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From 3ba196532002293027a6a3e96f8eb1960c70e00c Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Sat, 5 Jan 2013 16:53:04 +0100
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Subject: [PATCH 085/364] * grub-core/fs/nilfs2.c
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(-grub_nilfs2_palloc_groups_per_desc_block): Rename to ...
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(grub_nilfs2_palloc_log_groups_per_desc_block): ... this. Return log of
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groups_per_block. All users updated.
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---
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ChangeLog | 7 +++++++
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grub-core/fs/nilfs2.c | 20 ++++++++++++--------
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2 files changed, 19 insertions(+), 8 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index f15e098..ea191b3 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,12 @@
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2013-01-05 Vladimir Serbinenko <phcoder@gmail.com>
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+ * grub-core/fs/nilfs2.c (-grub_nilfs2_palloc_groups_per_desc_block):
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+ Rename to ...
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+ (grub_nilfs2_palloc_log_groups_per_desc_block): ... this. Return log
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+ of groups_per_block. All users updated.
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+
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+2013-01-05 Vladimir Serbinenko <phcoder@gmail.com>
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+
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* grub-core/disk/diskfilter.c (grub_diskfilter_write): Call
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grub_error properly.
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* grub-core/disk/ieee1275/nand.c (grub_nand_write): Likewise.
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diff --git a/grub-core/fs/nilfs2.c b/grub-core/fs/nilfs2.c
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index f36c513..5b34486 100644
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--- a/grub-core/fs/nilfs2.c
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+++ b/grub-core/fs/nilfs2.c
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@@ -214,6 +214,8 @@ struct grub_nilfs2_palloc_group_desc
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grub_uint32_t pg_nfrees;
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};
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+#define LOG_SIZE_GROUP_DESC 2
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+
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#define LOG_NILFS_DAT_ENTRY_SIZE 5
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struct grub_nilfs2_dat_entry
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{
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@@ -311,10 +313,12 @@ grub_nilfs2_palloc_group (struct grub_nilfs2_data *data,
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}
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static inline grub_uint32_t
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-grub_nilfs2_palloc_groups_per_desc_block (struct grub_nilfs2_data *data)
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+grub_nilfs2_palloc_log_groups_per_desc_block (struct grub_nilfs2_data *data)
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{
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- return NILFS2_BLOCK_SIZE (data) /
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- sizeof (struct grub_nilfs2_palloc_group_desc);
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+ return LOG2_BLOCK_SIZE (data) - LOG_SIZE_GROUP_DESC;
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+
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+ COMPILE_TIME_ASSERT (sizeof (struct grub_nilfs2_palloc_group_desc)
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+ == (1 << LOG_SIZE_GROUP_DESC));
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}
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static inline grub_uint32_t
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@@ -338,8 +342,8 @@ static inline grub_uint32_t
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grub_nilfs2_blocks_per_desc_block_log (struct grub_nilfs2_data *data,
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unsigned long log_entry_size)
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{
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- return grub_nilfs2_palloc_groups_per_desc_block (data) *
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- grub_nilfs2_blocks_per_group_log (data, log_entry_size) + 1;
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+ return(grub_nilfs2_blocks_per_group_log (data, log_entry_size)
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+ << grub_nilfs2_palloc_log_groups_per_desc_block (data)) + 1;
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}
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static inline grub_uint32_t
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@@ -348,7 +352,7 @@ grub_nilfs2_palloc_desc_block_offset_log (struct grub_nilfs2_data *data,
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unsigned long log_entry_size)
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{
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grub_uint32_t desc_block =
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- group / grub_nilfs2_palloc_groups_per_desc_block (data);
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+ group >> grub_nilfs2_palloc_log_groups_per_desc_block (data);
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return desc_block * grub_nilfs2_blocks_per_desc_block_log (data,
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log_entry_size);
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}
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@@ -358,8 +362,8 @@ grub_nilfs2_palloc_bitmap_block_offset (struct grub_nilfs2_data *data,
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unsigned long group,
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unsigned long log_entry_size)
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{
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- unsigned long desc_offset = group %
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- grub_nilfs2_palloc_groups_per_desc_block (data);
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+ unsigned long desc_offset = group
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+ & ((1 << grub_nilfs2_palloc_log_groups_per_desc_block (data)) - 1);
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return grub_nilfs2_palloc_desc_block_offset_log (data, group, log_entry_size)
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+ 1
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--
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1.8.1.4
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