summaryrefslogtreecommitdiffstats
path: root/fs/hfsplus
diff options
context:
space:
mode:
Diffstat (limited to 'fs/hfsplus')
-rw-r--r--fs/hfsplus/bitmap.c20
-rw-r--r--fs/hfsplus/bnode.c105
-rw-r--r--fs/hfsplus/btree.c27
3 files changed, 72 insertions, 80 deletions
diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index cebce0cfe340..bd8dcea85588 100644
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -39,7 +39,7 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size,
start = size;
goto out;
}
- pptr = kmap(page);
+ pptr = kmap_local_page(page);
curr = pptr + (offset & (PAGE_CACHE_BITS - 1)) / 32;
i = offset % 32;
offset &= ~(PAGE_CACHE_BITS - 1);
@@ -74,7 +74,7 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size,
}
curr++;
}
- kunmap(page);
+ kunmap_local(pptr);
offset += PAGE_CACHE_BITS;
if (offset >= size)
break;
@@ -84,7 +84,7 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size,
start = size;
goto out;
}
- curr = pptr = kmap(page);
+ curr = pptr = kmap_local_page(page);
if ((size ^ offset) / PAGE_CACHE_BITS)
end = pptr + PAGE_CACHE_BITS / 32;
else
@@ -127,7 +127,7 @@ found:
len -= 32;
}
set_page_dirty(page);
- kunmap(page);
+ kunmap_local(pptr);
offset += PAGE_CACHE_BITS;
page = read_mapping_page(mapping, offset / PAGE_CACHE_BITS,
NULL);
@@ -135,7 +135,7 @@ found:
start = size;
goto out;
}
- pptr = kmap(page);
+ pptr = kmap_local_page(page);
curr = pptr;
end = pptr + PAGE_CACHE_BITS / 32;
}
@@ -151,7 +151,7 @@ last:
done:
*curr = cpu_to_be32(n);
set_page_dirty(page);
- kunmap(page);
+ kunmap_local(pptr);
*max = offset + (curr - pptr) * 32 + i - start;
sbi->free_blocks -= *max;
hfsplus_mark_mdb_dirty(sb);
@@ -185,7 +185,7 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
page = read_mapping_page(mapping, pnr, NULL);
if (IS_ERR(page))
goto kaboom;
- pptr = kmap(page);
+ pptr = kmap_local_page(page);
curr = pptr + (offset & (PAGE_CACHE_BITS - 1)) / 32;
end = pptr + PAGE_CACHE_BITS / 32;
len = count;
@@ -215,11 +215,11 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
if (!count)
break;
set_page_dirty(page);
- kunmap(page);
+ kunmap_local(pptr);
page = read_mapping_page(mapping, ++pnr, NULL);
if (IS_ERR(page))
goto kaboom;
- pptr = kmap(page);
+ pptr = kmap_local_page(page);
curr = pptr;
end = pptr + PAGE_CACHE_BITS / 32;
}
@@ -231,7 +231,7 @@ done:
}
out:
set_page_dirty(page);
- kunmap(page);
+ kunmap_local(pptr);
sbi->free_blocks += len;
hfsplus_mark_mdb_dirty(sb);
mutex_unlock(&sbi->alloc_mutex);
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index a5ab00e54220..87974d5e6791 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -29,14 +29,12 @@ void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len)
off &= ~PAGE_MASK;
l = min_t(int, len, PAGE_SIZE - off);
- memcpy(buf, kmap(*pagep) + off, l);
- kunmap(*pagep);
+ memcpy_from_page(buf, *pagep, off, l);
while ((len -= l) != 0) {
buf += l;
l = min_t(int, len, PAGE_SIZE);
- memcpy(buf, kmap(*++pagep), l);
- kunmap(*pagep);
+ memcpy_from_page(buf, *++pagep, 0, l);
}
}
@@ -82,16 +80,14 @@ void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len)
off &= ~PAGE_MASK;
l = min_t(int, len, PAGE_SIZE - off);
- memcpy(kmap(*pagep) + off, buf, l);
+ memcpy_to_page(*pagep, off, buf, l);
set_page_dirty(*pagep);
- kunmap(*pagep);
while ((len -= l) != 0) {
buf += l;
l = min_t(int, len, PAGE_SIZE);
- memcpy(kmap(*++pagep), buf, l);
+ memcpy_to_page(*++pagep, 0, buf, l);
set_page_dirty(*pagep);
- kunmap(*pagep);
}
}
@@ -112,15 +108,13 @@ void hfs_bnode_clear(struct hfs_bnode *node, int off, int len)
off &= ~PAGE_MASK;
l = min_t(int, len, PAGE_SIZE - off);
- memset(kmap(*pagep) + off, 0, l);
+ memzero_page(*pagep, off, l);
set_page_dirty(*pagep);
- kunmap(*pagep);
while ((len -= l) != 0) {
l = min_t(int, len, PAGE_SIZE);
- memset(kmap(*++pagep), 0, l);
+ memzero_page(*++pagep, 0, l);
set_page_dirty(*pagep);
- kunmap(*pagep);
}
}
