From 7c6640d26459b059d1f6854907351e90070e643e Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Sat, 5 Jan 2013 16:53:04 +0100
Subject: [PATCH 086/482] * grub-core/fs/nilfs2.c
(-grub_nilfs2_palloc_groups_per_desc_block): Rename to ...
(grub_nilfs2_palloc_log_groups_per_desc_block): ... this. Return log of
groups_per_block. All users updated.
---
ChangeLog | 7 +++++++
grub-core/fs/nilfs2.c | 20 ++++++++++++--------
2 files changed, 19 insertions(+), 8 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index f15e098..ea191b3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2013-01-05 Vladimir Serbinenko <phcoder@gmail.com>
+ * grub-core/fs/nilfs2.c (-grub_nilfs2_palloc_groups_per_desc_block):
+ Rename to ...
+ (grub_nilfs2_palloc_log_groups_per_desc_block): ... this. Return log
+ of groups_per_block. All users updated.
+
+2013-01-05 Vladimir Serbinenko <phcoder@gmail.com>
+
* grub-core/disk/diskfilter.c (grub_diskfilter_write): Call
grub_error properly.
* grub-core/disk/ieee1275/nand.c (grub_nand_write): Likewise.
diff --git a/grub-core/fs/nilfs2.c b/grub-core/fs/nilfs2.c
index f36c513..5b34486 100644
--- a/grub-core/fs/nilfs2.c
+++ b/grub-core/fs/nilfs2.c
@@ -214,6 +214,8 @@ struct grub_nilfs2_palloc_group_desc
grub_uint32_t pg_nfrees;
};
+#define LOG_SIZE_GROUP_DESC 2
+
#define LOG_NILFS_DAT_ENTRY_SIZE 5
struct grub_nilfs2_dat_entry
{
@@ -311,10 +313,12 @@ grub_nilfs2_palloc_group (struct grub_nilfs2_data *data,
}
static inline grub_uint32_t
-grub_nilfs2_palloc_groups_per_desc_block (struct grub_nilfs2_data *data)
+grub_nilfs2_palloc_log_groups_per_desc_block (struct grub_nilfs2_data *data)
{
- return NILFS2_BLOCK_SIZE (data) /
- sizeof (struct grub_nilfs2_palloc_group_desc);
+ return LOG2_BLOCK_SIZE (data) - LOG_SIZE_GROUP_DESC;
+
+ COMPILE_TIME_ASSERT (sizeof (struct grub_nilfs2_palloc_group_desc)
+ == (1 << LOG_SIZE_GROUP_DESC));
}
static inline grub_uint32_t
@@ -338,8 +342,8 @@ static inline grub_uint32_t
grub_nilfs2_blocks_per_desc_block_log (struct grub_nilfs2_data *data,
unsigned long log_entry_size)
{
- return grub_nilfs2_palloc_groups_per_desc_block (data) *
- grub_nilfs2_blocks_per_group_log (data, log_entry_size) + 1;
+ return(grub_nilfs2_blocks_per_group_log (data, log_entry_size)
+ << grub_nilfs2_palloc_log_groups_per_desc_block (data)) + 1;
}
static inline grub_uint32_t
@@ -348,7 +352,7 @@ grub_nilfs2_palloc_desc_block_offset_log (struct grub_nilfs2_data *data,
unsigned long log_entry_size)
{
grub_uint32_t desc_block =
- group / grub_nilfs2_palloc_groups_per_desc_block (data);
+ group >> grub_nilfs2_palloc_log_groups_per_desc_block (data);
return desc_block * grub_nilfs2_blocks_per_desc_block_log (data,
log_entry_size);
}
@@ -358,8 +362,8 @@ grub_nilfs2_palloc_bitmap_block_offset (struct grub_nilfs2_data *data,
unsigned long group,
unsigned long log_entry_size)
{
- unsigned long desc_offset = group %
- grub_nilfs2_palloc_groups_per_desc_block (data);
+ unsigned long desc_offset = group
+ & ((1 << grub_nilfs2_palloc_log_groups_per_desc_block (data)) - 1);
return grub_nilfs2_palloc_desc_block_offset_log (data, group, log_entry_size)
+ 1
--
1.8.2.1