**
** on failure, nonzero is returned, page_result and bh_result are untouched.
*/
-static int grab_tail_page(struct inode *p_s_inode,
+static int grab_tail_page(struct inode *inode,
struct page **page_result,
struct buffer_head **bh_result)
{
/* we want the page with the last byte in the file,
** not the page that will hold the next byte for appending
*/
- unsigned long index = (p_s_inode->i_size - 1) >> PAGE_CACHE_SHIFT;
+ unsigned long index = (inode->i_size - 1) >> PAGE_CACHE_SHIFT;
unsigned long pos = 0;
unsigned long start = 0;
- unsigned long blocksize = p_s_inode->i_sb->s_blocksize;
- unsigned long offset = (p_s_inode->i_size) & (PAGE_CACHE_SIZE - 1);
+ unsigned long blocksize = inode->i_sb->s_blocksize;
+ unsigned long offset = (inode->i_size) & (PAGE_CACHE_SIZE - 1);
struct buffer_head *bh;
struct buffer_head *head;
struct page *page;
if ((offset & (blocksize - 1)) == 0) {
return -ENOENT;
}
- page = grab_cache_page(p_s_inode->i_mapping, index);
+ page = grab_cache_page(inode->i_mapping, index);
error = -ENOMEM;
if (!page) {
goto out;
** I've screwed up the code to find the buffer, or the code to
** call prepare_write
*/
- reiserfs_error(p_s_inode->i_sb, "clm-6000",
+ reiserfs_error(inode->i_sb, "clm-6000",
"error reading block %lu", bh->b_blocknr);
error = -EIO;
goto unlock;
**
** some code taken from block_truncate_page
*/
-int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
+int reiserfs_truncate_file(struct inode *inode, int update_timestamps)
{
struct reiserfs_transaction_handle th;
/* we want the offset for the first byte after the end of the file */
- unsigned long offset = p_s_inode->i_size & (PAGE_CACHE_SIZE - 1);
- unsigned blocksize = p_s_inode->i_sb->s_blocksize;
+ unsigned long offset = inode->i_size & (PAGE_CACHE_SIZE - 1);
+ unsigned blocksize = inode->i_sb->s_blocksize;
unsigned length;
struct page *page = NULL;
int error;
struct buffer_head *bh = NULL;
int err2;
- reiserfs_write_lock(p_s_inode->i_sb);
+ reiserfs_write_lock(inode->i_sb);
- if (p_s_inode->i_size > 0) {
- if ((error = grab_tail_page(p_s_inode, &page, &bh))) {
+ if (inode->i_size > 0) {
+ error = grab_tail_page(inode, &page, &bh);
+ if (error) {
// -ENOENT means we truncated past the end of the file,
// and get_block_create_0 could not find a block to read in,
// which is ok.
if (error != -ENOENT)
- reiserfs_error(p_s_inode->i_sb, "clm-6001",
+ reiserfs_error(inode->i_sb, "clm-6001",
"grab_tail_page failed %d",
error);
page = NULL;
/* it is enough to reserve space in transaction for 2 balancings:
one for "save" link adding and another for the first
cut_from_item. 1 is for update_sd */
- error = journal_begin(&th, p_s_inode->i_sb,
+ error = journal_begin(&th, inode->i_sb,
JOURNAL_PER_BALANCE_CNT * 2 + 1);
if (error)
goto out;
- reiserfs_update_inode_transaction(p_s_inode);
+ reiserfs_update_inode_transaction(inode);
if (update_timestamps)
/* we are doing real truncate: if the system crashes before the last
transaction of truncating gets committed - on reboot the file
either appears truncated properly or not truncated at all */
- add_save_link(&th, p_s_inode, 1);
- err2 = reiserfs_do_truncate(&th, p_s_inode, page, update_timestamps);
+ add_save_link(&th, inode, 1);
+ err2 = reiserfs_do_truncate(&th, inode, page, update_timestamps);
error =
- journal_end(&th, p_s_inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
+ journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
if (error)
goto out;
}
if (update_timestamps) {
- error = remove_save_link(p_s_inode, 1 /* truncate */ );
+ error = remove_save_link(inode, 1 /* truncate */);
if (error)
goto out;
}
page_cache_release(page);
}
- reiserfs_write_unlock(p_s_inode->i_sb);
+ reiserfs_write_unlock(inode->i_sb);
return 0;
out:
if (page) {
