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authorJeff Mahoney <jeffm@suse.com>2014-04-23 10:00:56 -0400
committerJan Kara <jack@suse.cz>2014-05-07 19:05:57 +0200
commit4bf4de6bc45a6b1cfa6af6cf235480287c8784fb (patch)
treea0709839b090ddb808563dc254ccdde6699a0dd6 /fs/reiserfs/do_balan.c
parent0080e9f9d3ac717537dbd6db1fc8ef72ce0b9cc1 (diff)
reiserfs: balance_leaf refactor, format balance_leaf_insert_left
Reformat balance_leaf_insert_left to adhere to CodingStyle. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/reiserfs/do_balan.c')
-rw-r--r--fs/reiserfs/do_balan.c93
1 files changed, 50 insertions, 43 deletions
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index b7085b7e7524..cca685daf26d 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -293,59 +293,66 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
static void balance_leaf_insert_left(struct tree_balance *tb,
struct item_head *ih, const char *body)
{
- int ret_val;
+ int ret;
struct buffer_info bi;
int n = B_NR_ITEMS(tb->L[0]);
- if (tb->item_pos == tb->lnum[0] - 1 && tb->lbytes != -1) {
- /* part of new item falls into L[0] */
- int new_item_len;
- int version;
+ if (tb->item_pos == tb->lnum[0] - 1 && tb->lbytes != -1) {
+ /* part of new item falls into L[0] */
+ int new_item_len, shift;
+ int version;
- ret_val = leaf_shift_left(tb, tb->lnum[0] - 1, -1);
+ ret = leaf_shift_left(tb, tb->lnum[0] - 1, -1);
- /* Calculate item length to insert to S[0] */
- new_item_len = ih_item_len(ih) - tb->lbytes;
- /* Calculate and check item length to insert to L[0] */
- put_ih_item_len(ih, ih_item_len(ih) - new_item_len);
+ /* Calculate item length to insert to S[0] */
+ new_item_len = ih_item_len(ih) - tb->lbytes;
- RFALSE(ih_item_len(ih) <= 0,
- "PAP-12080: there is nothing to insert into L[0]: ih_item_len=%d",
- ih_item_len(ih));
+ /* Calculate and check item length to insert to L[0] */
+ put_ih_item_len(ih, ih_item_len(ih) - new_item_len);
- /* Insert new item into L[0] */
- buffer_info_init_left(tb, &bi);
- leaf_insert_into_buf(&bi,
- n + tb->item_pos - ret_val, ih, body,
- tb->zeroes_num > ih_item_len(ih) ? ih_item_len(ih) : tb->zeroes_num);
+ RFALSE(ih_item_len(ih) <= 0,
+ "PAP-12080: there is nothing to insert into L[0]: "
+ "ih_item_len=%d", ih_item_len(ih));
- version = ih_version(ih);
+ /* Insert new item into L[0] */
+ buffer_info_init_left(tb, &bi);
+ leaf_insert_into_buf(&bi, n + tb->item_pos - ret, ih, body,
+ min_t(int, tb->zeroes_num, ih_item_len(ih)));
- /* Calculate key component, item length and body to insert into S[0] */
- set_le_ih_k_offset(ih, le_ih_k_offset(ih) +
- (tb->lbytes << (is_indirect_le_ih(ih) ? tb->tb_sb->s_blocksize_bits - UNFM_P_SHIFT : 0)));
-
- put_ih_item_len(ih, new_item_len);
- if (tb->lbytes > tb->zeroes_num) {
- body += (tb->lbytes - tb->zeroes_num);
- tb->zeroes_num = 0;
- } else
- tb->zeroes_num -= tb->lbytes;
-
- RFALSE(ih_item_len(ih) <= 0,
- "PAP-12085: there is nothing to insert into S[0]: ih_item_len=%d",
- ih_item_len(ih));
- } else {
- /* new item in whole falls into L[0] */
- /* Shift lnum[0]-1 items to L[0] */
- ret_val = leaf_shift_left(tb, tb->lnum[0] - 1, tb->lbytes);
- /* Insert new item into L[0] */
- buffer_info_init_left(tb, &bi);
- leaf_insert_into_buf(&bi, n + tb->item_pos - ret_val, ih, body, tb->zeroes_num);
- tb->insert_size[0] = 0;
- tb->zeroes_num = 0;
- }
+ version = ih_version(ih);
+ /*
+ * Calculate key component, item length and body to
+ * insert into S[0]
+ */
+ shift = 0;
+ if (is_indirect_le_ih(ih))
+ shift = tb->tb_sb->s_blocksize_bits - UNFM_P_SHIFT;
+
+ add_le_ih_k_offset(ih, tb->lbytes << shift);
+
+ put_ih_item_len(ih, new_item_len);
+ if (tb->lbytes > tb->zeroes_num) {
+ body += (tb->lbytes - tb->zeroes_num);
+ tb->zeroes_num = 0;
+ } else
+ tb->zeroes_num -= tb->lbytes;
+
+ RFALSE(ih_item_len(ih) <= 0,
+ "PAP-12085: there is nothing to insert into S[0]: "
+ "ih_item_len=%d", ih_item_len(ih));
+ } else {
+ /* new item in whole falls into L[0] */
+ /* Shift lnum[0]-1 items to L[0] */
+ ret = leaf_shift_left(tb, tb->lnum[0] - 1, tb->lbytes);
+
+ /* Insert new item into L[0] */
+ buffer_info_init_left(tb, &bi);
+ leaf_insert_into_buf(&bi, n + tb->item_pos - ret, ih, body,
+ tb->zeroes_num);
+ tb->insert_size[0] = 0;
+ tb->zeroes_num = 0;
+ }
}
static void balance_leaf_paste_left(struct tree_balance *tb,