#include <linux/compat.h>
#include <linux/bit_spinlock.h>
#include <linux/version.h>
+#include <linux/xattr.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
ret = btrfs_drop_extents(trans, root, inode,
start, start + num_bytes, start, &alloc_hint);
- ret = btrfs_alloc_extent(trans, root, inode->i_ino, num_bytes, 0,
+ if (alloc_hint == EXTENT_MAP_INLINE)
+ goto out;
+
+ ret = btrfs_alloc_extent(trans, root, num_bytes,
+ root->root_key.objectid, trans->transid,
+ inode->i_ino, start, 0,
alloc_hint, (u64)-1, &ins, 1);
if (ret) {
WARN_ON(1);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
char *kaddr;
- int ret;
- u64 page_start = page->index << PAGE_CACHE_SHIFT;
+ int ret = 0;
+ u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
size_t offset = start - page_start;
+ if (btrfs_test_opt(root, NODATASUM))
+ return 0;
+
mutex_lock(&root->fs_info->fs_mutex);
trans = btrfs_start_transaction(root, 1);
btrfs_set_trans_block_group(trans, inode);
kaddr = kmap(page);
- btrfs_csum_file_block(trans, root, inode->i_ino,
+ btrfs_csum_file_block(trans, root, inode, inode->i_ino,
start, kaddr + offset, end - start + 1);
kunmap(page);
ret = btrfs_end_transaction(trans, root);
struct btrfs_path *path = NULL;
u32 csum;
+ if (btrfs_test_opt(root, NODATASUM))
+ return 0;
+
mutex_lock(&root->fs_info->fs_mutex);
path = btrfs_alloc_path();
item = btrfs_lookup_csum(NULL, root, path, inode->i_ino, start, 0);
int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end)
{
- size_t offset = start - (page->index << PAGE_CACHE_SHIFT);
+ size_t offset = start - ((u64)page->index << PAGE_CACHE_SHIFT);
struct inode *inode = page->mapping->host;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
char *kaddr;
int ret;
struct btrfs_root *root = BTRFS_I(inode)->root;
u32 csum = ~(u32)0;
+ unsigned long flags;
+
+ if (btrfs_test_opt(root, NODATASUM))
+ return 0;
ret = get_state_private(em_tree, start, &private);
+ local_irq_save(flags);
kaddr = kmap_atomic(page, KM_IRQ0);
if (ret) {
goto zeroit;
goto zeroit;
}
kunmap_atomic(kaddr, KM_IRQ0);
+ local_irq_restore(flags);
return 0;
zeroit:
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
kunmap_atomic(kaddr, KM_IRQ0);
+ local_irq_restore(flags);
return 0;
}
ret = btrfs_delete_one_dir_name(trans, root, path, di);
dentry->d_inode->i_ctime = dir->i_ctime;
+ ret = btrfs_del_inode_ref(trans, root, name, name_len,
+ dentry->d_inode->i_ino,
+ dentry->d_parent->d_inode->i_ino);
+ if (ret) {
+ printk("failed to delete reference to %.*s, "
+ "inode %lu parent %lu\n", name_len, name,
+ dentry->d_inode->i_ino,
+ dentry->d_parent->d_inode->i_ino);
+ }
err:
btrfs_free_path(path);
if (!ret) {
int err;
int ret;
struct btrfs_root *root = BTRFS_I(dir)->root;
- struct btrfs_path *path;
- struct btrfs_key key;
struct btrfs_trans_handle *trans;
- struct btrfs_key found_key;
- int found_type;
- struct extent_buffer *leaf;
- char *goodnames = "..";
unsigned long nr;
- path = btrfs_alloc_path();
- BUG_ON(!path);
+ if (inode->i_size > BTRFS_EMPTY_DIR_SIZE)
+ return -ENOTEMPTY;
+
mutex_lock(&root->fs_info->fs_mutex);
trans = btrfs_start_transaction(root, 1);
-
btrfs_set_trans_block_group(trans, dir);
- key.objectid = inode->i_ino;
- key.offset = (u64)-1;
- key.type = (u8)-1;
- while(1) {
- ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
- if (ret < 0) {
- err = ret;
- goto out;
- }
- BUG_ON(ret == 0);
- if (path->slots[0] == 0) {
- err = -ENOENT;
- goto out;
- }
- path->slots[0]--;
- leaf = path->nodes[0];
- btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
- found_type = btrfs_key_type(&found_key);
- if (found_key.objectid != inode->i_ino) {
- err = -ENOENT;
- goto out;
- }
- if ((found_type != BTRFS_DIR_ITEM_KEY &&
- found_type != BTRFS_DIR_INDEX_KEY) ||
- (!btrfs_match_dir_item_name(root, path, goodnames, 2) &&
- !btrfs_match_dir_item_name(root, path, goodnames, 1))) {
- err = -ENOTEMPTY;
- goto out;
- }
- ret = btrfs_del_item(trans, root, path);
- BUG_ON(ret);
-
- if (found_type == BTRFS_DIR_ITEM_KEY && found_key.offset == 1)
- break;
- btrfs_release_path(root, path);
- }
- ret = 0;
- btrfs_release_path(root, path);
/* now the directory is empty */
err = btrfs_unlink_trans(trans, root, dir, dentry);
if (!err) {
inode->i_size = 0;
}
-out:
- btrfs_release_path(root, path);
- btrfs_free_path(path);
- mutex_unlock(&root->fs_info->fs_mutex);
+
nr = trans->blocks_used;
ret = btrfs_end_transaction(trans, root);
+ mutex_unlock(&root->fs_info->fs_mutex);
btrfs_btree_balance_dirty(root, nr);
+
if (ret && !err)
err = ret;
return err;
u64 extent_start = 0;
u64 extent_num_bytes = 0;
u64 item_end = 0;
+ u64 root_gen = 0;
+ u64 root_owner = 0;
int found_extent;
int del_item;
+ int extent_type = -1;
btrfs_drop_extent_cache(inode, inode->i_size, (u64)-1);
path = btrfs_alloc_path();
if (found_type == BTRFS_EXTENT_DATA_KEY) {
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
- if (btrfs_file_extent_type(leaf, fi) !=
- BTRFS_FILE_EXTENT_INLINE) {
+ extent_type = btrfs_file_extent_type(leaf, fi);
+ if (extent_type != BTRFS_FILE_EXTENT_INLINE) {
item_end +=
btrfs_file_extent_num_bytes(leaf, fi);
+ } else if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
+ struct btrfs_item *item = btrfs_item_nr(leaf,
+ path->slots[0]);
+ item_end += btrfs_file_extent_inline_len(leaf,
+ item);
}
+ item_end--;
}
if (found_type == BTRFS_CSUM_ITEM_KEY) {
ret = btrfs_csum_truncate(trans, root, path,
break;
}
btrfs_set_key_type(&key, found_type);
+ btrfs_release_path(root, path);
continue;
}
if (found_key.offset >= inode->i_size)
found_extent = 0;
/* FIXME, shrink the extent if the ref count is only 1 */
- if (found_type == BTRFS_EXTENT_DATA_KEY &&
- btrfs_file_extent_type(leaf, fi) !=
- BTRFS_FILE_EXTENT_INLINE) {
+ if (found_type != BTRFS_EXTENT_DATA_KEY)
+ goto delete;
+
+ if (extent_type != BTRFS_FILE_EXTENT_INLINE) {
u64 num_dec;
extent_start = btrfs_file_extent_disk_bytenr(leaf, fi);
if (!del_item) {
found_extent = 1;
inode->i_blocks -= num_dec;
}
+ root_gen = btrfs_header_generation(leaf);
+ root_owner = btrfs_header_owner(leaf);
}