unlock_page(page);
page_cache_release(page);
}
- reiserfs_write_unlock(p_s_inode->i_sb);
+ reiserfs_write_unlock(inode->i_sb);
return error;
}
/* Delete object item. */
int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path, /* Path to the deleted item. */
const struct cpu_key *p_s_item_key, /* Key to search for the deleted item. */
- struct inode *p_s_inode, /* inode is here just to update i_blocks and quotas */
+ struct inode *inode, /* inode is here just to update
+ * i_blocks and quotas */
struct buffer_head *p_s_un_bh)
{ /* NULL or unformatted node pointer. */
- struct super_block *sb = p_s_inode->i_sb;
+ struct super_block *sb = inode->i_sb;
struct tree_balance s_del_balance;
struct item_head s_ih;
struct item_head *q_ih;
n_iter++;
c_mode =
#endif
- prepare_for_delete_or_cut(th, p_s_inode, p_s_path,
+ prepare_for_delete_or_cut(th, inode, p_s_path,
p_s_item_key, &n_removed,
&n_del_size,
- max_reiserfs_offset(p_s_inode));
+ max_reiserfs_offset(inode));
RFALSE(c_mode != M_DELETE, "PAP-5320: mode must be M_DELETE");
** split into multiple items, and we only want to decrement for
** the unfm node once
*/
- if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(q_ih)) {
+ if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(q_ih)) {
if ((le_ih_k_offset(q_ih) & (sb->s_blocksize - 1)) == 1) {
quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
} else {
#ifdef REISERQUOTA_DEBUG
reiserfs_debug(sb, REISERFS_DEBUG_CODE,
"reiserquota delete_item(): freeing %u, id=%u type=%c",
- quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
+ quota_cut_bytes, inode->i_uid, head2type(&s_ih));
#endif
- DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ DQUOT_FREE_SPACE_NODIRTY(inode, quota_cut_bytes);
/* Return deleted body length */
return n_ret_value;
}
static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
- struct inode *p_s_inode,
+ struct inode *inode,
struct page *page,
struct treepath *p_s_path,
const struct cpu_key *p_s_item_key,
loff_t n_new_file_size, char *p_c_mode)
{
- struct super_block *sb = p_s_inode->i_sb;
+ struct super_block *sb = inode->i_sb;
int n_block_size = sb->s_blocksize;
int cut_bytes;
BUG_ON(!th->t_trans_id);
- BUG_ON(n_new_file_size != p_s_inode->i_size);
+ BUG_ON(n_new_file_size != inode->i_size);
/* the page being sent in could be NULL if there was an i/o error
** reading in the last block. The user will hit problems trying to
** read the file, but for now we just skip the indirect2direct
*/
- if (atomic_read(&p_s_inode->i_count) > 1 ||
- !tail_has_to_be_packed(p_s_inode) ||
- !page || (REISERFS_I(p_s_inode)->i_flags & i_nopack_mask)) {
+ if (atomic_read(&inode->i_count) > 1 ||
+ !tail_has_to_be_packed(inode) ||
+ !page || (REISERFS_I(inode)->i_flags & i_nopack_mask)) {
/* leave tail in an unformatted node */
*p_c_mode = M_SKIP_BALANCING;
cut_bytes =
return cut_bytes;
}
/* Permorm the conversion to a direct_item. */
- /*return indirect_to_direct (p_s_inode, p_s_path, p_s_item_key, n_new_file_size, p_c_mode); */
- return indirect2direct(th, p_s_inode, page, p_s_path, p_s_item_key,
+ /* return indirect_to_direct(inode, p_s_path, p_s_item_key,
+ n_new_file_size, p_c_mode); */
+ return indirect2direct(th, inode, page, p_s_path, p_s_item_key,
n_new_file_size, p_c_mode);
}
int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
struct treepath *p_s_path,
struct cpu_key *p_s_item_key,
- struct inode *p_s_inode,
+ struct inode *inode,
struct page *page, loff_t n_new_file_size)
{
- struct super_block *sb = p_s_inode->i_sb;
+ struct super_block *sb = inode->i_sb;
/* Every function which is going to call do_balance must first
create a tree_balance structure. Then it must fill up this
structure by using the init_tb_struct and fix_nodes functions.
