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-rw-r--r--fs/hfs/Kconfig4
-rw-r--r--fs/hfs/bfind.c10
-rw-r--r--fs/hfs/bitmap.c4
-rw-r--r--fs/hfs/bnode.c45
-rw-r--r--fs/hfs/brec.c19
-rw-r--r--fs/hfs/btree.c45
-rw-r--r--fs/hfs/btree.h5
-rw-r--r--fs/hfs/catalog.c24
-rw-r--r--fs/hfs/dir.c135
-rw-r--r--fs/hfs/extent.c70
-rw-r--r--fs/hfs/hfs_fs.h48
-rw-r--r--fs/hfs/inode.c103
-rw-r--r--fs/hfs/mdb.c40
-rw-r--r--fs/hfs/string.c15
-rw-r--r--fs/hfs/super.c161
-rw-r--r--fs/hfs/sysdep.c9
-rw-r--r--fs/hfs/trans.c2
17 files changed, 420 insertions, 319 deletions
diff --git a/fs/hfs/Kconfig b/fs/hfs/Kconfig
index b77c5bc20f8..998e3a6decf 100644
--- a/fs/hfs/Kconfig
+++ b/fs/hfs/Kconfig
@@ -1,6 +1,6 @@
config HFS_FS
- tristate "Apple Macintosh file system support (EXPERIMENTAL)"
- depends on BLOCK && EXPERIMENTAL
+ tristate "Apple Macintosh file system support"
+ depends on BLOCK
select NLS
help
If you say Y here, you will be able to mount Macintosh-formatted
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index 571abe97b42..de69d8a24f6 100644
--- a/fs/hfs/bfind.c
+++ b/fs/hfs/bfind.c
@@ -22,7 +22,8 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
return -ENOMEM;
fd->search_key = ptr;
fd->key = ptr + tree->max_key_len + 2;
- dprint(DBG_BNODE_REFS, "find_init: %d (%p)\n", tree->cnid, __builtin_return_address(0));
+ hfs_dbg(BNODE_REFS, "find_init: %d (%p)\n",
+ tree->cnid, __builtin_return_address(0));
mutex_lock(&tree->tree_lock);
return 0;
}
@@ -31,7 +32,8 @@ void hfs_find_exit(struct hfs_find_data *fd)
{
hfs_bnode_put(fd->bnode);
kfree(fd->search_key);
- dprint(DBG_BNODE_REFS, "find_exit: %d (%p)\n", fd->tree->cnid, __builtin_return_address(0));
+ hfs_dbg(BNODE_REFS, "find_exit: %d (%p)\n",
+ fd->tree->cnid, __builtin_return_address(0));
mutex_unlock(&fd->tree->tree_lock);
fd->tree = NULL;
}
@@ -135,8 +137,8 @@ int hfs_brec_find(struct hfs_find_data *fd)
return res;
invalid:
- printk(KERN_ERR "hfs: inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
- height, bnode->height, bnode->type, nidx, parent);
+ pr_err("inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
+ height, bnode->height, bnode->type, nidx, parent);
res = -EIO;
release:
hfs_bnode_put(bnode);
diff --git a/fs/hfs/bitmap.c b/fs/hfs/bitmap.c
index c6e97366e8a..28307bc9ec1 100644
--- a/fs/hfs/bitmap.c
+++ b/fs/hfs/bitmap.c
@@ -158,7 +158,7 @@ u32 hfs_vbm_search_free(struct super_block *sb, u32 goal, u32 *num_bits)
}
}
- dprint(DBG_BITMAP, "alloc_bits: %u,%u\n", pos, *num_bits);
+ hfs_dbg(BITMAP, "alloc_bits: %u,%u\n", pos, *num_bits);
HFS_SB(sb)->free_ablocks -= *num_bits;
hfs_bitmap_dirty(sb);
out:
@@ -200,7 +200,7 @@ int hfs_clear_vbm_bits(struct super_block *sb, u16 start, u16 count)
if (!count)
return 0;
- dprint(DBG_BITMAP, "clear_bits: %u,%u\n", start, count);
+ hfs_dbg(BITMAP, "clear_bits: %u,%u\n", start, count);
/* are all of the bits in range? */
if ((start + count) > HFS_SB(sb)->fs_ablocks)
return -2;
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index cdb41a1f6a6..d3fa6bd9503 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -100,7 +100,7 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
struct hfs_btree *tree;
struct page *src_page, *dst_page;
- dprint(DBG_BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
tree = src_node->tree;
@@ -120,7 +120,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
struct page *page;
void *ptr;
- dprint(DBG_BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
src += node->page_offset;
@@ -138,16 +138,16 @@ void hfs_bnode_dump(struct hfs_bnode *node)
__be32 cnid;
int i, off, key_off;
- dprint(DBG_BNODE_MOD, "bnode: %d\n", node->this);
+ hfs_dbg(BNODE_MOD, "bnode: %d\n", node->this);
hfs_bnode_read(node, &desc, 0, sizeof(desc));
- dprint(DBG_BNODE_MOD, "%d, %d, %d, %d, %d\n",
+ hfs_dbg(BNODE_MOD, "%d, %d, %d, %d, %d\n",
be32_to_cpu(desc.next), be32_to_cpu(desc.prev),
desc.type, desc.height, be16_to_cpu(desc.num_recs));
off = node->tree->node_size - 2;
for (i = be16_to_cpu(desc.num_recs); i >= 0; off -= 2, i--) {
key_off = hfs_bnode_read_u16(node, off);
- dprint(DBG_BNODE_MOD, " %d", key_off);
+ hfs_dbg_cont(BNODE_MOD, " %d", key_off);
if (i && node->type == HFS_NODE_INDEX) {
int tmp;
@@ -155,17 +155,18 @@ void hfs_bnode_dump(struct hfs_bnode *node)
tmp = (hfs_bnode_read_u8(node, key_off) | 1) + 1;
else
tmp = node->tree->max_key_len + 1;
- dprint(DBG_BNODE_MOD, " (%d,%d", tmp, hfs_bnode_read_u8(node, key_off));
+ hfs_dbg_cont(BNODE_MOD, " (%d,%d",
+ tmp, hfs_bnode_read_u8(node, key_off));
hfs_bnode_read(node, &cnid, key_off + tmp, 4);
- dprint(DBG_BNODE_MOD, ",%d)", be32_to_cpu(cnid));
+ hfs_dbg_cont(BNODE_MOD, ",%d)", be32_to_cpu(cnid));
} else if (i && node->type == HFS_NODE_LEAF) {
int tmp;
tmp = hfs_bnode_read_u8(node, key_off);
- dprint(DBG_BNODE_MOD, " (%d)", tmp);
+ hfs_dbg_cont(BNODE_MOD, " (%d)", tmp);
}
}
- dprint(DBG_BNODE_MOD, "\n");
+ hfs_dbg_cont(BNODE_MOD, "\n");
}
void hfs_bnode_unlink(struct hfs_bnode *node)
@@ -220,7 +221,7 @@ struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid)
struct hfs_bnode *node;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node %d in B*Tree\n", cnid);
+ pr_err("request for non-existent node %d in B*Tree\n", cnid);
return NULL;
}
@@ -243,7 +244,7 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
loff_t off;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node %d in B*Tree\n", cnid);
+ pr_err("request for non-existent node %d in B*Tree\n", cnid);
return NULL;
}
@@ -257,8 +258,8 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
node->this = cnid;
set_bit(HFS_BNODE_NEW, &node->flags);
atomic_set(&node->refcnt, 1);
- dprint(DBG_BNODE_REFS, "new_node(%d:%d): 1\n",
- node->tree->cnid, node->this);
+ hfs_dbg(BNODE_REFS, "new_node(%d:%d): 1\n",
+ node->tree->cnid, node->this);
init_waitqueue_head(&node->lock_wq);
spin_lock(&tree->hash_lock);
node2 = hfs_bnode_findhash(tree, cnid);
@@ -301,7 +302,7 @@ void hfs_bnode_unhash(struct hfs_bnode *node)
{
struct hfs_bnode **p;
- dprint(DBG_BNODE_REFS, "remove_node(%d:%d): %d\n",
+ hfs_dbg(BNODE_REFS, "remove_node(%d:%d): %d\n",
node->tree->cnid, node->this, atomic_read(&node->refcnt));
for (p = &node->tree->node_hash[hfs_bnode_hash(node->this)];
*p && *p != node; p = &(*p)->next_hash)
@@ -414,7 +415,11 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
spin_lock(&tree->hash_lock);
node = hfs_bnode_findhash(tree, num);
spin_unlock(&tree->hash_lock);
- BUG_ON(node);
+ if (node) {
+ pr_crit("new node %u already hashed?\n", num);
+ WARN_ON(1);
+ return node;
+ }
node = __hfs_bnode_create(tree, num);
if (!node)
return ERR_PTR(-ENOMEM);
@@ -443,8 +448,9 @@ void hfs_bnode_get(struct hfs_bnode *node)
{
if (node) {
atomic_inc(&node->refcnt);
- dprint(DBG_BNODE_REFS, "get_node(%d:%d): %d\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ hfs_dbg(BNODE_REFS, "get_node(%d:%d): %d\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
}
}
@@ -455,8 +461,9 @@ void hfs_bnode_put(struct hfs_bnode *node)
struct hfs_btree *tree = node->tree;
int i;
