aboutsummaryrefslogtreecommitdiff
path: root/fs/reiserfs/fix_node.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/reiserfs/fix_node.c')
-rw-r--r--fs/reiserfs/fix_node.c169
1 files changed, 84 insertions, 85 deletions
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 5236a8829e3..d97a55574ba 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -780,9 +780,9 @@ static void free_buffers_in_tb(struct tree_balance *tb)
/* The function is NOT SCHEDULE-SAFE! */
static int get_empty_nodes(struct tree_balance *tb, int n_h)
{
- struct buffer_head *p_s_new_bh,
- *p_s_Sh = PATH_H_PBUFFER(tb->tb_path, n_h);
- b_blocknr_t *p_n_blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
+ struct buffer_head *new_bh,
+ *Sh = PATH_H_PBUFFER(tb->tb_path, n_h);
+ b_blocknr_t *blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
int n_counter, n_number_of_freeblk, n_amount_needed, /* number of needed empty blocks */
n_retval = CARRY_ON;
struct super_block *sb = tb->tb_sb;
@@ -810,8 +810,8 @@ static int get_empty_nodes(struct tree_balance *tb, int n_h)
1) : 0;
/* Allocate missing empty blocks. */
- /* if p_s_Sh == 0 then we are getting a new root */
- n_amount_needed = (p_s_Sh) ? (tb->blknum[n_h] - 1) : 1;
+ /* if Sh == 0 then we are getting a new root */
+ n_amount_needed = (Sh) ? (tb->blknum[n_h] - 1) : 1;
/* Amount_needed = the amount that we need more than the amount that we have. */
if (n_amount_needed > n_number_of_freeblk)
n_amount_needed -= n_number_of_freeblk;
@@ -824,25 +824,25 @@ static int get_empty_nodes(struct tree_balance *tb, int n_h)
return NO_DISK_SPACE;
/* for each blocknumber we just got, get a buffer and stick it on FEB */
- for (p_n_blocknr = a_n_blocknrs, n_counter = 0;
- n_counter < n_amount_needed; p_n_blocknr++, n_counter++) {
+ for (blocknr = a_n_blocknrs, n_counter = 0;
+ n_counter < n_amount_needed; blocknr++, n_counter++) {
- RFALSE(!*p_n_blocknr,
+ RFALSE(!*blocknr,
"PAP-8135: reiserfs_new_blocknrs failed when got new blocks");
- p_s_new_bh = sb_getblk(sb, *p_n_blocknr);
- RFALSE(buffer_dirty(p_s_new_bh) ||
- buffer_journaled(p_s_new_bh) ||
- buffer_journal_dirty(p_s_new_bh),
+ new_bh = sb_getblk(sb, *blocknr);
+ RFALSE(buffer_dirty(new_bh) ||
+ buffer_journaled(new_bh) ||
+ buffer_journal_dirty(new_bh),
"PAP-8140: journlaled or dirty buffer %b for the new block",
- p_s_new_bh);
+ new_bh);
/* Put empty buffers into the array. */
RFALSE(tb->FEB[tb->cur_blknum],
"PAP-8141: busy slot for new buffer");
- set_buffer_journal_new(p_s_new_bh);
- tb->FEB[tb->cur_blknum++] = p_s_new_bh;
+ set_buffer_journal_new(new_bh);
+ tb->FEB[tb->cur_blknum++] = new_bh;
}
if (n_retval == CARRY_ON && FILESYSTEM_CHANGED_TB(tb))
@@ -898,7 +898,7 @@ static int get_rfree(struct tree_balance *tb, int h)
/* Check whether left neighbor is in memory. */
static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
{
- struct buffer_head *p_s_father, *left;
+ struct buffer_head *father, *left;
struct super_block *sb = tb->tb_sb;
b_blocknr_t n_left_neighbor_blocknr;
int n_left_neighbor_position;
@@ -908,18 +908,18 @@ static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
return 0;
/* Calculate father of the node to be balanced. */
- p_s_father = PATH_H_PBUFFER(tb->tb_path, n_h + 1);
+ father = PATH_H_PBUFFER(tb->tb_path, n_h + 1);
- RFALSE(!p_s_father ||
- !B_IS_IN_TREE(p_s_father) ||
+ RFALSE(!father ||
+ !B_IS_IN_TREE(father) ||
!B_IS_IN_TREE(tb->FL[n_h]) ||
- !buffer_uptodate(p_s_father) ||
+ !buffer_uptodate(father) ||
!buffer_uptodate(tb->FL[n_h]),
"vs-8165: F[h] (%b) or FL[h] (%b) is invalid",
- p_s_father, tb->FL[n_h]);
+ father, tb->FL[n_h]);
/* Get position of the pointer to the left neighbor into the left father. */
- n_left_neighbor_position = (p_s_father == tb->FL[n_h]) ?
+ n_left_neighbor_position = (father == tb->FL[n_h]) ?
tb->lkey[n_h] : B_NR_ITEMS(tb->FL[n_h]);
/* Get left neighbor block number. */
n_left_neighbor_blocknr =
@@ -940,10 +940,10 @@ static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
#define LEFT_PARENTS 'l'
#define RIGHT_PARENTS 'r'
-static void decrement_key(struct cpu_key *p_s_key)
+static void decrement_key(struct cpu_key *key)
{
// call item specific function for this key
- item_ops[cpu_key_k_type(p_s_key)]->decrement_key(p_s_key);
+ item_ops[cpu_key_k_type(key)]->decrement_key(key);
}
/* Calculate far left/right parent of the left/right neighbor of the current node, that
@@ -956,17 +956,17 @@ static void decrement_key(struct cpu_key *p_s_key)
*/
static int get_far_parent(struct tree_balance *tb,
int n_h,
- struct buffer_head **pp_s_father,
- struct buffer_head **pp_s_com_father, char c_lr_par)
+ struct buffer_head **pfather,
+ struct buffer_head **pcom_father, char c_lr_par)
{
- struct buffer_head *p_s_parent;
+ struct buffer_head *parent;
INITIALIZE_PATH(s_path_to_neighbor_father);
- struct treepath *p_s_path = tb->tb_path;
+ struct treepath *path = tb->tb_path;
struct cpu_key s_lr_father_key;
int n_counter,
n_position = INT_MAX,
n_first_last_position = 0,
- n_path_offset = PATH_H_PATH_OFFSET(p_s_path, n_h);
+ n_path_offset = PATH_H_PATH_OFFSET(path, n_h);
/* Starting from F[n_h] go upwards in the tree, and look for the common
ancestor of F[n_h], and its neighbor l/r, that should be obtained. */
@@ -979,25 +979,25 @@ static int get_far_parent(struct tree_balance *tb,
for (; n_counter > FIRST_PATH_ELEMENT_OFFSET; n_counter--) {
/* Check whether parent of the current buffer in the path is really parent in the tree. */
if (!B_IS_IN_TREE
- (p_s_parent = PATH_OFFSET_PBUFFER(p_s_path, n_counter - 1)))
+ (parent = PATH_OFFSET_PBUFFER(path, n_counter - 1)))
return REPEAT_SEARCH;
/* Check whether position in the parent is correct. */
if ((n_position =
- PATH_OFFSET_POSITION(p_s_path,
+ PATH_OFFSET_POSITION(path,
n_counter - 1)) >
- B_NR_ITEMS(p_s_parent))
+ B_NR_ITEMS(parent))
return REPEAT_SEARCH;
/* Check whether parent at the path really points to the child. */
- if (B_N_CHILD_NUM(p_s_parent, n_position) !=
- PATH_OFFSET_PBUFFER(p_s_path, n_counter)->b_blocknr)
+ if (B_N_CHILD_NUM(parent, n_position) !=
+ PATH_OFFSET_PBUFFER(path, n_counter)->b_blocknr)
return REPEAT_SEARCH;
/* Return delimiting key if position in the parent is not equal to first/last one. */
if (c_lr_par == RIGHT_PARENTS)
- n_first_last_position = B_NR_ITEMS(p_s_parent);
+ n_first_last_position = B_NR_ITEMS(parent);
if (n_position != n_first_last_position) {
- *pp_s_com_father = p_s_parent;
- get_bh(*pp_s_com_father);
- /*(*pp_s_com_father = p_s_parent)->b_count++; */
+ *pcom_father = parent;
+ get_bh(*pcom_father);
+ /*(*pcom_father = parent)->b_count++; */
break;
}
}
@@ -1009,22 +1009,22 @@ static int get_far_parent(struct tree_balance *tb,
(tb->tb_path,
FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
SB_ROOT_BLOCK(tb->tb_sb)) {
- *pp_s_father = *pp_s_com_father = NULL;
+ *pfather = *pcom_father = NULL;
return CARRY_ON;
}
return REPEAT_SEARCH;
}
- RFALSE(B_LEVEL(*pp_s_com_father) <= DISK_LEAF_NODE_LEVEL,
+ RFALSE(B_LEVEL(*pcom_father) <= DISK_LEAF_NODE_LEVEL,
"PAP-8185: (%b %z) level too small",
- *pp_s_com_father, *pp_s_com_father);
+ *pcom_father, *pcom_father);
/* Check whether the common parent is locked. */
- if (buffer_locked(*pp_s_com_father)) {
- __wait_on_buffer(*pp_s_com_father);
+ if (buffer_locked(*pcom_father)) {
+ __wait_on_buffer(*pcom_father);
if (FILESYSTEM_CHANGED_TB(tb)) {
- brelse(*pp_s_com_father);
+ brelse(*pcom_father);
return REPEAT_SEARCH;
}
}
@@ -1034,7 +1034,7 @@ static int get_far_parent(struct tree_balance *tb,
/* Form key to get parent of the left/right neighbor. */
le_key2cpu_key(&s_lr_father_key,
- B_N_PDELIM_KEY(*pp_s_com_father,
+ B_N_PDELIM_KEY(*pcom_father,
(c_lr_par ==
LEFT_PARENTS) ? (tb->lkey[n_h - 1] =
n_position -
@@ -1053,14 +1053,14 @@ static int get_far_parent(struct tree_balance *tb,
if (FILESYSTEM_CHANGED_TB(tb)) {
pathrelse(&s_path_to_neighbor_father);
- brelse(*pp_s_com_father);
+ brelse(*pcom_father);
return REPEAT_SEARCH;
}
- *pp_s_father = PATH_PLAST_BUFFER(&s_path_to_neighbor_father);
+ *pfather = PATH_PLAST_BUFFER(&s_path_to_neighbor_father);
- RFALSE(B_LEVEL(*pp_s_father) != n_h + 1,
- "PAP-8190: (%b %z) level too small", *pp_s_father, *pp_s_father);
+ RFALSE(B_LEVEL(*pfather) != n_h + 1,
+ "PAP-8190: (%b %z) level too small", *pfather, *pfather);
RFALSE(s_path_to_neighbor_father.path_length <
FIRST_PATH_ELEMENT_OFFSET, "PAP-8192: path length is too small");
@@ -1078,11 +1078,11 @@ static int get_far_parent(struct tree_balance *tb,
*/
static int get_parents(struct tree_balance *tb, int n_h)
{
- struct treepath *p_s_path = tb->tb_path;
+ struct treepath *path = tb->tb_path;
int n_position,
n_ret_value,
n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
- struct buffer_head *p_s_curf, *p_s_curcf;
+ struct buffer_head *curf, *curcf;
/* Current node is the root of the tree or will be root of the tree */
if (n_path_offset <= FIRST_PATH_ELEMENT_OFFSET) {
@@ -1100,66 +1100,65 @@ static int get_parents(struct tree_balance *tb, int n_h)
}
/* Get parent FL[n_path_offset] of L[n_path_offset]. */
- if ((n_position = PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1))) {
+ n_position = PATH_OFFSET_POSITION(path, n_path_offset - 1);
+ if (n_position) {
/* Current node is not the first child of its parent. */
- /*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2; */
- p_s_curf = p_s_curcf =
- PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
- get_bh(p_s_curf);
- get_bh(p_s_curf);
+ curf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+ curcf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+ get_bh(curf);
+ get_bh(curf);
tb->lkey[n_h] = n_position - 1;
} else {
/* Calculate current parent of L[n_path_offset], which is the left neighbor of the current node.
Calculate current common parent of L[n_path_offset] and the current node. Note that
CFL[n_path_offset] not equal FL[n_path_offset] and CFL[n_path_offset] not equal F[n_path_offset].
Calculate lkey[n_path_offset]. */
- if ((n_ret_value = get_far_parent(tb, n_h + 1, &p_s_curf,
- &p_s_curcf,
+ if ((n_ret_value = get_far_parent(tb, n_h + 1, &curf,
+ &curcf,
LEFT_PARENTS)) != CARRY_ON)
return n_ret_value;
}
brelse(tb->FL[n_h]);
- tb->FL[n_h] = p_s_curf; /* New initialization of FL[n_h]. */
+ tb->FL[n_h] = curf; /* New initialization of FL[n_h]. */
brelse(tb->CFL[n_h]);
- tb->CFL[n_h] = p_s_curcf; /* New initialization of CFL[n_h]. */
+ tb->CFL[n_h] = curcf; /* New initialization of CFL[n_h]. */
- RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
- (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
- "PAP-8195: FL (%b) or CFL (%b) is invalid", p_s_curf, p_s_curcf);
+ RFALSE((curf && !B_IS_IN_TREE(curf)) ||
+ (curcf && !B_IS_IN_TREE(curcf)),
+ "PAP-8195: FL (%b) or CFL (%b) is invalid", curf, curcf);
/* Get parent FR[n_h] of R[n_h]. */
/* Current node is the last child of F[n_h]. FR[n_h] != F[n_h]. */
- if (n_position == B_NR_ITEMS(PATH_H_PBUFFER(p_s_path, n_h + 1))) {
+ if (n_position == B_NR_ITEMS(PATH_H_PBUFFER(path, n_h + 1))) {
/* Calculate current parent of R[n_h], which is the right neighbor of F[n_h].
Calculate current common parent of R[n_h] and current node. Note that CFR[n_h]
not equal FR[n_path_offset] and CFR[n_h] not equal F[n_h]. */
if ((n_ret_value =
- get_far_parent(tb, n_h + 1, &p_s_curf, &p_s_curcf,
+ get_far_parent(tb, n_h + 1, &curf, &curcf,
RIGHT_PARENTS)) != CARRY_ON)
return n_ret_value;
} else {
/* Current node is not the last child of its parent F[n_h]. */
- /*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2; */
- p_s_curf = p_s_curcf =
- PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
- get_bh(p_s_curf);
- get_bh(p_s_curf);
+ curf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+ curcf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+ get_bh(curf);
+ get_bh(curf);
tb->rkey[n_h] = n_position;
}
brelse(tb->FR[n_h]);
/* New initialization of FR[n_path_offset]. */
- tb->FR[n_h] = p_s_curf;
+ tb->FR[n_h] = curf;
brelse(tb->CFR[n_h]);
/* New initialization of CFR[n_path_offset]. */
- tb->CFR[n_h] = p_s_curcf;
+ tb->CFR[n_h] = curcf;
- RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
- (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
- "PAP-8205: FR (%b) or CFR (%b) is invalid", p_s_curf, p_s_curcf);
+ RFALSE((curf && !B_IS_IN_TREE(curf)) ||
+ (curcf && !B_IS_IN_TREE(curcf)),
+ "PAP-8205: FR (%b) or CFR (%b) is invalid", curf, curcf);
return CARRY_ON;
}
@@ -1893,7 +1892,7 @@ static int check_balance(int mode,
static int get_direct_parent(struct tree_balance *tb, int n_h)
{
struct buffer_head *bh;
- struct treepath *p_s_path = tb->tb_path;
+ struct treepath *path = tb->tb_path;
int n_position,
n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
@@ -1903,27 +1902,27 @@ static int get_direct_parent(struct tree_balance *tb, int n_h)
RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET - 1,
"PAP-8260: invalid offset in the path");
- if (PATH_OFFSET_PBUFFER(p_s_path, FIRST_PATH_ELEMENT_OFFSET)->
+ if (PATH_OFFSET_PBUFFER(path, FIRST_PATH_ELEMENT_OFFSET)->
b_blocknr == SB_ROOT_BLOCK(tb->tb_sb)) {
/* Root is not changed. */
- PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1) = NULL;
- PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1) = 0;
+ PATH_OFFSET_PBUFFER(path, n_path_offset - 1) = NULL;
+ PATH_OFFSET_POSITION(path, n_path_offset - 1) = 0;
return CARRY_ON;
}
return REPEAT_SEARCH; /* Root is changed and we must recalculate the path. */
}
if (!B_IS_IN_TREE
- (bh = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1)))
+ (bh = PATH_OFFSET_PBUFFER(path, n_path_offset - 1)))
return REPEAT_SEARCH; /* Parent in the path is not in the tree. */
if ((n_position =
- PATH_OFFSET_POSITION(p_s_path,
+ PATH_OFFSET_POSITION(path,
n_path_offset - 1)) > B_NR_ITEMS(bh))
return REPEAT_SEARCH;
if (B_N_CHILD_NUM(bh, n_position) !=
- PATH_OFFSET_PBUFFER(p_s_path, n_path_offset)->b_blocknr)
+ PATH_OFFSET_PBUFFER(path, n_path_offset)->b_blocknr)
/* Parent in the path is not parent of the current node in the tree. */
return REPEAT_SEARCH;
@@ -2319,7 +2318,7 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *tb)
*/
int fix_nodes(int n_op_mode, struct tree_balance *tb,
- struct item_head *p_s_ins_ih, const void *data)
+ struct item_head *ins_ih, const void *data)
{
int n_ret_value, n_h, n_item_num = PATH_LAST_POSITION(tb->tb_path);
int n_pos_in_item;
@@ -2405,7 +2404,7 @@ int fix_nodes(int n_op_mode, struct tree_balance *tb,
goto repeat;
n_ret_value = check_balance(n_op_mode, tb, n_h, n_item_num,
- n_pos_in_item, p_s_ins_ih, data);
+ n_pos_in_item, ins_ih, data);
if (n_ret_value != CARRY_ON) {
if (n_ret_value == NO_BALANCING_NEEDED) {
/* No balancing for higher levels needed. */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-30 00:00:32 +0000