+ } else if (extent_type == BTRFS_FILE_EXTENT_INLINE &&
+ !del_item) {
+ u32 newsize = inode->i_size - found_key.offset;
+ newsize = btrfs_file_extent_calc_inline_size(newsize);
+ ret = btrfs_truncate_item(trans, root, path,
+ newsize, 1);
+ BUG_ON(ret);
}
+delete:
if (del_item) {
ret = btrfs_del_item(trans, root, path);
if (ret)
btrfs_release_path(root, path);
if (found_extent) {
ret = btrfs_free_extent(trans, root, extent_start,
- extent_num_bytes, 0);
+ extent_num_bytes,
+ root_owner,
+ root_gen, inode->i_ino,
+ found_key.offset, 0);
BUG_ON(ret);
}
}
char *kaddr;
int ret = 0;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
- u64 page_start = page->index << PAGE_CACHE_SHIFT;
+ u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
set_page_extent_mapped(page);
goto out;
}
}
- page_start = page->index << PAGE_CACHE_SHIFT;
+ page_start = (u64)page->index << PAGE_CACHE_SHIFT;
ret = btrfs_cow_one_page(inode, page, offset);
u64 pos = (inode->i_size + mask) & ~mask;
u64 block_end = attr->ia_size | mask;
u64 hole_size;
- u64 alloc_hint;
+ u64 alloc_hint = 0;
if (attr->ia_size <= pos)
goto out;
pos, pos + hole_size, pos,
&alloc_hint);
- err = btrfs_insert_file_extent(trans, root, inode->i_ino,
- pos, 0, 0, hole_size);
+ if (alloc_hint != EXTENT_MAP_INLINE) {
+ err = btrfs_insert_file_extent(trans, root,
+ inode->i_ino,
+ pos, 0, 0, hole_size);
+ }
btrfs_end_transaction(trans, root);
mutex_unlock(&root->fs_info->fs_mutex);
unlock_extent(em_tree, pos, block_end, GFP_NOFS);
btrfs_set_trans_block_group(trans, inode);
ret = btrfs_truncate_in_trans(trans, root, inode);
+ if (ret)
+ goto no_delete_lock;
+ ret = btrfs_delete_xattrs(trans, root, inode);
if (ret)
goto no_delete_lock;
ret = btrfs_free_inode(trans, root, inode);
struct btrfs_dir_item *di;
struct btrfs_path *path;
struct btrfs_root *root = BTRFS_I(dir)->root;
- int ret;
+ int ret = 0;
+ if (namelen == 1 && strcmp(name, ".") == 0) {
+ location->objectid = dir->i_ino;
+ location->type = BTRFS_INODE_ITEM_KEY;
+ location->offset = 0;
+ return 0;
+ }
path = btrfs_alloc_path();
BUG_ON(!path);
+
+ if (namelen == 2 && strcmp(name, "..") == 0) {
+ struct btrfs_key key;
+ struct extent_buffer *leaf;
+ u32 nritems;
+ int slot;
+
+ key.objectid = dir->i_ino;
+ btrfs_set_key_type(&key, BTRFS_INODE_REF_KEY);
+ key.offset = 0;
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ BUG_ON(ret == 0);
+ ret = 0;
+
+ leaf = path->nodes[0];
+ slot = path->slots[0];
+ nritems = btrfs_header_nritems(leaf);
+ if (slot >= nritems)
+ goto out_err;
+
+ btrfs_item_key_to_cpu(leaf, &key, slot);
+ if (key.objectid != dir->i_ino ||
+ key.type != BTRFS_INODE_REF_KEY) {
+ goto out_err;
+ }
+ location->objectid = key.offset;
+ location->type = BTRFS_INODE_ITEM_KEY;
+ location->offset = 0;
+ goto out;
+ }
+
di = btrfs_lookup_dir_item(NULL, root, path, dir->i_ino, name,
namelen, 0);
+ if (IS_ERR(di))
+ ret = PTR_ERR(di);
if (!di || IS_ERR(di)) {
- location->objectid = 0;
- ret = 0;
- goto out;
+ goto out_err;
}
btrfs_dir_item_key_to_cpu(path->nodes[0], di, location);