- dprint(DBG_BNODE_REFS, "put_node(%d:%d): %d\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ hfs_dbg(BNODE_REFS, "put_node(%d:%d): %d\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
BUG_ON(!atomic_read(&node->refcnt));
if (!atomic_dec_and_lock(&node->refcnt, &tree->hash_lock))
return;
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 92fb358ce82..9f4ee7f5202 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -47,15 +47,13 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
if (node->tree->attributes & HFS_TREE_BIGKEYS) {
retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
- printk(KERN_ERR "hfs: keylen %d too large\n",
- retval);
+ pr_err("keylen %d too large\n", retval);
retval = 0;
}
} else {
retval = (hfs_bnode_read_u8(node, recoff) | 1) + 1;
if (retval > node->tree->max_key_len + 1) {
- printk(KERN_ERR "hfs: keylen %d too large\n",
- retval);
+ pr_err("keylen %d too large\n", retval);
retval = 0;
}
}
@@ -94,7 +92,8 @@ again:
end_rec_off = tree->node_size - (node->num_recs + 1) * 2;
end_off = hfs_bnode_read_u16(node, end_rec_off);
end_rec_off -= 2;
- dprint(DBG_BNODE_MOD, "insert_rec: %d, %d, %d, %d\n", rec, size, end_off, end_rec_off);
+ hfs_dbg(BNODE_MOD, "insert_rec: %d, %d, %d, %d\n",
+ rec, size, end_off, end_rec_off);
if (size > end_rec_off - end_off) {
if (new_node)
panic("not enough room!\n");
@@ -190,7 +189,8 @@ again:
mark_inode_dirty(tree->inode);
}
hfs_bnode_dump(node);
- dprint(DBG_BNODE_MOD, "remove_rec: %d, %d\n", fd->record, fd->keylength + fd->entrylength);
+ hfs_dbg(BNODE_MOD, "remove_rec: %d, %d\n",
+ fd->record, fd->keylength + fd->entrylength);
if (!--node->num_recs) {
hfs_bnode_unlink(node);
if (!node->parent)
@@ -240,7 +240,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd)
if (IS_ERR(new_node))
return new_node;
hfs_bnode_get(node);
- dprint(DBG_BNODE_MOD, "split_nodes: %d - %d - %d\n",
+ hfs_dbg(BNODE_MOD, "split_nodes: %d - %d - %d\n",
node->this, new_node->this, node->next);
new_node->next = node->next;
new_node->prev = node->this;
@@ -374,7 +374,8 @@ again:
newkeylen = (hfs_bnode_read_u8(node, 14) | 1) + 1;
else
fd->keylength = newkeylen = tree->max_key_len + 1;
- dprint(DBG_BNODE_MOD, "update_rec: %d, %d, %d\n", rec, fd->keylength, newkeylen);
+ hfs_dbg(BNODE_MOD, "update_rec: %d, %d, %d\n",
+ rec, fd->keylength, newkeylen);
rec_off = tree->node_size - (rec + 2) * 2;
end_rec_off = tree->node_size - (parent->num_recs + 1) * 2;
@@ -385,7 +386,7 @@ again:
end_off = hfs_bnode_read_u16(parent, end_rec_off);
if (end_rec_off - end_off < diff) {
- printk(KERN_DEBUG "hfs: splitting index node...\n");
+ printk(KERN_DEBUG "splitting index node...\n");
fd->bnode = parent;
new_node = hfs_bnode_split(fd);
if (IS_ERR(new_node))
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 3ebc437736f..1ab19e660e6 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -46,11 +46,25 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
case HFS_EXT_CNID:
hfs_inode_read_fork(tree->inode, mdb->drXTExtRec, mdb->drXTFlSize,
mdb->drXTFlSize, be32_to_cpu(mdb->drXTClpSiz));
+ if (HFS_I(tree->inode)->alloc_blocks >
+ HFS_I(tree->inode)->first_blocks) {
+ pr_err("invalid btree extent records\n");
+ unlock_new_inode(tree->inode);
+ goto free_inode;
+ }
+
tree->inode->i_mapping->a_ops = &hfs_btree_aops;
break;
case HFS_CAT_CNID:
hfs_inode_read_fork(tree->inode, mdb->drCTExtRec, mdb->drCTFlSize,
mdb->drCTFlSize, be32_to_cpu(mdb->drCTClpSiz));
+
+ if (!HFS_I(tree->inode)->first_blocks) {
+ pr_err("invalid btree extent records (0 size)\n");
+ unlock_new_inode(tree->inode);
+ goto free_inode;
+ }
+
tree->inode->i_mapping->a_ops = &hfs_btree_aops;
break;
default:
@@ -59,11 +73,6 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
}
unlock_new_inode(tree->inode);
- if (!HFS_I(tree->inode)->first_blocks) {
- printk(KERN_ERR "hfs: invalid btree extent records (0 size).\n");
- goto free_inode;
- }
-
mapping = tree->inode->i_mapping;
page = read_mapping_page(mapping, 0, NULL);
if (IS_ERR(page))
@@ -90,15 +99,15 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
switch (id) {
case HFS_EXT_CNID:
if (tree->max_key_len != HFS_MAX_EXT_KEYLEN) {
- printk(KERN_ERR "hfs: invalid extent max_key_len %d\n",
- tree->max_key_len);
+ pr_err("invalid extent max_key_len %d\n",
+ tree->max_key_len);
goto fail_page;
}
break;
case HFS_CAT_CNID:
if (tree->max_key_len != HFS_MAX_CAT_KEYLEN) {
- printk(KERN_ERR "hfs: invalid catalog max_key_len %d\n",
- tree->max_key_len);
+ pr_err("invalid catalog max_key_len %d\n",
+ tree->max_key_len);
goto fail_page;
}
break;
@@ -136,8 +145,9 @@ void hfs_btree_close(struct hfs_btree *tree)
while ((node = tree->node_hash[i])) {
tree->node_hash[i] = node->next_hash;
if (atomic_read(&node->refcnt))
- printk(KERN_ERR "hfs: node %d:%d still has %d user(s)!\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ pr_err("node %d:%d still has %d user(s)!\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
hfs_bnode_free(node);
tree->node_hash_cnt--;
}
@@ -280,7 +290,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
kunmap(*pagep);
nidx = node->next;
if (!nidx) {
- printk(KERN_DEBUG "hfs: create new bmap node...\n");
+ printk(KERN_DEBUG "create new bmap node...\n");
next_node = hfs_bmap_new_bmap(node, idx);
} else
next_node = hfs_bnode_find(tree, nidx);
@@ -306,7 +316,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
u32 nidx;
u8 *data, byte, m;
- dprint(DBG_BNODE_MOD, "btree_free_node: %u\n", node->this);
+ hfs_dbg(BNODE_MOD, "btree_free_node: %u\n", node->this);
tree = node->tree;
nidx = node->this;
node = hfs_bnode_find(tree, 0);
@@ -321,7 +331,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
hfs_bnode_put(node);
if (!i) {
/* panic */;
- printk(KERN_CRIT "hfs: unable to free bnode %u. bmap not found!\n", node->this);
+ pr_crit("unable to free bnode %u. bmap not found!\n",
+ node->this);
return;
}
node = hfs_bnode_find(tree, i);
@@ -329,7 +340,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
return;
if (node->type != HFS_NODE_MAP) {
/* panic */;
- printk(KERN_CRIT "hfs: invalid bmap found! (%u,%d)\n", node->this, node->type);
+ pr_crit("invalid bmap found! (%u,%d)\n",
+ node->this, node->type);
hfs_bnode_put(node);
return;
}
@@ -342,7 +354,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
m = 1 << (~nidx & 7);
byte = data[off];
if (!(byte & m)) {
- printk(KERN_CRIT "hfs: trying to free free bnode %u(%d)\n", node->this, node->type);
+ pr_crit("trying to free free bnode %u(%d)\n",
+ node->this, node->type);
kunmap(page);
hfs_bnode_put(node);
return;
diff --git a/fs/hfs/btree.h b/fs/hfs/btree.h
index 2a1d712f85d..f6bd266d70b 100644
--- a/fs/hfs/btree.h
+++ b/fs/hfs/btree.h
@@ -153,11 +153,6 @@ struct hfs_btree_header_rec {
u32 reserved3[16];
} __packed;
-#define HFS_NODE_INDEX 0x00 /* An internal (index) node */
-#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */
-#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */
-#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */
-
#define BTREE_ATTR_BADCLOSE 0x00000001 /* b-tree not closed properly. not
used by hfsplus. */
#define HFS_TREE_BIGKEYS 0x00000002 /* key length is u16 instead of u8.
diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c
index 424b0337f52..ff0316b925a 100644
--- a/fs/hfs/catalog.c
+++ b/fs/hfs/catalog.c
@@ -87,12 +87,15 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
int entry_size;
int err;
- dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);
+ hfs_dbg(CAT_MOD, "create_cat: %s,%u(%d)\n",
+ str->name, cnid, inode->i_nlink);
if (dir->i_size >= HFS_MAX_VALENCE)
return -ENOSPC;
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
entry_size = hfs_cat_build_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
@@ -184,14 +187,14 @@ int hfs_cat_find_brec(struct super_block *sb, u32 cnid,
type = rec.type;
if (type != HFS_CDR_THD && type != HFS_CDR_FTH) {
- printk(KERN_ERR "hfs: found bad thread record in catalog\n");
+ pr_err("found bad thread record in catalog\n");
return -EIO;
}
fd->search_key->cat.ParID = rec.thread.ParID;
len = fd->search_key->cat.CName.len = rec.thread.CName.len;
if (len > HFS_NAMELEN) {
- printk(KERN_ERR "hfs: bad catalog namelength\n");
+ pr_err("bad catalog namelength\n");
return -EIO;
}
memcpy(fd->search_key->cat.CName.name, rec.thread.CName.name, len);
@@ -212,9 +215,11 @@ int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
struct list_head *pos;
int res, type;
- dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
+ hfs_dbg(CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ return res;
hfs_cat_build_key(sb, fd.search_key, dir->i_ino, str);
res = hfs_brec_find(&fd);
@@ -278,10 +283,13 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
int entry_size, type;
int err;
- dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
+ hfs_dbg(CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n",
+ cnid, src_dir->i_ino, src_name->name,
dst_dir->i_ino, dst_name->name);
sb = src_dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ if (err)
+ return err;
dst_fd = src_fd;
/* find the old dir entry and read the data */
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 2b3b8611b41..145566851e7 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -18,16 +18,16 @@
* hfs_lookup()
*/
static struct dentry *hfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
hfs_cat_rec rec;
struct hfs_find_data fd;
struct inode *inode = NULL;
int res;
- dentry->d_op = &hfs_dentry_operations;
-
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res)
+ return ERR_PTR(res);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (res) {
@@ -51,9 +51,9 @@ done:
/*
* hfs_readdir
*/
-static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int hfs_readdir(struct file *file, struct dir_context *ctx)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
int len, err;
char strbuf[HFS_MAX_NAMELEN];
@@ -62,23 +62,24 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
struct hfs_readdir_data *rd;
u16 type;
- if (filp->f_pos >= inode->i_size)
+ if (ctx->pos >= inode->i_size)
return 0;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd);
if (err)
goto out;
- switch ((u32)filp->f_pos) {
- case 0:
+ if (ctx->pos == 0) {
/* This is completely artificial... */
- if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR))
+ if (!dir_emit_dot(file, ctx))
goto out;
- filp->f_pos++;
- /* fall through */
- case 1:
+ ctx->pos = 1;
+ }
+ if (ctx->pos == 1) {
if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) {
err = -EIO;
goto out;
@@ -86,31 +87,29 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, fd.entrylength);
if (entry.type != HFS_CDR_THD) {
- printk(KERN_ERR "hfs: bad catalog folder thread\n");
+ pr_err("bad catalog folder thread\n");
err = -EIO;
goto out;
}
//if (fd.entrylength < HFS_MIN_THREAD_SZ) {
- // printk(KERN_ERR "hfs: truncated catalog thread\n");
+ // pr_err("truncated catalog thread\n");
// err = -EIO;
// goto out;
//}
- if (filldir(dirent, "..", 2, 1,
+ if (!dir_emit(ctx, "..", 2,
be32_to_cpu(entry.thread.ParID), DT_DIR))
goto out;
- filp->f_pos++;
- /* fall through */
- default:
- if (filp->f_pos >= inode->i_size)
- goto out;
- err = hfs_brec_goto(&fd, filp->f_pos - 1);
- if (err)
- goto out;
+ ctx->pos = 2;
}
+ if (ctx->pos >= inode->i_size)
+ goto out;
+ err = hfs_brec_goto(&fd, ctx->pos - 1);
+ if (err)
+ goto out;
for (;;) {
if (be32_to_cpu(fd.key->cat.ParID) != inode->i_ino) {
- printk(KERN_ERR "hfs: walked past end of dir\n");
+ pr_err("walked past end of dir\n");
err = -EIO;
goto out;
}
@@ -125,43 +124,43 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
len = hfs_mac2asc(sb, strbuf, &fd.key->cat.CName);
if (type == HFS_CDR_DIR) {
if (fd.entrylength < sizeof(struct hfs_cat_dir)) {
- printk(KERN_ERR "hfs: small dir entry\n");
+ pr_err("small dir entry\n");
err = -EIO;
goto out;
}
- if (filldir(dirent, strbuf, len, filp->f_pos,
+ if (!dir_emit(ctx, strbuf, len,
be32_to_cpu(entry.dir.DirID), DT_DIR))
break;
} else if (type == HFS_CDR_FIL) {
if (fd.entrylength < sizeof(struct hfs_cat_file)) {
- printk(KERN_ERR "hfs: small file entry\n");
+ pr_err("small file entry\n");
err = -EIO;
goto out;
}
- if (filldir(dirent, strbuf, len, filp->f_pos,
+ if (!dir_emit(ctx, strbuf, len,
be32_to_cpu(entry.file.FlNum), DT_REG))
break;
} else {
- printk(KERN_ERR "hfs: bad catalog entry type %d\n", type);
+ pr_err("bad catalog entry type %d\n", type);
err = -EIO;
goto out;
}
- filp->f_pos++;
- if (filp->f_pos >= inode->i_size)
+ ctx->pos++;
+ if (ctx->pos >= inode->i_size)
goto out;
err = hfs_brec_goto(&fd, 1);
if (err)
goto out;
}
- rd = filp->private_data;
+ rd = file->private_data;
if (!rd) {
rd = kmalloc(sizeof(struct hfs_readdir_data), GFP_KERNEL);
if (!rd) {
err = -ENOMEM;
goto out;
}
- filp->private_data = rd;
- rd->file = filp;
+ file->private_data = rd;
+ rd->file = file;
list_add(&rd->list, &HFS_I(inode)->open_dir_list);
}
memcpy(&rd->key, &fd.key, sizeof(struct hfs_cat_key));
@@ -174,7 +173,9 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
{
struct hfs_readdir_data *rd = file->private_data;
if (rd) {
+ mutex_lock(&inode->i_mutex);
list_del(&rd->list);
+ mutex_unlock(&inode->i_mutex);
kfree(rd);
}
return 0;
@@ -188,8 +189,8 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
* a directory and return a corresponding inode, given the inode for
* the directory and the name (and its length) of the new file.
*/
-static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *nd)
+static int hfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+ bool excl)
{
struct inode *inode;
int res;
@@ -200,7 +201,7 @@ static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
if (res) {
- inode->i_nlink = 0;
+ clear_nlink(inode);
hfs_delete_inode(inode);
iput(inode);
return res;
@@ -218,7 +219,7 @@ static int hfs_create(struct inode *dir, struct dentry *dentry, int mode,
* in a directory, given the inode for the parent directory and the
* name (and its length) of the new directory.
*/
-static int hfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int hfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
struct inode *inode;
int res;
@@ -229,7 +230,7 @@ static int hfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
if (res) {
- inode->i_nlink = 0;
+ clear_nlink(inode);
hfs_delete_inode(inode);
iput(inode);
return res;
@@ -240,46 +241,22 @@ static int hfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
}
/*
- * hfs_unlink()
+ * hfs_remove()
*
- * This is the unlink() entry in the inode_operations structure for
- * regular HFS directories. The purpose is to delete an existing
- * file, given the inode for the parent directory and the name
- * (and its length) of the existing file.
- */
-static int hfs_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode;
- int res;
-
- inode = dentry->d_inode;
- res = hfs_cat_delete(inode->i_ino, dir, &dentry->d_name);
- if (res)
- return res;
-
- drop_nlink(inode);
- hfs_delete_inode(inode);
- inode->i_ctime = CURRENT_TIME_SEC;
- mark_inode_dirty(inode);
-
- return res;
-}
-
-/*
- * hfs_rmdir()
+ * This serves as both unlink() and rmdir() in the inode_operations
+ * structure for regular HFS directories. The purpose is to delete
+ * an existing child, given the inode for the parent directory and
+ * the name (and its length) of the existing directory.
*
- * This is the rmdir() entry in the inode_operations structure for
- * regular HFS directories. The purpose is to delete an existing
- * directory, given the inode for the parent directory and the name
- * (and its length) of the existing directory.
+ * HFS does not have hardlinks, so both rmdir and unlink set the
+ * link count to 0. The only difference is the emptiness check.
*/
-static int hfs_rmdir(struct inode *dir, struct dentry *dentry)
+static int hfs_remove(struct inode *dir, struct dentry *dentry)
{
- struct inode *inode;
+ struct inode *inode = dentry->d_inode;
int res;
- inode = dentry->d_inode;
- if (inode->i_size != 2)
+ if (S_ISDIR(inode->i_mode) && inode->i_size != 2)
return -ENOTEMPTY;
res = hfs_cat_delete(inode->i_ino, dir, &dentry->d_name);
if (res)
@@ -309,7 +286,7 @@ static int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
/* Unlink destination if it already exists */
if (new_dentry->d_inode) {
- res = hfs_unlink(new_dir, new_dentry);
+ res = hfs_remove(new_dir, new_dentry);
if (res)
return res;
}
@@ -326,7 +303,7 @@ static int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
const struct file_operations hfs_dir_operations = {
.read = generic_read_dir,
- .readdir = hfs_readdir,
+ .iterate = hfs_readdir,
.llseek = generic_file_llseek,
.release = hfs_dir_release,
};
@@ -334,9 +311,9 @@ const struct file_operations hfs_dir_operations = {
const struct inode_operations hfs_dir_inode_operations = {
.create = hfs_create,
.lookup = hfs_lookup,
- .unlink = hfs_unlink,
+ .unlink = hfs_remove,
.mkdir = hfs_mkdir,
- .rmdir = hfs_rmdir,
+ .rmdir = hfs_remove,
.rename = hfs_rename,
.setattr = hfs_inode_setattr,
};
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
index 2c16316d291..e33a0d36a93 100644
--- a/fs/hfs/extent.c
+++ b/fs/hfs/extent.c
@@ -107,7 +107,7 @@ static u16 hfs_ext_lastblock(struct hfs_extent *ext)
return be16_to_cpu(ext->block) + be16_to_cpu(ext->count);
}
-static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
+static int __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
{
int res;
@@ -116,26 +116,31 @@ static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd
res = hfs_brec_find(fd);
if (HFS_I(inode)->flags & HFS_FLG_EXT_NEW) {
if (res != -ENOENT)
- return;
+ return res;
hfs_brec_insert(fd, HFS_I(inode)->cached_extents, sizeof(hfs_extent_rec));
HFS_I(inode)->flags &= ~(HFS_FLG_EXT_DIRTY|HFS_FLG_EXT_NEW);
} else {
if (res)
- return;
+ return res;
hfs_bnode_write(fd->bnode, HFS_I(inode)->cached_extents, fd->entryoffset, fd->entrylength);
HFS_I(inode)->flags &= ~HFS_FLG_EXT_DIRTY;
}
+ return 0;
}
-void hfs_ext_write_extent(struct inode *inode)
+int hfs_ext_write_extent(struct inode *inode)
{
struct hfs_find_data fd;
+ int res = 0;
if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- __hfs_ext_write_extent(inode, &fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (res)
+ return res;
+ res = __hfs_ext_write_extent(inode, &fd);
hfs_find_exit(&fd);
}
+ return res;
}
static inline int __hfs_ext_read_extent(struct hfs_find_data *fd, struct hfs_extent *extent,
@@ -161,8 +166,11 @@ static inline int __hfs_ext_cache_extent(struct hfs_find_data *fd, struct inode
{
int res;
- if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY)
- __hfs_ext_write_extent(inode, fd);
+ if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
+ res = __hfs_ext_write_extent(inode, fd);
+ if (res)
+ return res;
+ }
res = __hfs_ext_read_extent(fd, HFS_I(inode)->cached_extents, inode->i_ino,
block, HFS_IS_RSRC(inode) ? HFS_FK_RSRC : HFS_FK_DATA);
@@ -185,9 +193,11 @@ static int hfs_ext_read_extent(struct inode *inode, u16 block)
block < HFS_I(inode)->cached_start + HFS_I(inode)->cached_blocks)
return 0;
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- res = __hfs_ext_cache_extent(&fd, inode, block);
- hfs_find_exit(&fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (!res) {
+ res = __hfs_ext_cache_extent(&fd, inode, block);
+ hfs_find_exit(&fd);
+ }
return res;
}
@@ -195,11 +205,12 @@ static void hfs_dump_extent(struct hfs_extent *extent)
{
int i;
- dprint(DBG_EXTENT, " ");
+ hfs_dbg(EXTENT, " ");
for (i = 0; i < 3; i++)
- dprint(DBG_EXTENT, " %u:%u", be16_to_cpu(extent[i].block),
- be16_to_cpu(extent[i].count));
- dprint(DBG_EXTENT, "\n");
+ hfs_dbg_cont(EXTENT, " %u:%u",
+ be16_to_cpu(extent[i].block),
+ be16_to_cpu(extent[i].count));
+ hfs_dbg_cont(EXTENT, "\n");
}
static int hfs_add_extent(struct hfs_extent *extent, u16 offset,
@@ -298,7 +309,9 @@ int hfs_free_fork(struct super_block *sb, struct hfs_cat_file *file, int type)
if (total_blocks == blocks)
return 0;
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res)
+ return res;
do {
res = __hfs_ext_read_extent(&fd, extent, cnid, total_blocks, type);
if (res)
@@ -392,10 +405,10 @@ int hfs_extend_file(struct inode *inode)
goto out;
}
- dprint(DBG_EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
+ hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
if (HFS_I(inode)->alloc_blocks == HFS_I(inode)->first_blocks) {
if (!HFS_I(inode)->first_blocks) {
- dprint(DBG_EXTENT, "first extents\n");
+ hfs_dbg(EXTENT, "first extents\n");
/* no extents yet */
HFS_I(inode)->first_extents[0].block = cpu_to_be16(start);
HFS_I(inode)->first_extents[0].count = cpu_to_be16(len);
@@ -432,13 +445,15 @@ out:
if (inode->i_ino < HFS_FIRSTUSER_CNID)
set_bit(HFS_FLG_ALT_MDB_DIRTY, &HFS_SB(sb)->flags);
set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
- sb->s_dirt = 1;
+ hfs_mark_mdb_dirty(sb);
}
return res;
insert_extent:
- dprint(DBG_EXTENT, "insert new extent\n");
- hfs_ext_write_extent(inode);
+ hfs_dbg(EXTENT, "insert new extent\n");
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ goto out;
memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
HFS_I(inode)->cached_extents[0].block = cpu_to_be16(start);
