* Copyright 1999 Hans Reiser, see reiserfs/README for licensing and copyright details
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
/* path points to first direct item of the file regarless of how many of
them are there */
int direct2indirect(struct reiserfs_transaction_handle *th, struct inode *inode,
- struct path *path, struct buffer_head *unbh,
+ struct treepath *path, struct buffer_head *unbh,
loff_t tail_offset)
{
struct super_block *sb = inode->i_sb;
converted item. */
struct item_head ind_ih; /* new indirect item to be inserted or
key of unfm pointer to be pasted */
- int n_blk_size, n_retval; /* returned value for reiserfs_insert_item and clones */
+ int blk_size, retval; /* returned value for reiserfs_insert_item and clones */
unp_t unfm_ptr; /* Handle on an unformatted node
that will be inserted in the
tree. */
REISERFS_SB(sb)->s_direct2indirect++;
- n_blk_size = sb->s_blocksize;
+ blk_size = sb->s_blocksize;
/* and key to search for append or insert pointer to the new
unformatted node. */
/* Set the key to search for the place for new unfm pointer */
make_cpu_key(&end_key, inode, tail_offset, TYPE_INDIRECT, 4);
- // FIXME: we could avoid this
+ /* FIXME: we could avoid this */
if (search_for_position_by_key(sb, &end_key, path) == POSITION_FOUND) {
- reiserfs_warning(sb, "PAP-14030: direct2indirect: "
- "pasted or inserted byte exists in the tree %K. "
- "Use fsck to repair.", &end_key);
+ reiserfs_error(sb, "PAP-14030",
+ "pasted or inserted byte exists in "
+ "the tree %K. Use fsck to repair.", &end_key);
pathrelse(path);
return -EIO;
}
set_ih_free_space(&ind_ih, 0); /* delete at nearest future */
put_ih_item_len(&ind_ih, UNFM_P_SIZE);
PATH_LAST_POSITION(path)++;
- n_retval =
+ retval =
reiserfs_insert_item(th, path, &end_key, &ind_ih, inode,
(char *)&unfm_ptr);
} else {
/* Paste into last indirect item of an object. */
- n_retval = reiserfs_paste_into_item(th, path, &end_key, inode,
+ retval = reiserfs_paste_into_item(th, path, &end_key, inode,
(char *)&unfm_ptr,
UNFM_P_SIZE);
}
- if (n_retval) {
- return n_retval;
+ if (retval) {
+ return retval;
}
// note: from here there are two keys which have matching first
// three key components. They only differ by the fourth one.
last item of the file */
if (search_for_position_by_key(sb, &end_key, path) ==
POSITION_FOUND)
- reiserfs_panic(sb,
- "PAP-14050: direct2indirect: "
+ reiserfs_panic(sb, "PAP-14050",
"direct item (%K) not found", &end_key);
p_le_ih = PATH_PITEM_HEAD(path);
RFALSE(!is_direct_le_ih(p_le_ih),
"vs-14055: direct item expected(%K), found %h",
&end_key, p_le_ih);
- tail_size = (le_ih_k_offset(p_le_ih) & (n_blk_size - 1))
+ tail_size = (le_ih_k_offset(p_le_ih) & (blk_size - 1))
+ ih_item_len(p_le_ih) - 1;
/* we only send the unbh pointer if the buffer is not up to date.
} else {
up_to_date_bh = unbh;
}
- n_retval = reiserfs_delete_item(th, path, &end_key, inode,
+ retval = reiserfs_delete_item(th, path, &end_key, inode,
up_to_date_bh);
- total_tail += n_retval;
- if (tail_size == n_retval)
+ total_tail += retval;
+ if (tail_size == retval)
// done: file does not have direct items anymore
break;
unsigned pgoff =
(tail_offset + total_tail - 1) & (PAGE_CACHE_SIZE - 1);
char *kaddr = kmap_atomic(up_to_date_bh->b_page, KM_USER0);
- memset(kaddr + pgoff, 0, n_blk_size - total_tail);
+ memset(kaddr + pgoff, 0, blk_size - total_tail);
kunmap_atomic(kaddr, KM_USER0);
}
what we expect from it (number of cut bytes). But when tail remains
in the unformatted node, we set mode to SKIP_BALANCING and unlock
inode */
-int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_inode, struct page *page, struct path *p_s_path, /* path to the indirect item. */
- const struct cpu_key *p_s_item_key, /* Key to look for unformatted node pointer to be cut. */
+int indirect2direct(struct reiserfs_transaction_handle *th,
+ struct inode *inode, struct page *page,
+ struct treepath *path, /* path to the indirect item. */
+ const struct cpu_key *item_key, /* Key to look for
+ * unformatted node
+ * pointer to be cut. */