out:
- btrfs_release_path(root, path);
btrfs_free_path(path);
return ret;
+out_err:
+ location->objectid = 0;
+ goto out;
}
/*
if (root->fs_info->tree_root == root)
key_type = BTRFS_DIR_ITEM_KEY;
+ /* special case for "." */
+ if (filp->f_pos == 0) {
+ over = filldir(dirent, ".", 1,
+ 1, inode->i_ino,
+ DT_DIR);
+ if (over)
+ return 0;
+ filp->f_pos = 1;
+ }
+
mutex_lock(&root->fs_info->fs_mutex);
key.objectid = inode->i_ino;
+ path = btrfs_alloc_path();
+ path->reada = 2;
+
+ /* special case for .., just use the back ref */
+ if (filp->f_pos == 1) {
+ btrfs_set_key_type(&key, BTRFS_INODE_REF_KEY);
+ key.offset = 0;
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ BUG_ON(ret == 0);
+ leaf = path->nodes[0];
+ slot = path->slots[0];
+ nritems = btrfs_header_nritems(leaf);
+ if (slot >= nritems) {
+ btrfs_release_path(root, path);
+ goto read_dir_items;
+ }
+ btrfs_item_key_to_cpu(leaf, &found_key, slot);
+ btrfs_release_path(root, path);
+ if (found_key.objectid != key.objectid ||
+ found_key.type != BTRFS_INODE_REF_KEY)
+ goto read_dir_items;
+ over = filldir(dirent, "..", 2,
+ 2, found_key.offset, DT_DIR);
+ if (over)
+ goto nopos;
+ filp->f_pos = 2;
+ }
+
+read_dir_items:
btrfs_set_key_type(&key, key_type);
key.offset = filp->f_pos;
- path = btrfs_alloc_path();
- path->reada = 2;
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto err;
if (over)
goto nopos;
- di_len = btrfs_dir_name_len(leaf, di) + sizeof(*di);
+ di_len = btrfs_dir_name_len(leaf, di) +
+ btrfs_dir_data_len(leaf, di) +sizeof(*di);
di_cur += di_len;
di = (struct btrfs_dir_item *)((char *)di + di_len);
}
dentry->d_parent->d_inode->i_ino,
&key, btrfs_inode_type(inode));
if (ret == 0) {
+ ret = btrfs_insert_inode_ref(trans, root,
+ dentry->d_name.name,
+ dentry->d_name.len,
+ inode->i_ino,
+ dentry->d_parent->d_inode->i_ino);
parent_inode = dentry->d_parent->d_inode;
parent_inode->i_size += dentry->d_name.len * 2;
parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
return err;
}
-static int btrfs_make_empty_dir(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- u64 objectid, u64 dirid)
-{
- int ret;
- char buf[2];
- struct btrfs_key key;
-
- buf[0] = '.';
- buf[1] = '.';
-
- key.objectid = objectid;
- key.offset = 0;
- btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
-
- ret = btrfs_insert_dir_item(trans, root, buf, 1, objectid,
- &key, BTRFS_FT_DIR);
- if (ret)
- goto error;
-
- key.objectid = dirid;
- ret = btrfs_insert_dir_item(trans, root, buf, 2, objectid,
- &key, BTRFS_FT_DIR);
- if (ret)
- goto error;
-error:
- return ret;
-}
-
static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
struct inode *inode;
inode->i_fop = &btrfs_dir_file_operations;
btrfs_set_trans_block_group(trans, inode);
- err = btrfs_make_empty_dir(trans, root, inode->i_ino, dir->i_ino);
- if (err)
- goto out_fail;
-
- inode->i_size = 6;
+ inode->i_size = 0;
err = btrfs_update_inode(trans, root, inode);
if (err)
goto out_fail;
em->end = EXTENT_MAP_HOLE;
}
em->bdev = inode->i_sb->s_bdev;
- ret = btrfs_lookup_file_extent(NULL, root, path,
- objectid, start, 0);
+ ret = btrfs_lookup_file_extent(trans, root, path,
+ objectid, start, trans != NULL);
if (ret < 0) {
err = ret;
goto out;
size = btrfs_file_extent_inline_len(leaf, btrfs_item_nr(leaf,
path->slots[0]));
-
- extent_end = (extent_start + size) |
+ extent_end = (extent_start + size - 1) |
((u64)root->sectorsize - 1);
if (start < extent_start || start >= extent_end) {
em->start = start;
}
goto not_found_em;
}
-
- extent_offset = (page->index << PAGE_CACHE_SHIFT) -
- extent_start;
- ptr = btrfs_file_extent_inline_start(item) + extent_offset;
- map = kmap(page);
- copy_size = min(PAGE_CACHE_SIZE - page_offset,
- size - extent_offset);
-
em->block_start = EXTENT_MAP_INLINE;
em->block_end = EXTENT_MAP_INLINE;
- em->start = extent_start + extent_offset;
- em->end = (em->start + copy_size -1) |
- ((u64)root->sectorsize -1);
if (!page) {
- goto insert;
+ em->start = extent_start;
+ em->end = extent_start + size - 1;
+ goto out;
}
- read_extent_buffer(leaf, map + page_offset, ptr, copy_size);
- /*
- memset(map + page_offset + copy_size, 0,
- PAGE_CACHE_SIZE - copy_size - page_offset);
- */
- flush_dcache_page(page);
+ extent_offset = ((u64)page->index << PAGE_CACHE_SHIFT) -
+ extent_start + page_offset;
+ copy_size = min_t(u64, PAGE_CACHE_SIZE - page_offset,
+ size - extent_offset);
+ em->start = extent_start + extent_offset;
+ em->end = (em->start + copy_size -1) |
+ ((u64)root->sectorsize -1);
+ map = kmap(page);
+ ptr = btrfs_file_extent_inline_start(item) + extent_offset;
+ if (create == 0 && !PageUptodate(page)) {
+ read_extent_buffer(leaf, map + page_offset, ptr,
+ copy_size);
+ flush_dcache_page(page);
+ } else if (create && PageUptodate(page)) {
+ if (!trans) {
+ kunmap(page);
+ free_extent_map(em);
+ em = NULL;
+ btrfs_release_path(root, path);
+ trans = btrfs_start_transaction(root, 1);
+ goto again;
+ }
+ write_extent_buffer(leaf, map + page_offset, ptr,
+ copy_size);
+ btrfs_mark_buffer_dirty(leaf);
+ }
kunmap(page);
set_extent_uptodate(em_tree, em->start, em->end, GFP_NOFS);
goto insert;
return extent_write_full_page(tree, page, btrfs_get_extent, wbc);
}
+static int btrfs_writepages(struct address_space *mapping,
+ struct writeback_control *wbc)
+{
+ struct extent_map_tree *tree;
+ tree = &BTRFS_I(mapping->host)->extent_tree;
+ return extent_writepages(tree, mapping, btrfs_get_extent, wbc);
+}
+
+static int
+btrfs_readpages(struct file *file, struct address_space *mapping,
+ struct list_head *pages, unsigned nr_pages)
+{
+ struct extent_map_tree *tree;
+ tree = &BTRFS_I(mapping->host)->extent_tree;
+ return extent_readpages(tree, mapping, pages, nr_pages,
+ btrfs_get_extent);
+}
+
static int btrfs_releasepage(struct page *page, gfp_t unused_gfp_flags)
{
struct extent_map_tree *tree;
lock_page(page);
wait_on_page_writeback(page);
size = i_size_read(inode);
- page_start = page->index << PAGE_CACHE_SHIFT;
+ page_start = (u64)page->index << PAGE_CACHE_SHIFT;
if ((page->mapping != inode->i_mapping) ||