@@ -460,13 +475,13 @@ void hfs_file_truncate(struct inode *inode)
u32 size;
int res;
- dprint(DBG_INODE, "truncate: %lu, %Lu -> %Lu\n", inode->i_ino,
- (long long)HFS_I(inode)->phys_size, inode->i_size);
+ hfs_dbg(INODE, "truncate: %lu, %Lu -> %Lu\n",
+ inode->i_ino, (long long)HFS_I(inode)->phys_size,
+ inode->i_size);
if (inode->i_size > HFS_I(inode)->phys_size) {
struct address_space *mapping = inode->i_mapping;
void *fsdata;
struct page *page;
- int res;
/* XXX: Can use generic_cont_expand? */
size = inode->i_size - 1;
@@ -488,7 +503,12 @@ void hfs_file_truncate(struct inode *inode)
goto out;
mutex_lock(&HFS_I(inode)->extents_lock);
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res) {
+ mutex_unlock(&HFS_I(inode)->extents_lock);
+ /* XXX: We lack error handling of hfs_file_truncate() */
+ return;
+ }
while (1) {
if (alloc_cnt == HFS_I(inode)->first_blocks) {
hfs_free_extents(sb, HFS_I(inode)->first_extents,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index c8cffb81e84..0524cda47a6 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -9,11 +9,18 @@
#ifndef _LINUX_HFS_FS_H
#define _LINUX_HFS_FS_H
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/buffer_head.h>
#include <linux/fs.h>
+#include <linux/workqueue.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
@@ -33,8 +40,18 @@
//#define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
#define DBG_MASK (0)
-#define dprint(flg, fmt, args...) \
- if (flg & DBG_MASK) printk(fmt , ## args)
+#define hfs_dbg(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
+} while (0)
+
+#define hfs_dbg_cont(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ pr_cont(fmt, ##__VA_ARGS__); \
+} while (0)
+
/*
* struct hfs_inode_info
@@ -133,20 +150,19 @@ struct hfs_sb_info {
permissions on all files */
umode_t s_dir_umask; /* The umask applied to the
permissions on all dirs */
- uid_t s_uid; /* The uid of all files */
- gid_t s_gid; /* The gid of all files */
+ kuid_t s_uid; /* The uid of all files */
+ kgid_t s_gid; /* The gid of all files */
int session, part;
-
struct nls_table *nls_io, *nls_disk;
-
struct mutex bitmap_lock;
-
unsigned long flags;
-
u16 blockoffset;
-
int fs_div;
+ struct super_block *sb;
+ int work_queued; /* non-zero delayed work is queued */
+ struct delayed_work mdb_work; /* MDB flush delayed work */
+ spinlock_t work_lock; /* protects mdb_work and work_queued */
};
#define HFS_FLG_BITMAP_DIRTY 0
@@ -174,7 +190,7 @@ extern const struct inode_operations hfs_dir_inode_operations;
/* extent.c */
extern int hfs_ext_keycmp(const btree_key *, const btree_key *);
extern int hfs_free_fork(struct super_block *, struct hfs_cat_file *, int);
-extern void hfs_ext_write_extent(struct inode *);
+extern int hfs_ext_write_extent(struct inode *);
extern int hfs_extend_file(struct inode *);
extern void hfs_file_truncate(struct inode *);
@@ -184,7 +200,7 @@ extern int hfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern const struct address_space_operations hfs_aops;
extern const struct address_space_operations hfs_btree_aops;
-extern struct inode *hfs_new_inode(struct inode *, struct qstr *, int);
+extern struct inode *hfs_new_inode(struct inode *, struct qstr *, umode_t);
extern void hfs_inode_write_fork(struct inode *, struct hfs_extent *, __be32 *, __be32 *);
extern int hfs_write_inode(struct inode *, struct writeback_control *);
extern int hfs_inode_setattr(struct dentry *, struct iattr *);
@@ -213,15 +229,19 @@ extern int hfs_part_find(struct super_block *, sector_t *, sector_t *);
/* string.c */
extern const struct dentry_operations hfs_dentry_operations;
-extern int hfs_hash_dentry(struct dentry *, struct qstr *);
+extern int hfs_hash_dentry(const struct dentry *, struct qstr *);
extern int hfs_strcmp(const unsigned char *, unsigned int,
const unsigned char *, unsigned int);
-extern int hfs_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+extern int hfs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
+ unsigned int len, const char *str, const struct qstr *name);
/* trans.c */
extern void hfs_asc2mac(struct super_block *, struct hfs_name *, struct qstr *);
extern int hfs_mac2asc(struct super_block *, char *, const struct hfs_name *);
+/* super.c */
+extern void hfs_mark_mdb_dirty(struct super_block *sb);
+
extern struct timezone sys_tz;
/*
@@ -249,7 +269,7 @@ static inline const char *hfs_mdb_name(struct super_block *sb)
static inline void hfs_bitmap_dirty(struct super_block *sb)
{
set_bit(HFS_FLG_BITMAP_DIRTY, &HFS_SB(sb)->flags);
- sb->s_dirt = 1;
+ hfs_mark_mdb_dirty(sb);
}
#define sb_bread512(sb, sec, data) ({ \
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index dffb4e99664..d0929bc8178 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -14,6 +14,7 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/sched.h>
+#include <linux/aio.h>
#include "hfs_fs.h"
#include "btree.h"
@@ -35,6 +36,16 @@ static int hfs_readpage(struct file *file, struct page *page)
return block_read_full_page(page, hfs_get_block);
}
+static void hfs_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, inode->i_size);
+ hfs_file_truncate(inode);
+ }
+}
+
static int hfs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -45,11 +56,8 @@ static int hfs_write_begin(struct file *file, struct address_space *mapping,
ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
hfs_get_block,
&HFS_I(mapping->host)->phys_size);
- if (unlikely(ret)) {
- loff_t isize = mapping->host->i_size;
- if (pos + len > isize)
- vmtruncate(mapping->host, isize);
- }
+ if (unlikely(ret))
+ hfs_write_failed(mapping, pos + len);
return ret;
}
@@ -117,14 +125,15 @@ static int hfs_releasepage(struct page *page, gfp_t mask)
}
static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
- const struct iovec *iov, loff_t offset, unsigned long nr_segs)
+ struct iov_iter *iter, loff_t offset)
{
struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
+ struct address_space *mapping = file->f_mapping;
+ struct inode *inode = file_inode(file)->i_mapping->host;
+ size_t count = iov_iter_count(iter);
ssize_t ret;
- ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
- offset, nr_segs, hfs_get_block, NULL);
+ ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, hfs_get_block);
/*
* In case of error extending write may have instantiated a few
@@ -132,10 +141,10 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
*/
if (unlikely((rw & WRITE) && ret < 0)) {
loff_t isize = i_size_read(inode);
- loff_t end = offset + iov_length(iov, nr_segs);
+ loff_t end = offset + count;
if (end > isize)
- vmtruncate(inode, isize);
+ hfs_write_failed(mapping, end);
}
return ret;
@@ -150,7 +159,6 @@ static int hfs_writepages(struct address_space *mapping,
const struct address_space_operations hfs_btree_aops = {
.readpage = hfs_readpage,
.writepage = hfs_writepage,
- .sync_page = block_sync_page,
.write_begin = hfs_write_begin,
.write_end = generic_write_end,
.bmap = hfs_bmap,
@@ -160,7 +168,6 @@ const struct address_space_operations hfs_btree_aops = {
const struct address_space_operations hfs_aops = {
.readpage = hfs_readpage,
.writepage = hfs_writepage,
- .sync_page = block_sync_page,
.write_begin = hfs_write_begin,
.write_end = generic_write_end,
.bmap = hfs_bmap,
@@ -171,7 +178,7 @@ const struct address_space_operations hfs_aops = {
/*
* hfs_new_inode
*/
-struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
+struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, umode_t mode)
{
struct super_block *sb = dir->i_sb;
struct inode *inode = new_inode(sb);
@@ -185,7 +192,7 @@ struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
inode->i_mode = mode;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
- inode->i_nlink = 1;