BUG_ON(!th->t_trans_id);
- init_tb_struct(th, &s_cut_balance, p_s_inode->i_sb, p_s_path,
+ init_tb_struct(th, &s_cut_balance, inode->i_sb, p_s_path,
n_cut_size);
/* Repeat this loop until we either cut the item without needing
pointers. */
c_mode =
- prepare_for_delete_or_cut(th, p_s_inode, p_s_path,
+ prepare_for_delete_or_cut(th, inode, p_s_path,
p_s_item_key, &n_removed,
&n_cut_size, n_new_file_size);
if (c_mode == M_CONVERT) {
"PAP-5570: can not convert twice");
n_ret_value =
- maybe_indirect_to_direct(th, p_s_inode, page,
+ maybe_indirect_to_direct(th, inode, page,
p_s_path, p_s_item_key,
n_new_file_size, &c_mode);
if (c_mode == M_SKIP_BALANCING)
if (n_is_inode_locked) {
// FIXME: this seems to be not needed: we are always able
// to cut item
- indirect_to_direct_roll_back(th, p_s_inode, p_s_path);
+ indirect_to_direct_roll_back(th, inode, p_s_path);
}
if (n_ret_value == NO_DISK_SPACE)
reiserfs_warning(sb, "reiserfs-5092",
** item.
*/
p_le_ih = PATH_PITEM_HEAD(s_cut_balance.tb_path);
- if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(p_le_ih)) {
+ if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(p_le_ih)) {
if (c_mode == M_DELETE &&
(le_ih_k_offset(p_le_ih) & (sb->s_blocksize - 1)) ==
1) {
// FIXME: this is to keep 3.5 happy
- REISERFS_I(p_s_inode)->i_first_direct_byte = U32_MAX;
+ REISERFS_I(inode)->i_first_direct_byte = U32_MAX;
quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
} else {
quota_cut_bytes = 0;
** unmap and invalidate it
*/
unmap_buffers(page, tail_pos);
- REISERFS_I(p_s_inode)->i_flags &= ~i_pack_on_close_mask;
+ REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask;
}
#ifdef REISERQUOTA_DEBUG
- reiserfs_debug(p_s_inode->i_sb, REISERFS_DEBUG_CODE,
+ reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
"reiserquota cut_from_item(): freeing %u id=%u type=%c",
- quota_cut_bytes, p_s_inode->i_uid, '?');
+ quota_cut_bytes, inode->i_uid, '?');
#endif
- DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ DQUOT_FREE_SPACE_NODIRTY(inode, quota_cut_bytes);
return n_ret_value;
}
/* Truncate file to the new size. Note, this must be called with a transaction
already started */
-int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p_s_inode, /* ->i_size contains new
- size */
+int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
+ struct inode *inode, /* ->i_size contains new size */
struct page *page, /* up to date for last block */
int update_timestamps /* when it is called by
file_release to convert
BUG_ON(!th->t_trans_id);
if (!