loff_t n_new_file_size, /* New file size. */
- char *p_c_mode)
+ char *mode)
{
- struct super_block *p_s_sb = p_s_inode->i_sb;
+ struct super_block *sb = inode->i_sb;
struct item_head s_ih;
- unsigned long n_block_size = p_s_sb->s_blocksize;
+ unsigned long block_size = sb->s_blocksize;
char *tail;
int tail_len, round_tail_len;
loff_t pos, pos1; /* position of first byte of the tail */
BUG_ON(!th->t_trans_id);
- REISERFS_SB(p_s_sb)->s_indirect2direct++;
+ REISERFS_SB(sb)->s_indirect2direct++;
- *p_c_mode = M_SKIP_BALANCING;
+ *mode = M_SKIP_BALANCING;
/* store item head path points to. */
- copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+ copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
- tail_len = (n_new_file_size & (n_block_size - 1));
- if (get_inode_sd_version(p_s_inode) == STAT_DATA_V2)
+ tail_len = (n_new_file_size & (block_size - 1));
+ if (get_inode_sd_version(inode) == STAT_DATA_V2)
round_tail_len = ROUND_UP(tail_len);
else
round_tail_len = tail_len;
pos =
le_ih_k_offset(&s_ih) - 1 + (ih_item_len(&s_ih) / UNFM_P_SIZE -
- 1) * p_s_sb->s_blocksize;
+ 1) * sb->s_blocksize;
pos1 = pos;
- // we are protected by i_sem. The tail can not disapper, not
+ // we are protected by i_mutex. The tail can not disapper, not
// append can be done either
// we are in truncate or packing tail in file_release
tail = (char *)kmap(page); /* this can schedule */
- if (path_changed(&s_ih, p_s_path)) {
+ if (path_changed(&s_ih, path)) {
/* re-search indirect item */
- if (search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path)
+ if (search_for_position_by_key(sb, item_key, path)
== POSITION_NOT_FOUND)
- reiserfs_panic(p_s_sb,
- "PAP-5520: indirect2direct: "
+ reiserfs_panic(sb, "PAP-5520",
"item to be converted %K does not exist",
- p_s_item_key);
- copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+ item_key);
+ copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
#ifdef CONFIG_REISERFS_CHECK
pos = le_ih_k_offset(&s_ih) - 1 +
(ih_item_len(&s_ih) / UNFM_P_SIZE -
- 1) * p_s_sb->s_blocksize;
+ 1) * sb->s_blocksize;
if (pos != pos1)
- reiserfs_panic(p_s_sb, "vs-5530: indirect2direct: "
- "tail position changed while we were reading it");
+ reiserfs_panic(sb, "vs-5530", "tail position "
+ "changed while we were reading it");
#endif
}
/* Set direct item header to insert. */
- make_le_item_head(&s_ih, NULL, get_inode_item_key_version(p_s_inode),
+ make_le_item_head(&s_ih, NULL, get_inode_item_key_version(inode),
pos1 + 1, TYPE_DIRECT, round_tail_len,
0xffff /*ih_free_space */ );
*/
tail = tail + (pos & (PAGE_CACHE_SIZE - 1));
- PATH_LAST_POSITION(p_s_path)++;
+ PATH_LAST_POSITION(path)++;
- key = *p_s_item_key;
+ key = *item_key;
set_cpu_key_k_type(&key, TYPE_DIRECT);
key.key_length = 4;
/* Insert tail as new direct item in the tree */
- if (reiserfs_insert_item(th, p_s_path, &key, &s_ih, p_s_inode,
+ if (reiserfs_insert_item(th, path, &key, &s_ih, inode,
tail ? tail : NULL) < 0) {
/* No disk memory. So we can not convert last unformatted node
to the direct item. In this case we used to adjust
unformatted node. For now i_size is considered as guard for
going out of file size */
kunmap(page);
- return n_block_size - round_tail_len;
+ return block_size - round_tail_len;
}
kunmap(page);
/* make sure to get the i_blocks changes from reiserfs_insert_item */
- reiserfs_update_sd(th, p_s_inode);
+ reiserfs_update_sd(th, inode);
// note: we have now the same as in above direct2indirect
// conversion: there are two keys which have matching first three
/* We have inserted new direct item and must remove last
unformatted node. */
- *p_c_mode = M_CUT;
+ *mode = M_CUT;
/* we store position of first direct item in the in-core inode */
- //mark_file_with_tail (p_s_inode, pos1 + 1);
- REISERFS_I(p_s_inode)->i_first_direct_byte = pos1 + 1;
+ /* mark_file_with_tail (inode, pos1 + 1); */
+ REISERFS_I(inode)->i_first_direct_byte = pos1 + 1;
- return n_block_size - round_tail_len;
+ return block_size - round_tail_len;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff