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-rw-r--r--fs/reiserfs/do_balan.c111
-rw-r--r--fs/reiserfs/lbalance.c5
-rw-r--r--fs/reiserfs/reiserfs.h9
3 files changed, 71 insertions, 54 deletions
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 54fdf19..4d5e529 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -286,12 +286,14 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
return 0;
}
-static void balance_leaf_insert_left(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+static unsigned int balance_leaf_insert_left(struct tree_balance *tb,
+ struct item_head *const ih,
+ const char * const body)
{
int ret;
struct buffer_info bi;
int n = B_NR_ITEMS(tb->L[0]);
+ unsigned body_shift_bytes = 0;
if (tb->item_pos == tb->lnum[0] - 1 && tb->lbytes != -1) {
/* part of new item falls into L[0] */
@@ -329,7 +331,7 @@ static void balance_leaf_insert_left(struct tree_balance *tb,
put_ih_item_len(ih, new_item_len);
if (tb->lbytes > tb->zeroes_num) {
- body += (tb->lbytes - tb->zeroes_num);
+ body_shift_bytes = tb->lbytes - tb->zeroes_num;
tb->zeroes_num = 0;
} else
tb->zeroes_num -= tb->lbytes;
@@ -349,11 +351,12 @@ static void balance_leaf_insert_left(struct tree_balance *tb,
tb->insert_size[0] = 0;
tb->zeroes_num = 0;
}
+ return body_shift_bytes;
}
static void balance_leaf_paste_left_shift_dirent(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
int n = B_NR_ITEMS(tb->L[0]);
struct buffer_info bi;
@@ -413,17 +416,18 @@ static void balance_leaf_paste_left_shift_dirent(struct tree_balance *tb,
tb->pos_in_item -= tb->lbytes;
}
-static void balance_leaf_paste_left_shift(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+static unsigned int balance_leaf_paste_left_shift(struct tree_balance *tb,
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
int n = B_NR_ITEMS(tb->L[0]);
struct buffer_info bi;
+ int body_shift_bytes = 0;
if (is_direntry_le_ih(item_head(tbS0, tb->item_pos))) {
balance_leaf_paste_left_shift_dirent(tb, ih, body);
- return;
+ return 0;
}
RFALSE(tb->lbytes <= 0,
@@ -497,7 +501,7 @@ static void balance_leaf_paste_left_shift(struct tree_balance *tb,
* insert_size[0]
*/
if (l_n > tb->zeroes_num) {
- body += (l_n - tb->zeroes_num);
+ body_shift_bytes = l_n - tb->zeroes_num;
tb->zeroes_num = 0;
} else
tb->zeroes_num -= l_n;
@@ -526,13 +530,14 @@ static void balance_leaf_paste_left_shift(struct tree_balance *tb,
*/
leaf_shift_left(tb, tb->lnum[0], tb->lbytes);
}
+ return body_shift_bytes;
}
/* appended item will be in L[0] in whole */
static void balance_leaf_paste_left_whole(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
int n = B_NR_ITEMS(tb->L[0]);
@@ -584,39 +589,44 @@ static void balance_leaf_paste_left_whole(struct tree_balance *tb,
tb->zeroes_num = 0;
}
-static void balance_leaf_paste_left(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+static unsigned int balance_leaf_paste_left(struct tree_balance *tb,
+ struct item_head * const ih,
+ const char * const body)
{
/* we must shift the part of the appended item */
if (tb->item_pos == tb->lnum[0] - 1 && tb->lbytes != -1)
- balance_leaf_paste_left_shift(tb, ih, body);
+ return balance_leaf_paste_left_shift(tb, ih, body);
else
balance_leaf_paste_left_whole(tb, ih, body);
+ return 0;
}
/* Shift lnum[0] items from S[0] to the left neighbor L[0] */
-static void balance_leaf_left(struct tree_balance *tb, struct item_head *ih,
- const char *body, int flag)
+static unsigned int balance_leaf_left(struct tree_balance *tb,
+ struct item_head * const ih,
+ const char * const body, int flag)
{
if (tb->lnum[0] <= 0)
- return;
+ return 0;
/* new item or it part falls to L[0], shift it too */
if (tb->item_pos < tb->lnum[0]) {
BUG_ON(flag != M_INSERT && flag != M_PASTE);
if (flag == M_INSERT)
- balance_leaf_insert_left(tb, ih, body);
+ return balance_leaf_insert_left(tb, ih, body);
else /* M_PASTE */
- balance_leaf_paste_left(tb, ih, body);
+ return balance_leaf_paste_left(tb, ih, body);
} else
/* new item doesn't fall into L[0] */
leaf_shift_left(tb, tb->lnum[0], tb->lbytes);
+ return 0;
}
static void balance_leaf_insert_right(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
@@ -704,7 +714,8 @@ static void balance_leaf_insert_right(struct tree_balance *tb,
static void balance_leaf_paste_right_shift_dirent(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
struct buffer_info bi;
@@ -754,7 +765,8 @@ static void balance_leaf_paste_right_shift_dirent(struct tree_balance *tb,
}
static void balance_leaf_paste_right_shift(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
int n_shift, n_rem, r_zeroes_number, version;
@@ -831,7 +843,8 @@ static void balance_leaf_paste_right_shift(struct tree_balance *tb,
}
static void balance_leaf_paste_right_whole(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
int n = B_NR_ITEMS(tbS0);
@@ -874,7 +887,8 @@ static void balance_leaf_paste_right_whole(struct tree_balance *tb,
}
static void balance_leaf_paste_right(struct tree_balance *tb,
- struct item_head *ih, const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
int n = B_NR_ITEMS(tbS0);
@@ -896,8 +910,9 @@ static void balance_leaf_paste_right(struct tree_balance *tb,
}
/* shift rnum[0] items from S[0] to the right neighbor R[0] */
-static void balance_leaf_right(struct tree_balance *tb, struct item_head *ih,
- const char *body, int flag)
+static void balance_leaf_right(struct tree_balance *tb,
+ struct item_head * const ih,
+ const char * const body, int flag)
{
if (tb->rnum[0] <= 0)
return;
@@ -911,8 +926,8 @@ static void balance_leaf_right(struct tree_balance *tb, struct item_head *ih,
}
static void balance_leaf_new_nodes_insert(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int i)
@@ -1003,8 +1018,8 @@ static void balance_leaf_new_nodes_insert(struct tree_balance *tb,
/* we append to directory item */
static void balance_leaf_new_nodes_paste_dirent(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int i)
@@ -1058,8 +1073,8 @@ static void balance_leaf_new_nodes_paste_dirent(struct tree_balance *tb,
}
static void balance_leaf_new_nodes_paste_shift(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int i)
@@ -1131,8 +1146,8 @@ static void balance_leaf_new_nodes_paste_shift(struct tree_balance *tb,
}
static void balance_leaf_new_nodes_paste_whole(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int i)
@@ -1184,8 +1199,8 @@ static void balance_leaf_new_nodes_paste_whole(struct tree_balance *tb,
}
static void balance_leaf_new_nodes_paste(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int i)
@@ -1214,8 +1229,8 @@ static void balance_leaf_new_nodes_paste(struct tree_balance *tb,
/* Fill new nodes that appear in place of S[0] */
static void balance_leaf_new_nodes(struct tree_balance *tb,
- struct item_head *ih,
- const char *body,
+ struct item_head * const ih,
+ const char * const body,
struct item_head *insert_key,
struct buffer_head **insert_ptr,
int flag)
@@ -1254,8 +1269,8 @@ static void balance_leaf_new_nodes(struct tree_balance *tb,
}
static void balance_leaf_finish_node_insert(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
struct buffer_info bi;
@@ -1271,8 +1286,8 @@ static void balance_leaf_finish_node_insert(struct tree_balance *tb,
}
static void balance_leaf_finish_node_paste_dirent(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
struct item_head *pasted = item_head(tbS0, tb->item_pos);
@@ -1305,8 +1320,8 @@ static void balance_leaf_finish_node_paste_dirent(struct tree_balance *tb,
}
static void balance_leaf_finish_node_paste(struct tree_balance *tb,
- struct item_head *ih,
- const char *body)
+ struct item_head * const ih,
+ const char * const body)
{
struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
struct buffer_info bi;
@@ -1349,8 +1364,8 @@ static void balance_leaf_finish_node_paste(struct tree_balance *tb,
* of the affected item which remains in S
*/
static void balance_leaf_finish_node(struct tree_balance *tb,
- struct item_head *ih,
- const char *body, int flag)
+ struct item_head * const ih,
+ const char * const body, int flag)
{
/* if we must insert or append into buffer S[0] */
if (0 <= tb->item_pos && tb->item_pos < tb->s0num) {
@@ -1402,7 +1417,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,
&& is_indirect_le_ih(item_head(tbS0, tb->item_pos)))
tb->pos_in_item *= UNFM_P_SIZE;
- balance_leaf_left(tb, ih, body, flag);
+ body += balance_leaf_left(tb, ih, body, flag);
/* tb->lnum[0] > 0 */
/* Calculate new item position */
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index d6744c8..3a74d15 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -899,8 +899,9 @@ void leaf_delete_items(struct buffer_info *cur_bi, int last_first,
/* insert item into the leaf node in position before */
void leaf_insert_into_buf(struct buffer_info *bi, int before,
- struct item_head *inserted_item_ih,
- const char *inserted_item_body, int zeros_number)
+ struct item_head * const inserted_item_ih,
+ const char * const inserted_item_body,
+ int zeros_number)
{
struct buffer_head *bh = bi->bi_bh;
int nr, free_space;
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index bf53888..735c2c2 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -3216,11 +3216,12 @@ int leaf_shift_right(struct tree_balance *tb, int shift_num, int shift_bytes);
void leaf_delete_items(struct buffer_info *cur_bi, int last_first, int first,
int del_num, int del_bytes);
void leaf_insert_into_buf(struct buffer_info *bi, int before,
- struct item_head *inserted_item_ih,
- const char *inserted_item_body, int zeros_number);
-void leaf_paste_in_buffer(struct buffer_info *bi, int pasted_item_num,
- int pos_in_item, int paste_size, const char *body,
+ struct item_head * const inserted_item_ih,
+ const char * const inserted_item_body,
int zeros_number);
+void leaf_paste_in_buffer(struct buffer_info *bi, int pasted_item_num,
+ int pos_in_item, int paste_size,
+ const char * const body, int zeros_number);
void leaf_cut_from_buffer(struct buffer_info *bi, int cut_item_num,
int pos_in_item, int cut_size);
void leaf_paste_entries(struct buffer_info *bi, int item_num, int before,
generated by cgit v0.10.2 at 2024-07-26 18:20:42 (GMT)