(page_start > size)) {
int btrfs_commit_write(struct file *file, struct page *page,
unsigned from, unsigned to)
{
- return extent_commit_write(&BTRFS_I(page->mapping->host)->extent_tree,
- page->mapping->host, page, from, to);
+ loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+ struct inode *inode = page->mapping->host;
+
+ btrfs_cow_one_page(inode, page, PAGE_CACHE_SIZE);
+
+ set_page_extent_mapped(page);
+ set_page_dirty(page);
+
+ if (pos > inode->i_size) {
+ i_size_write(inode, pos);
+ mark_inode_dirty(inode);
+ }
+ return 0;
}
static int create_subvol(struct btrfs_root *root, char *name, int namelen)
trans = btrfs_start_transaction(root, 1);
BUG_ON(!trans);
- leaf = btrfs_alloc_free_block(trans, root, root->leafsize, 0, 0);
+ ret = btrfs_find_free_objectid(trans, root->fs_info->tree_root,
+ 0, &objectid);
+ if (ret)
+ goto fail;
+
+ leaf = __btrfs_alloc_free_block(trans, root, root->leafsize,
+ objectid, trans->transid, 0, 0,
+ 0, 0);
if (IS_ERR(leaf))
return PTR_ERR(leaf);
btrfs_set_header_level(leaf, 0);
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
- btrfs_set_header_owner(leaf, root->root_key.objectid);
+ btrfs_set_header_owner(leaf, objectid);
+
write_extent_buffer(leaf, root->fs_info->fsid,
(unsigned long)btrfs_header_fsid(leaf),
BTRFS_FSID_SIZE);
free_extent_buffer(leaf);
leaf = NULL;
- ret = btrfs_find_free_objectid(trans, root->fs_info->tree_root,
- 0, &objectid);
- if (ret)
- goto fail;
-
btrfs_set_root_dirid(&root_item, new_dirid);
key.objectid = objectid;
if (ret)
goto fail;
+ ret = btrfs_insert_inode_ref(trans, root->fs_info->tree_root,
+ name, namelen, objectid,
+ root->fs_info->sb->s_root->d_inode->i_ino);
+ if (ret)
+ goto fail;
+
ret = btrfs_commit_transaction(trans, root);
if (ret)
goto fail_commit;
inode->i_fop = &btrfs_dir_file_operations;
new_root->inode = inode;
- ret = btrfs_make_empty_dir(trans, new_root, new_dirid, new_dirid);
- if (ret)
- goto fail;
-
+ ret = btrfs_insert_inode_ref(trans, new_root, "..", 2, new_dirid,
+ new_dirid);
inode->i_nlink = 1;
- inode->i_size = 6;
+ inode->i_size = 0;
ret = btrfs_update_inode(trans, new_root, inode);
if (ret)
goto fail;
key.objectid = objectid;
key.offset = 1;
btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
-
+ extent_buffer_get(root->node);
btrfs_cow_block(trans, root, root->node, NULL, 0, &tmp);
+ free_extent_buffer(tmp);
btrfs_set_root_bytenr(&new_root_item, root->node->start);
btrfs_set_root_level(&new_root_item, btrfs_header_level(root->node));
-
ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,
&new_root_item);
if (ret)
if (ret)
goto fail;
- ret = btrfs_inc_root_ref(trans, root);
+ ret = btrfs_insert_inode_ref(trans, root->fs_info->tree_root,
+ name, namelen, objectid,
+ root->fs_info->sb->s_root->d_inode->i_ino);
+
+ if (ret)
+ goto fail;
+
+ ret = btrfs_inc_root_ref(trans, root, objectid);
if (ret)
goto fail;
fail:
goto out_unlock;
}
}
- page_start = page->index << PAGE_CACHE_SHIFT;
+ page_start = (u64)page->index << PAGE_CACHE_SHIFT;
page_end = page_start + PAGE_CACHE_SIZE - 1;
lock_extent(em_tree, page_start, page_end, GFP_NOFS);
kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
}
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
+static void init_once(struct kmem_cache * cachep, void *foo)
+#else
static void init_once(void * foo, struct kmem_cache * cachep,
unsigned long flags)
+#endif
{
struct btrfs_inode *ei = (struct btrfs_inode *) foo;
struct kmem_cache *btrfs_cache_create(const char *name, size_t size,
unsigned long extra_flags,
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
+ void (*ctor)(struct kmem_cache *, void *)
+#else
void (*ctor)(void *, struct kmem_cache *,
- unsigned long))
+ unsigned long)
+#endif
+ )
{
return kmem_cache_create(name, size, 0, (SLAB_RECLAIM_ACCOUNT |
SLAB_MEM_SPREAD | extra_flags), ctor
struct inode *old_inode = old_dentry->d_inode;
struct timespec ctime = CURRENT_TIME;
struct btrfs_path *path;
- struct btrfs_dir_item *di;
int ret;
if (S_ISDIR(old_inode->i_mode) && new_inode &&
new_dir->i_ctime = new_dir->i_mtime = ctime;
old_inode->i_ctime = ctime;
- if (S_ISDIR(old_inode->i_mode) && old_dir != new_dir) {
- struct btrfs_key *location = &BTRFS_I(new_dir)->location;
- struct btrfs_key old_parent_key;
- di = btrfs_lookup_dir_item(trans, root, path, old_inode->i_ino,
- "..", 2, -1);
- if (IS_ERR(di)) {
- ret = PTR_ERR(di);
- goto out_fail;
- }
- if (!di) {
- ret = -ENOENT;
- goto out_fail;
- }
- btrfs_dir_item_key_to_cpu(path->nodes[0], di, &old_parent_key);
- ret = btrfs_del_item(trans, root, path);
- if (ret) {
- goto out_fail;
- }
- btrfs_release_path(root, path);
-
- di = btrfs_lookup_dir_index_item(trans, root, path,
- old_inode->i_ino,
- old_parent_key.objectid,
- "..", 2, -1);
- if (IS_ERR(di)) {
- ret = PTR_ERR(di);
- goto out_fail;
- }
- if (!di) {
- ret = -ENOENT;
- goto out_fail;
- }
- ret = btrfs_del_item(trans, root, path);
- if (ret) {
- goto out_fail;
- }
- btrfs_release_path(root, path);
-
- ret = btrfs_insert_dir_item(trans, root, "..", 2,
- old_inode->i_ino, location,
- BTRFS_FT_DIR);
- if (ret)
- goto out_fail;
- }
-
-
ret = btrfs_unlink_trans(trans, root, old_dir, old_dentry);
if (ret)
goto out_fail;
.symlink = btrfs_symlink,
.setattr = btrfs_setattr,
.mknod = btrfs_mknod,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .listxattr = btrfs_listxattr,
+ .removexattr = generic_removexattr,
};
static struct inode_operations btrfs_dir_ro_inode_operations = {
static struct address_space_operations btrfs_aops = {
.readpage = btrfs_readpage,
.writepage = btrfs_writepage,
+ .writepages = btrfs_writepages,
+ .readpages = btrfs_readpages,
.sync_page = block_sync_page,
.prepare_write = btrfs_prepare_write,
.commit_write = btrfs_commit_write,
.truncate = btrfs_truncate,
.getattr = btrfs_getattr,
.setattr = btrfs_setattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .listxattr = btrfs_listxattr,
+ .removexattr = generic_removexattr,
};
static struct inode_operations btrfs_special_inode_operations = {
projects / mv-sheeva.git / blobdiff