+ set_nlink(inode, 1);
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
HFS_I(inode)->flags = 0;
HFS_I(inode)->rsrc_inode = NULL;
@@ -222,7 +229,7 @@ struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
insert_inode_hash(inode);
mark_inode_dirty(inode);
set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
- sb->s_dirt = 1;
+ hfs_mark_mdb_dirty(sb);
return inode;
}
@@ -231,13 +238,13 @@ void hfs_delete_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
- dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino);
+ hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
if (S_ISDIR(inode->i_mode)) {
HFS_SB(sb)->folder_count--;
if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
HFS_SB(sb)->root_dirs--;
set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
- sb->s_dirt = 1;
+ hfs_mark_mdb_dirty(sb);
return;
}
HFS_SB(sb)->file_count--;
@@ -250,7 +257,7 @@ void hfs_delete_inode(struct inode *inode)
}
}
set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
- sb->s_dirt = 1;
+ hfs_mark_mdb_dirty(sb);
}
void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
@@ -315,7 +322,7 @@ static int hfs_read_inode(struct inode *inode, void *data)
/* Initialize the inode */
inode->i_uid = hsb->s_uid;
inode->i_gid = hsb->s_gid;
- inode->i_nlink = 1;
+ set_nlink(inode, 1);
if (idata->key)
HFS_I(inode)->cat_key = *idata->key;
@@ -410,9 +417,12 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
struct inode *main_inode = inode;
struct hfs_find_data fd;
hfs_cat_rec rec;
+ int res;
- dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
- hfs_ext_write_extent(inode);
+ hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ return res;
if (inode->i_ino < HFS_FIRSTUSER_CNID) {
switch (inode->i_ino) {
@@ -491,7 +501,7 @@ out:
}
static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
struct inode *inode = NULL;
hfs_cat_rec rec;
@@ -509,7 +519,11 @@ static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
if (!inode)
return ERR_PTR(-ENOMEM);
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res) {
+ iput(inode);
+ return ERR_PTR(res);
+ }
fd.search_key->cat = HFS_I(dir)->cat_key;
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (!res) {
@@ -533,8 +547,8 @@ out:
void hfs_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
- end_writeback(inode);
+ truncate_inode_pages_final(&inode->i_data);
+ clear_inode(inode);
if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
iput(HFS_I(inode)->rsrc_inode);
@@ -596,9 +610,9 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
/* no uig/gid changes and limit which mode bits can be set */
if (((attr->ia_valid & ATTR_UID) &&
- (attr->ia_uid != hsb->s_uid)) ||
+ (!uid_eq(attr->ia_uid, hsb->s_uid))) ||
((attr->ia_valid & ATTR_GID) &&
- (attr->ia_gid != hsb->s_gid)) ||
+ (!gid_eq(attr->ia_gid, hsb->s_gid))) ||
((attr->ia_valid & ATTR_MODE) &&
((S_ISDIR(inode->i_mode) &&
(attr->ia_mode != inode->i_mode)) ||
@@ -617,9 +631,14 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- error = vmtruncate(inode, attr->ia_size);
+ inode_dio_wait(inode);
+
+ error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
+
+ truncate_setsize(inode, attr->ia_size);
+ hfs_file_truncate(inode);
}
setattr_copy(inode, attr);
@@ -627,37 +646,38 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
return 0;
}
-static int hfs_file_fsync(struct file *filp, int datasync)
+static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end,
+ int datasync)
{
struct inode *inode = filp->f_mapping->host;
struct super_block * sb;
int ret, err;
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret)
+ return ret;
+ mutex_lock(&inode->i_mutex);
+
/* sync the inode to buffers */
ret = write_inode_now(inode, 0);
/* sync the superblock to buffers */
sb = inode->i_sb;
- if (sb->s_dirt) {
- lock_super(sb);
- sb->s_dirt = 0;
- if (!(sb->s_flags & MS_RDONLY))
- hfs_mdb_commit(sb);
- unlock_super(sb);
- }
+ flush_delayed_work(&HFS_SB(sb)->mdb_work);
/* .. finally sync the buffers to disk */
err = sync_blockdev(sb->s_bdev);
if (!ret)
ret = err;
+ mutex_unlock(&inode->i_mutex);
return ret;
}
static const struct file_operations hfs_file_operations = {
.llseek = generic_file_llseek,
- .read = do_sync_read,
- .aio_read = generic_file_aio_read,
- .write = do_sync_write,
- .aio_write = generic_file_aio_write,
+ .read = new_sync_read,
+ .read_iter = generic_file_read_iter,
+ .write = new_sync_write,
+ .write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.splice_read = generic_file_splice_read,
.fsync = hfs_file_fsync,
@@ -667,7 +687,6 @@ static const struct file_operations hfs_file_operations = {
static const struct inode_operations hfs_file_inode_operations = {
.lookup = hfs_file_lookup,
- .truncate = hfs_file_truncate,
.setattr = hfs_inode_setattr,
.setxattr = hfs_setxattr,
.getxattr = hfs_getxattr,
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 1563d5ce576..aa3f0d6d043 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -48,7 +48,7 @@ static int hfs_get_last_session(struct super_block *sb,
*start = (sector_t)te.cdte_addr.lba << 2;
return 0;
}
- printk(KERN_ERR "hfs: invalid session number or type of track\n");
+ pr_err("invalid session number or type of track\n");
return -EINVAL;
}
ms_info.addr_format = CDROM_LBA;
@@ -101,7 +101,7 @@ int hfs_mdb_get(struct super_block *sb)
HFS_SB(sb)->alloc_blksz = size = be32_to_cpu(mdb->drAlBlkSiz);
if (!size || (size & (HFS_SECTOR_SIZE - 1))) {
- printk(KERN_ERR "hfs: bad allocation block size %d\n", size);
+ pr_err("bad allocation block size %d\n", size);
goto out_bh;
}
@@ -118,7 +118,7 @@ int hfs_mdb_get(struct super_block *sb)
size >>= 1;
brelse(bh);
if (!sb_set_blocksize(sb, size)) {
- printk(KERN_ERR "hfs: unable to set blocksize to %u\n", size);
+ pr_err("unable to set blocksize to %u\n", size);
goto out;
}
@@ -162,8 +162,8 @@ int hfs_mdb_get(struct super_block *sb)
}
if (!HFS_SB(sb)->alt_mdb) {
- printk(KERN_WARNING "hfs: unable to locate alternate MDB\n");
- printk(KERN_WARNING "hfs: continuing without an alternate MDB\n");
+ pr_warn("unable to locate alternate MDB\n");
+ pr_warn("continuing without an alternate MDB\n");
}
HFS_SB(sb)->bitmap = (__be32 *)__get_free_pages(GFP_KERNEL, PAGE_SIZE < 8192 ? 1 : 0);
@@ -178,7 +178,7 @@ int hfs_mdb_get(struct super_block *sb)
while (size) {
bh = sb_bread(sb, off >> sb->s_blocksize_bits);
if (!bh) {
- printk(KERN_ERR "hfs: unable to read volume bitmap\n");
+ pr_err("unable to read volume bitmap\n");
goto out;
}
off2 = off & (sb->s_blocksize - 1);
@@ -192,23 +192,22 @@ int hfs_mdb_get(struct super_block *sb)
HFS_SB(sb)->ext_tree = hfs_btree_open(sb, HFS_EXT_CNID, hfs_ext_keycmp);
if (!HFS_SB(sb)->ext_tree) {
- printk(KERN_ERR "hfs: unable to open extent tree\n");
+ pr_err("unable to open extent tree\n");
goto out;
}
HFS_SB(sb)->cat_tree = hfs_btree_open(sb, HFS_CAT_CNID, hfs_cat_keycmp);
if (!HFS_SB(sb)->cat_tree) {
- printk(KERN_ERR "hfs: unable to open catalog tree\n");
+ pr_err("unable to open catalog tree\n");
goto out;
}
attrib = mdb->drAtrb;
if (!(attrib & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
- printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
- "running fsck.hfs is recommended. mounting read-only.\n");
+ pr_warn("filesystem was not cleanly unmounted, running fsck.hfs is recommended. mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
if ((attrib & cpu_to_be16(HFS_SB_ATTRIB_SLOCK))) {
- printk(KERN_WARNING "hfs: filesystem is marked locked, mounting read-only.\n");
+ pr_warn("filesystem is marked locked, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
if (!(sb->s_flags & MS_RDONLY)) {
@@ -236,10 +235,10 @@ out:
* hfs_mdb_commit()
*
* Description:
- * This updates the MDB on disk (look also at hfs_write_super()).
+ * This updates the MDB on disk.
* It does not check, if the superblock has been modified, or
* if the filesystem has been mounted read-only. It is mainly
- * called by hfs_write_super() and hfs_btree_extend().
+ * called by hfs_sync_fs() and flush_mdb().
* Input Variable(s):
* struct hfs_mdb *mdb: Pointer to the hfs MDB
* int backup;
@@ -260,6 +259,10 @@ void hfs_mdb_commit(struct super_block *sb)
{
struct hfs_mdb *mdb = HFS_SB(sb)->mdb;
+ if (sb->s_flags & MS_RDONLY)
+ return;
+
+ lock_buffer(HFS_SB(sb)->mdb_bh);
if (test_and_clear_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags)) {
/* These parameters may have been modified, so write them back */
mdb->drLsMod = hfs_mtime();
@@ -283,9 +286,13 @@ void hfs_mdb_commit(struct super_block *sb)
&mdb->drXTFlSize, NULL);
hfs_inode_write_fork(HFS_SB(sb)->cat_tree->inode, mdb->drCTExtRec,
&mdb->drCTFlSize, NULL);
+
+ lock_buffer(HFS_SB(sb)->alt_mdb_bh);
memcpy(HFS_SB(sb)->alt_mdb, HFS_SB(sb)->mdb, HFS_SECTOR_SIZE);
HFS_SB(sb)->alt_mdb->drAtrb |= cpu_to_be16(HFS_SB_ATTRIB_UNMNT);
HFS_SB(sb)->alt_mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT);
+ unlock_buffer(HFS_SB(sb)->alt_mdb_bh);
+
mark_buffer_dirty(HFS_SB(sb)->alt_mdb_bh);
sync_dirty_buffer(HFS_SB(sb)->alt_mdb_bh);
}
@@ -304,11 +311,15 @@ void hfs_mdb_commit(struct super_block *sb)
while (size) {
bh = sb_bread(sb, block);
if (!bh) {
- printk(KERN_ERR "hfs: unable to read volume bitmap\n");
+ pr_err("unable to read volume bitmap\n");
break;
}
len = min((int)sb->s_blocksize - off, size);
+
+ lock_buffer(bh);
memcpy(bh->b_data + off, ptr, len);
+ unlock_buffer(bh);
+
mark_buffer_dirty(bh);
brelse(bh);
block++;
@@ -317,6 +328,7 @@ void hfs_mdb_commit(struct super_block *sb)
size -= len;
}
}
+ unlock_buffer(HFS_SB(sb)->mdb_bh);
}
void hfs_mdb_close(struct super_block *sb)
diff --git a/fs/hfs/string.c b/fs/hfs/string.c
index 927a5af7942..85b610c3909 100644
--- a/fs/hfs/string.c
+++ b/fs/hfs/string.c
@@ -51,7 +51,7 @@ static unsigned char caseorder[256] = {
/*
* Hash a string to an integer in a case-independent way
*/
-int hfs_hash_dentry(struct dentry *dentry, struct qstr *this)
+int hfs_hash_dentry(const struct dentry *dentry, struct qstr *this)
{
const unsigned char *name = this->name;
unsigned int hash, len = this->len;
@@ -92,21 +92,20 @@ int hfs_strcmp(const unsigned char *s1, unsigned int len1,
* Test for equality of two strings in the HFS filename character ordering.
* return 1 on failure and 0 on success
*/
-int hfs_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2)
+int hfs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
+ unsigned int len, const char *str, const struct qstr *name)
{
const unsigned char *n1, *n2;
- int len;
- len = s1->len;
if (len >= HFS_NAMELEN) {
- if (s2->len < HFS_NAMELEN)
+ if (name->len < HFS_NAMELEN)
return 1;
len = HFS_NAMELEN;
- } else if (len != s2->len)
+ } else if (len != name->len)
return 1;
- n1 = s1->name;
- n2 = s2->name;
+ n1 = str;
+ n2 = name->name;
while (len--) {
if (caseorder[*n1++] != caseorder[*n2++])
return 1;
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 4824c27cebb..eee7206c38d 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -29,43 +29,9 @@ static struct kmem_cache *hfs_inode_cachep;
MODULE_LICENSE("GPL");
-/*
- * hfs_write_super()
- *
- * Description:
- * This function is called by the VFS only. When the filesystem
- * is mounted r/w it updates the MDB on disk.
- * Input Variable(s):
- * struct super_block *sb: Pointer to the hfs superblock
- * Output Variable(s):
- * NONE
- * Returns:
- * void
- * Preconditions:
- * 'sb' points to a "valid" (struct super_block).
- * Postconditions:
- * The MDB is marked 'unsuccessfully unmounted' by clearing bit 8 of drAtrb
- * (hfs_put_super() must set this flag!). Some MDB fields are updated
- * and the MDB buffer is written to disk by calling hfs_mdb_commit().
- */
-static void hfs_write_super(struct super_block *sb)
-{
- lock_super(sb);
- sb->s_dirt = 0;
-
- /* sync everything to the buffers */
- if (!(sb->s_flags & MS_RDONLY))
- hfs_mdb_commit(sb);
- unlock_super(sb);
-}
-
static int hfs_sync_fs(struct super_block *sb, int wait)
{
- lock_super(sb);
hfs_mdb_commit(sb);
- sb->s_dirt = 0;
- unlock_super(sb);
-
return 0;
}
@@ -78,13 +44,44 @@ static int hfs_sync_fs(struct super_block *sb, int wait)
*/
static void hfs_put_super(struct super_block *sb)
{
- if (sb->s_dirt)
- hfs_write_super(sb);
+ cancel_delayed_work_sync(&HFS_SB(sb)->mdb_work);
hfs_mdb_close(sb);
/* release the MDB's resources */
hfs_mdb_put(sb);
}
+static void flush_mdb(struct work_struct *work)
+{
+ struct hfs_sb_info *sbi;
+ struct super_block *sb;
+
+ sbi = container_of(work, struct hfs_sb_info, mdb_work.work);
+ sb = sbi->sb;
+
+ spin_lock(&sbi->work_lock);
+ sbi->work_queued = 0;
+ spin_unlock(&sbi->work_lock);
+
+ hfs_mdb_commit(sb);
+}
+
+void hfs_mark_mdb_dirty(struct super_block *sb)
+{
+ struct hfs_sb_info *sbi = HFS_SB(sb);
+ unsigned long delay;
+
+ if (sb->s_flags & MS_RDONLY)
+ return;
+
+ spin_lock(&sbi->work_lock);
+ if (!sbi->work_queued) {
+ delay = msecs_to_jiffies(dirty_writeback_interval * 10);
+ queue_delayed_work(system_long_wq, &sbi->mdb_work, delay);
+ sbi->work_queued = 1;
+ }
+ spin_unlock(&sbi->work_lock);
+}
+
/*
* hfs_statfs()
*
@@ -115,17 +112,17 @@ static int hfs_statfs(struct dentry *dentry, struct kstatfs *buf)
static int hfs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_NODIRATIME;
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
if (!(*flags & MS_RDONLY)) {
if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
- printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
- "running fsck.hfs is recommended. leaving read-only.\n");
+ pr_warn("filesystem was not cleanly unmounted, running fsck.hfs is recommended. leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
} else if (HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_SLOCK)) {
- printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n");
+ pr_warn("filesystem is marked locked, leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
}
@@ -133,15 +130,17 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data)
return 0;
}
-static int hfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
+static int hfs_show_options(struct seq_file *seq, struct dentry *root)
{
- struct hfs_sb_info *sbi = HFS_SB(mnt->mnt_sb);
+ struct hfs_sb_info *sbi = HFS_SB(root->d_sb);
if (sbi->s_creator != cpu_to_be32(0x3f3f3f3f))
seq_printf(seq, ",creator=%.4s", (char *)&sbi->s_creator);
if (sbi->s_type != cpu_to_be32(0x3f3f3f3f))
seq_printf(seq, ",type=%.4s", (char *)&sbi->s_type);
- seq_printf(seq, ",uid=%u,gid=%u", sbi->s_uid, sbi->s_gid);
+ seq_printf(seq, ",uid=%u,gid=%u",
+ from_kuid_munged(&init_user_ns, sbi->s_uid),
+ from_kgid_munged(&init_user_ns, sbi->s_gid));
if (sbi->s_file_umask != 0133)
seq_printf(seq, ",file_umask=%o", sbi->s_file_umask);
if (sbi->s_dir_umask != 0022)
@@ -167,18 +166,23 @@ static struct inode *hfs_alloc_inode(struct super_block *sb)
return i ? &i->vfs_inode : NULL;
}
-static void hfs_destroy_inode(struct inode *inode)
+static void hfs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(hfs_inode_cachep, HFS_I(inode));
}
+static void hfs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, hfs_i_callback);
+}
+
static const struct super_operations hfs_super_operations = {
.alloc_inode = hfs_alloc_inode,
.destroy_inode = hfs_destroy_inode,
.write_inode = hfs_write_inode,
.evict_inode = hfs_evict_inode,
.put_super = hfs_put_super,
- .write_super = hfs_write_super,
.sync_fs = hfs_sync_fs,
.statfs = hfs_statfs,
.remount_fs = hfs_remount,
@@ -249,21 +253,29 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
switch (token) {
case opt_uid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: uid requires an argument\n");
+ pr_err("uid requires an argument\n");
+ return 0;
+ }
+ hsb->s_uid = make_kuid(current_user_ns(), (uid_t)tmp);
+ if (!uid_valid(hsb->s_uid)) {
+ pr_err("invalid uid %d\n", tmp);
return 0;
}
- hsb->s_uid = (uid_t)tmp;
break;
case opt_gid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: gid requires an argument\n");
+ pr_err("gid requires an argument\n");
+ return 0;
+ }
+ hsb->s_gid = make_kgid(current_user_ns(), (gid_t)tmp);
+ if (!gid_valid(hsb->s_gid)) {
+ pr_err("invalid gid %d\n", tmp);
return 0;
}
- hsb->s_gid = (gid_t)tmp;
break;
case opt_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: umask requires a value\n");
+ pr_err("umask requires a value\n");
return 0;
}
hsb->s_file_umask = (umode_t)tmp;
@@ -271,39 +283,39 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_file_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: file_umask requires a value\n");
+ pr_err("file_umask requires a value\n");
return 0;
}
hsb->s_file_umask = (umode_t)tmp;
break;
case opt_dir_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: dir_umask requires a value\n");
+ pr_err("dir_umask requires a value\n");
return 0;
}
hsb->s_dir_umask = (umode_t)tmp;
break;
case opt_part:
if (match_int(&args[0], &hsb->part)) {
- printk(KERN_ERR "hfs: part requires an argument\n");
+ pr_err("part requires an argument\n");
return 0;
}
break;
case opt_session:
if (match_int(&args[0], &hsb->session)) {
- printk(KERN_ERR "hfs: session requires an argument\n");
+ pr_err("session requires an argument\n");
return 0;
}
break;
case opt_type:
if (match_fourchar(&args[0], &hsb->s_type)) {
- printk(KERN_ERR "hfs: type requires a 4 character value\n");
+ pr_err("type requires a 4 character value\n");
return 0;
}
break;
case opt_creator:
if (match_fourchar(&args[0], &hsb->s_creator)) {
- printk(KERN_ERR "hfs: creator requires a 4 character value\n");
+ pr_err("creator requires a 4 character value\n");
return 0;
}
break;
@@ -312,14 +324,14 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_codepage:
if (hsb->nls_disk) {
- printk(KERN_ERR "hfs: unable to change codepage\n");
+ pr_err("unable to change codepage\n");
return 0;
}
p = match_strdup(&args[0]);
if (p)
hsb->nls_disk = load_nls(p);
if (!hsb->nls_disk) {
- printk(KERN_ERR "hfs: unable to load codepage \"%s\"\n", p);
+ pr_err("unable to load codepage \"%s\"\n", p);
kfree(p);
return 0;
}
@@ -327,14 +339,14 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_iocharset:
if (hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to change iocharset\n");
+ pr_err("unable to change iocharset\n");
return 0;
}
p = match_strdup(&args[0]);
if (p)
hsb->nls_io = load_nls(p);
if (!hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to load iocharset \"%s\"\n", p);
+ pr_err("unable to load iocharset \"%s\"\n", p);
kfree(p);
return 0;
}
@@ -348,7 +360,7 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
if (hsb->nls_disk && !hsb->nls_io) {
hsb->nls_io = load_nls_default();
if (!hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to load default iocharset\n");
+ pr_err("unable to load default iocharset\n");
return 0;
}
}
@@ -381,11 +393,14 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
if (!sbi)
return -ENOMEM;
+ sbi->sb = sb;
sb->s_fs_info = sbi;
+ spin_lock_init(&sbi->work_lock);
+ INIT_DELAYED_WORK(&sbi->mdb_work, flush_mdb);
res = -EINVAL;
if (!parse_options((char *)data, sbi)) {
- printk(KERN_ERR "hfs: unable to parse mount options.\n");
+ pr_err("unable to parse mount options\n");
goto bail;
}
@@ -396,14 +411,16 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
res = hfs_mdb_get(sb);
if (res) {
if (!silent)
- printk(KERN_WARNING "hfs: can't find a HFS filesystem on dev %s.\n",
+ pr_warn("can't find a HFS filesystem on dev %s\n",
hfs_mdb_name(sb));
res = -EINVAL;
goto bail;
}
/* try to get the root inode */
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ goto bail_no_root;
res = hfs_cat_find_brec(sb, HFS_ROOT_CNID, &fd);
if (!res) {
if (fd.entrylength > sizeof(rec) || fd.entrylength < 0) {
@@ -422,20 +439,17 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
if (!root_inode)
goto bail_no_root;
+ sb->s_d_op = &hfs_dentry_operations;
res = -ENOMEM;
- sb->s_root = d_alloc_root(root_inode);
+ sb->s_root = d_make_root(root_inode);
if (!sb->s_root)
- goto bail_iput;
-
- sb->s_root->d_op = &hfs_dentry_operations;
+ goto bail_no_root;
/* everything's okay */
return 0;
-bail_iput:
- iput(root_inode);
bail_no_root:
- printk(KERN_ERR "hfs: get root inode failed.\n");
+ pr_err("get root inode failed\n");
bail:
hfs_mdb_put(sb);
return res;
@@ -454,6 +468,7 @@ static struct file_system_type hfs_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("hfs");
static void hfs_init_once(void *p)
{
@@ -480,6 +495,12 @@ static int __init init_hfs_fs(void)
static void __exit exit_hfs_fs(void)
{
unregister_filesystem(&hfs_fs_type);
+
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
kmem_cache_destroy(hfs_inode_cachep);
}
diff --git a/fs/hfs/sysdep.c b/fs/hfs/sysdep.c
index 7478f5c219a..91b91fd3a90 100644
--- a/fs/hfs/sysdep.c
+++ b/fs/hfs/sysdep.c
@@ -8,15 +8,20 @@
* This file contains the code to do various system dependent things.
*/
+#include <linux/namei.h>
#include "hfs_fs.h"
/* dentry case-handling: just lowercase everything */
-static int hfs_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
+static int hfs_revalidate_dentry(struct dentry *dentry, unsigned int flags)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode;
int diff;
+ if (flags & LOOKUP_RCU)
+ return -ECHILD;
+
+ inode = dentry->d_inode;
if(!inode)
return 1;
diff --git a/fs/hfs/trans.c b/fs/hfs/trans.c
index e673a88b8ae..b1ce4c7ad3f 100644
--- a/fs/hfs/trans.c
+++ b/fs/hfs/trans.c
@@ -40,6 +40,8 @@ int hfs_mac2asc(struct super_block *sb, char *out, const struct hfs_name *in)
src = in->name;
srclen = in->len;
+ if (srclen > HFS_NAMELEN)
+ srclen = HFS_NAMELEN;
dst = out;
dstlen = HFS_MAX_NAMELEN;
if (nls_io) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 13:21:13 +0000