@@ -142,24 +136,20 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
if (src == dst) {
l = min_t(int, len, PAGE_SIZE - src);
- memcpy(kmap(*dst_page) + src, kmap(*src_page) + src, l);
- kunmap(*src_page);
+ memcpy_page(*dst_page, src, *src_page, src, l);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
while ((len -= l) != 0) {
l = min_t(int, len, PAGE_SIZE);
- memcpy(kmap(*++dst_page), kmap(*++src_page), l);
- kunmap(*src_page);
+ memcpy_page(*++dst_page, 0, *++src_page, 0, l);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
}
} else {
void *src_ptr, *dst_ptr;
do {
- src_ptr = kmap(*src_page) + src;
- dst_ptr = kmap(*dst_page) + dst;
+ dst_ptr = kmap_local_page(*dst_page) + dst;
+ src_ptr = kmap_local_page(*src_page) + src;
if (PAGE_SIZE - src < PAGE_SIZE - dst) {
l = PAGE_SIZE - src;
src = 0;
@@ -171,9 +161,9 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
}
l = min(len, l);
memcpy(dst_ptr, src_ptr, l);
- kunmap(*src_page);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
if (!dst)
dst_page++;
else
@@ -185,6 +175,7 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
{
struct page **src_page, **dst_page;
+ void *src_ptr, *dst_ptr;
int l;
hfs_dbg(BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
@@ -202,27 +193,28 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
if (src == dst) {
while (src < len) {
- memmove(kmap(*dst_page), kmap(*src_page), src);
- kunmap(*src_page);
+ dst_ptr = kmap_local_page(*dst_page);
+ src_ptr = kmap_local_page(*src_page);
+ memmove(dst_ptr, src_ptr, src);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
len -= src;
src = PAGE_SIZE;
src_page--;
dst_page--;
}
src -= len;
- memmove(kmap(*dst_page) + src,
- kmap(*src_page) + src, len);
- kunmap(*src_page);
+ dst_ptr = kmap_local_page(*dst_page);
+ src_ptr = kmap_local_page(*src_page);
+ memmove(dst_ptr + src, src_ptr + src, len);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
} else {
- void *src_ptr, *dst_ptr;
-
do {
- src_ptr = kmap(*src_page) + src;
- dst_ptr = kmap(*dst_page) + dst;
+ dst_ptr = kmap_local_page(*dst_page) + dst;
+ src_ptr = kmap_local_page(*src_page) + src;
if (src < dst) {
l = src;
src = PAGE_SIZE;
@@ -234,9 +226,9 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
}
l = min(len, l);
memmove(dst_ptr - l, src_ptr - l, l);
- kunmap(*src_page);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
if (dst == PAGE_SIZE)
dst_page--;
else
@@ -251,26 +243,27 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
if (src == dst) {
l = min_t(int, len, PAGE_SIZE - src);
- memmove(kmap(*dst_page) + src,
- kmap(*src_page) + src, l);
- kunmap(*src_page);
+
+ dst_ptr = kmap_local_page(*dst_page) + src;
+ src_ptr = kmap_local_page(*src_page) + src;
+ memmove(dst_ptr, src_ptr, l);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
while ((len -= l) != 0) {
l = min_t(int, len, PAGE_SIZE);
- memmove(kmap(*++dst_page),
- kmap(*++src_page), l);
- kunmap(*src_page);
+ dst_ptr = kmap_local_page(*++dst_page);
+ src_ptr = kmap_local_page(*++src_page);
+ memmove(dst_ptr, src_ptr, l);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
}
} else {
- void *src_ptr, *dst_ptr;
-
do {
- src_ptr = kmap(*src_page) + src;
- dst_ptr = kmap(*dst_page) + dst;
+ dst_ptr = kmap_local_page(*dst_page) + dst;
+ src_ptr = kmap_local_page(*src_page) + src;
if (PAGE_SIZE - src <
PAGE_SIZE - dst) {
l = PAGE_SIZE - src;
@@ -283,9 +276,9 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
}
l = min(len, l);
memmove(dst_ptr, src_ptr, l);
- kunmap(*src_page);
+ kunmap_local(src_ptr);
set_page_dirty(*dst_page);
- kunmap(*dst_page);
+ kunmap_local(dst_ptr);
if (!dst)
dst_page++;
else
@@ -498,14 +491,14 @@ struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num)
if (!test_bit(HFS_BNODE_NEW, &node->flags))
return node;
- desc = (struct hfs_bnode_desc *)(kmap(node->page[0]) +
- node->page_offset);
+ desc = (struct hfs_bnode_desc *)(kmap_local_page(node->page[0]) +