- (S_ISREG(p_s_inode->i_mode) || S_ISDIR(p_s_inode->i_mode)
- || S_ISLNK(p_s_inode->i_mode)))
+ (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
+ || S_ISLNK(inode->i_mode)))
return 0;
- if (S_ISDIR(p_s_inode->i_mode)) {
+ if (S_ISDIR(inode->i_mode)) {
// deletion of directory - no need to update timestamps
- truncate_directory(th, p_s_inode);
+ truncate_directory(th, inode);
return 0;
}
/* Get new file size. */
- n_new_file_size = p_s_inode->i_size;
+ n_new_file_size = inode->i_size;
// FIXME: note, that key type is unimportant here
- make_cpu_key(&s_item_key, p_s_inode, max_reiserfs_offset(p_s_inode),
+ make_cpu_key(&s_item_key, inode, max_reiserfs_offset(inode),
TYPE_DIRECT, 3);
retval =
- search_for_position_by_key(p_s_inode->i_sb, &s_item_key,
+ search_for_position_by_key(inode->i_sb, &s_item_key,
&s_search_path);
if (retval == IO_ERROR) {
- reiserfs_error(p_s_inode->i_sb, "vs-5657",
+ reiserfs_error(inode->i_sb, "vs-5657",
"i/o failure occurred trying to truncate %K",
&s_item_key);
err = -EIO;
goto out;
}
if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) {
- reiserfs_error(p_s_inode->i_sb, "PAP-5660",
+ reiserfs_error(inode->i_sb, "PAP-5660",
"wrong result %d of search for %K", retval,
&s_item_key);
else {
loff_t offset = le_ih_k_offset(p_le_ih);
int bytes =
- op_bytes_number(p_le_ih, p_s_inode->i_sb->s_blocksize);
+ op_bytes_number(p_le_ih, inode->i_sb->s_blocksize);
/* this may mismatch with real file size: if last direct item
had no padding zeros and last unformatted node had no free
/* Cut or delete file item. */
n_deleted =
reiserfs_cut_from_item(th, &s_search_path, &s_item_key,
- p_s_inode, page, n_new_file_size);
+ inode, page, n_new_file_size);
if (n_deleted < 0) {
- reiserfs_warning(p_s_inode->i_sb, "vs-5665",
+ reiserfs_warning(inode->i_sb, "vs-5665",
"reiserfs_cut_from_item failed");
reiserfs_check_path(&s_search_path);
return 0;
pathrelse(&s_search_path);
if (update_timestamps) {
- p_s_inode->i_mtime = p_s_inode->i_ctime =
- CURRENT_TIME_SEC;
+ inode->i_mtime = CURRENT_TIME_SEC;
+ inode->i_ctime = CURRENT_TIME_SEC;
}
- reiserfs_update_sd(th, p_s_inode);
+ reiserfs_update_sd(th, inode);
- err = journal_end(th, p_s_inode->i_sb, orig_len_alloc);
+ err = journal_end(th, inode->i_sb, orig_len_alloc);
if (err)
goto out;
- err = journal_begin(th, p_s_inode->i_sb,
+ err = journal_begin(th, inode->i_sb,
JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD + JOURNAL_PER_BALANCE_CNT * 4) ;
if (err)
goto out;
- reiserfs_update_inode_transaction(p_s_inode);
+ reiserfs_update_inode_transaction(inode);
}
} while (n_file_size > ROUND_UP(n_new_file_size) &&
- search_for_position_by_key(p_s_inode->i_sb, &s_item_key,
+ search_for_position_by_key(inode->i_sb, &s_item_key,
&s_search_path) == POSITION_FOUND);
RFALSE(n_file_size > ROUND_UP(n_new_file_size),
update_and_out:
if (update_timestamps) {
// this is truncate, not file closing
- p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_mtime = CURRENT_TIME_SEC;
+ inode->i_ctime = CURRENT_TIME_SEC;
}
- reiserfs_update_sd(th, p_s_inode);
+ reiserfs_update_sd(th, inode);
out:
pathrelse(&s_search_path);
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 treepath *p_s_path, /* path to the indirect item. */
+int indirect2direct(struct reiserfs_transaction_handle *th,
+ struct inode *inode, struct page *page,
+ struct treepath *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. */
loff_t n_new_file_size, /* New file size. */
char *p_c_mode)
{
- struct super_block *sb = p_s_inode->i_sb;
+ struct super_block *sb = inode->i_sb;
struct item_head s_ih;
unsigned long n_block_size = sb->s_blocksize;
char *tail;
copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
tail_len = (n_new_file_size & (n_block_size - 1));
- if (get_inode_sd_version(p_s_inode) == STAT_DATA_V2)
+ if (get_inode_sd_version(inode) == STAT_DATA_V2)
round_tail_len = ROUND_UP(tail_len);
else
round_tail_len = tail_len;
}
/* 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 */ );
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, p_s_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
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
*p_c_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;
}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff