size = iattr->ia_size;
f->metadata = NULL;
} else {
f->metadata = new_metadata;
}
if (old_metadata) {
jffs2_mark_node_obsolete(c, old_metadata->raw);
jffs2_free_full_dnode(old_metadata);
}
jffs2_free_raw_inode(ri);
up(&f->sem);
jffs2_complete_reservation(c);
/* We have to do the vmtruncate() without f->sem held, since
some pages may be locked and waiting for it in readpage().
We are protected from a simultaneous write() extending i_size
back past iattr->ia_size, because do_truncate() holds the
generic inode semaphore. */
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
vmtruncate(inode, iattr->ia_size);
return 0;
}
void jffs2_read_inode (struct inode *inode)
{
struct jffs2_inode_info *f;
struct jffs2_sb_info *c;
struct jffs2_raw_inode latest_node;
int ret;
D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
f = JFFS2_INODE_INFO(inode);
c = JFFS2_SB_INFO(inode->i_sb);
jffs2_init_inode_info(f);
down(&f->sem);
ret = jffs2_do_read_inode(c, f, inode->i_ino, &latest_node);
if (ret) {
make_bad_inode(inode);
up(&f->sem);
return;
}
inode->i_mode = jemode_to_cpu(latest_node.mode);
inode->i_uid = je16_to_cpu(latest_node.uid);
inode->i_gid = je16_to_cpu(latest_node.gid);
inode->i_size = je32_to_cpu(latest_node.isize);
inode->i_atime = ITIME(je32_to_cpu(latest_node.atime));
inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime));
inode->i_ctime = ITIME(je32_to_cpu(latest_node.ctime));
inode->i_nlink = f->inocache->nlink;
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = (inode->i_size + 511) >> 9;
switch (inode->i_mode & S_IFMT) {
jint16_t rdev;
case S_IFLNK:
inode->i_op = &jffs2_symlink_inode_operations;
break;
case S_IFDIR:
{
struct jffs2_full_dirent *fd;
for (fd=f->dents; fd; fd = fd->next) {
if (fd->type == DT_DIR && fd->ino)
inode->i_nlink++;
}
/* and '..' */
inode->i_nlink++;
/* Root dir gets i_nlink 3 for some reason */
if (inode->i_ino == 1)
inode->i_nlink++;
inode->i_op = &jffs2_dir_inode_operations;
inode->i_fop = &jffs2_dir_operations;
break;
}
case S_IFREG:
inode->i_op = &jffs2_file_inode_operations;
inode->i_fop = &jffs2_file_operations;
inode->i_mapping->a_ops = &jffs2_file_address_operations;
inode->i_mapping->nrpages = 0;
break;
case S_IFBLK:
case S_IFCHR:
/* Read the device numbers from the media */
D1(printk(KERN_DEBUG "Reading device numbers from flash\n"));
if (jffs2_read_dnode(c, f, f->metadata, (char *)&rdev, 0, sizeof(rdev)) < 0) {
/* Eep */
printk(KERN_NOTICE "Read device numbers for inode %lu failed\n", (unsigned long)inode->i_ino);
up(&f->sem);
jffs2_do_clear_inode(c, f);
make_bad_inode(inode);
return;
}
case S_IFSOCK:
case S_IFIFO:
inode->i_op = &jffs2_file_inode_operations;
init_special_inode(inode, inode->i_mode,
old_decode_dev((je16_to_cpu(rdev))));
break;
default:
printk(KERN_WARNING "jffs2_read_inode(): Bogus imode %o for ino %lu\n", inode->i_mode, (unsigned long)inode->i_ino);
}
up(&f->sem);
D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
}