+ node->page_offset);
node->prev = be32_to_cpu(desc->prev);
node->next = be32_to_cpu(desc->next);
node->num_recs = be16_to_cpu(desc->num_recs);
node->type = desc->type;
node->height = desc->height;
- kunmap(node->page[0]);
+ kunmap_local(desc);
switch (node->type) {
case HFS_NODE_HEADER:
@@ -589,14 +582,12 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
}
pagep = node->page;
- memset(kmap(*pagep) + node->page_offset, 0,
- min_t(int, PAGE_SIZE, tree->node_size));
+ memzero_page(*pagep, node->page_offset,
+ min_t(int, PAGE_SIZE, tree->node_size));
set_page_dirty(*pagep);
- kunmap(*pagep);
for (i = 1; i < tree->pages_per_bnode; i++) {
- memset(kmap(*++pagep), 0, PAGE_SIZE);
+ memzero_page(*++pagep, 0, PAGE_SIZE);
set_page_dirty(*pagep);
- kunmap(*pagep);
}
clear_bit(HFS_BNODE_NEW, &node->flags);
wake_up(&node->lock_wq);
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 66774f4cb4fd..9e1732a2b92a 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -163,7 +163,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
goto free_inode;
/* Load the header */
- head = (struct hfs_btree_header_rec *)(kmap(page) +
+ head = (struct hfs_btree_header_rec *)(kmap_local_page(page) +
sizeof(struct hfs_bnode_desc));
tree->root = be32_to_cpu(head->root);
tree->leaf_count = be32_to_cpu(head->leaf_count);
@@ -240,11 +240,12 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
(tree->node_size + PAGE_SIZE - 1) >>
PAGE_SHIFT;
- kunmap(page);
+ kunmap_local(head);
put_page(page);
return tree;
fail_page:
+ kunmap_local(head);
put_page(page);
free_inode:
tree->inode->i_mapping->a_ops = &hfsplus_aops;
@@ -291,7 +292,7 @@ int hfs_btree_write(struct hfs_btree *tree)
return -EIO;
/* Load the header */
page = node->page[0];
- head = (struct hfs_btree_header_rec *)(kmap(page) +
+ head = (struct hfs_btree_header_rec *)(kmap_local_page(page) +
sizeof(struct hfs_bnode_desc));
head->root = cpu_to_be32(tree->root);
@@ -303,7 +304,7 @@ int hfs_btree_write(struct hfs_btree *tree)
head->attributes = cpu_to_be32(tree->attributes);
head->depth = cpu_to_be16(tree->depth);
- kunmap(page);
+ kunmap_local(head);
set_page_dirty(page);
hfs_bnode_put(node);
return 0;
@@ -394,7 +395,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
off += node->page_offset;
pagep = node->page + (off >> PAGE_SHIFT);
- data = kmap(*pagep);
+ data = kmap_local_page(*pagep);
off &= ~PAGE_MASK;
idx = 0;
@@ -407,7 +408,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
idx += i;
data[off] |= m;
set_page_dirty(*pagep);
- kunmap(*pagep);
+ kunmap_local(data);
tree->free_nodes--;
mark_inode_dirty(tree->inode);
hfs_bnode_put(node);
@@ -417,14 +418,14 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
}
}
if (++off >= PAGE_SIZE) {
- kunmap(*pagep);
- data = kmap(*++pagep);
+ kunmap_local(data);
+ data = kmap_local_page(*++pagep);
off = 0;
}
idx += 8;
len--;
}
- kunmap(*pagep);
+ kunmap_local(data);
nidx = node->next;
if (!nidx) {
hfs_dbg(BNODE_MOD, "create new bmap node\n");
@@ -440,7 +441,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
off = off16;
off += node->page_offset;
pagep = node->page + (off >> PAGE_SHIFT);
- data = kmap(*pagep);
+ data = kmap_local_page(*pagep);
off &= ~PAGE_MASK;
}
}
@@ -490,7 +491,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
}
off += node->page_offset + nidx / 8;
page = node->page[off >> PAGE_SHIFT];
- data = kmap(page);
+ data = kmap_local_page(page);
off &= ~PAGE_MASK;
m = 1 << (~nidx & 7);
byte = data[off];
@@ -498,13 +499,13 @@ void hfs_bmap_free(struct hfs_bnode *node)
pr_crit("trying to free free bnode "
"%u(%d)\n",
node->this, node->type);
- kunmap(page);
+ kunmap_local(data);
hfs_bnode_put(node);
return;
}
data[off] = byte & ~m;
set_page_dirty(page);
- kunmap(page);
+ kunmap_local(data);
hfs_bnode_put(node);
tree->free_nodes++;
mark_inode_dirty(tree->inode);
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-22 11:18:15 +0000