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authorChao Yu <chao2.yu@samsung.com>2015-01-28 17:48:42 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2015-02-11 17:04:38 -0800
commitcaf0047e7e1e60a7ad1d655d3b81b32e2dfb6095 (patch)
tree0d4725d944d54b437ac3fd7218794773197b1c2a /fs/f2fs/segment.h
parent88dd8934194f6d1db7f824c03d1eee169cb891b0 (diff)
downloadlinux-caf0047e7e1e60a7ad1d655d3b81b32e2dfb6095.tar.bz2
f2fs: merge flags in struct f2fs_sb_info
Currently, there are several variables with Boolean type as below: struct f2fs_sb_info { ... int s_dirty; bool need_fsck; bool s_closing; ... bool por_doing; ... } For this there are some issues: 1. there are some space of f2fs_sb_info is wasted due to aligning after Boolean type variables by compiler. 2. if we continuously add new flag into f2fs_sb_info, structure will be messed up. So in this patch, we try to: 1. switch s_dirty to Boolean type variable since it has two status 0/1. 2. merge s_dirty/need_fsck/s_closing/por_doing variables into s_flag. 3. introduce an enum type which can indicate different states of sbi. 4. use new introduced universal interfaces is_sbi_flag_set/{set,clear}_sbi_flag to operate flags for sbi. After that, above issues will be fixed. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.h')
-rw-r--r--fs/f2fs/segment.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 7f327c0ba4e3..421d5794b0c8 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -460,7 +460,7 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi, int freed)
int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
- if (unlikely(sbi->por_doing))
+ if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
return false;
return (free_sections(sbi) + freed) <= (node_secs + 2 * dent_secs +
@@ -599,13 +599,13 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
{
if (segno > TOTAL_SEGS(sbi) - 1)
- sbi->need_fsck = true;
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
}
static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
{
if (blk_addr < SEG0_BLKADDR(sbi) || blk_addr >= MAX_BLKADDR(sbi))
- sbi->need_fsck = true;
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
}
/*
@@ -616,11 +616,11 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
{
/* check segment usage */
if (GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg)
- sbi->need_fsck = true;
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
/* check boundary of a given segment number */
if (segno > TOTAL_SEGS(sbi) - 1)
- sbi->need_fsck = true;
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
}
#endif