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Date: Mon, 01 Apr 2013 15:55:53 +0900
From: Jaegeuk Kim <jaegeuk.kim@...sung.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Jaegeuk Kim <jaegeuk.kim@...sung.com>,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net
Subject: [PATCH 2/9] f2fs: introduce TOTAL_SECS macro
Let's use a macro to get the total number of sections.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@...sung.com>
---
fs/f2fs/debug.c | 7 +++----
fs/f2fs/segment.c | 19 +++++++++----------
fs/f2fs/segment.h | 1 +
3 files changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 025b9e2..20b8794 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -106,7 +106,7 @@ static void update_sit_info(struct f2fs_sb_info *sbi)
}
}
mutex_unlock(&sit_i->sentry_lock);
- dist = sbi->total_sections * hblks_per_sec * hblks_per_sec / 100;
+ dist = TOTAL_SECS(sbi) * hblks_per_sec * hblks_per_sec / 100;
si->bimodal = bimodal / dist;
if (si->dirty_count)
si->avg_vblocks = total_vblocks / ndirty;
@@ -138,14 +138,13 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
si->base_mem += f2fs_bitmap_size(TOTAL_SEGS(sbi));
si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * TOTAL_SEGS(sbi);
if (sbi->segs_per_sec > 1)
- si->base_mem += sbi->total_sections *
- sizeof(struct sec_entry);
+ si->base_mem += TOTAL_SECS(sbi) * sizeof(struct sec_entry);
si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
/* build free segmap */
si->base_mem += sizeof(struct free_segmap_info);
si->base_mem += f2fs_bitmap_size(TOTAL_SEGS(sbi));
- si->base_mem += f2fs_bitmap_size(sbi->total_sections);
+ si->base_mem += f2fs_bitmap_size(TOTAL_SECS(sbi));
/* build curseg */
si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 1758149..179a13e 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -348,9 +348,8 @@ static void get_new_segment(struct f2fs_sb_info *sbi,
unsigned int *newseg, bool new_sec, int dir)
{
struct free_segmap_info *free_i = FREE_I(sbi);
- unsigned int total_secs = sbi->total_sections;
unsigned int segno, secno, zoneno;
- unsigned int total_zones = sbi->total_sections / sbi->secs_per_zone;
+ unsigned int total_zones = TOTAL_SECS(sbi) / sbi->secs_per_zone;
unsigned int hint = *newseg / sbi->segs_per_sec;
unsigned int old_zoneno = GET_ZONENO_FROM_SEGNO(sbi, *newseg);
unsigned int left_start = hint;
@@ -367,12 +366,12 @@ static void get_new_segment(struct f2fs_sb_info *sbi,
goto got_it;
}
find_other_zone:
- secno = find_next_zero_bit(free_i->free_secmap, total_secs, hint);
- if (secno >= total_secs) {
+ secno = find_next_zero_bit(free_i->free_secmap, TOTAL_SECS(sbi), hint);
+ if (secno >= TOTAL_SECS(sbi)) {
if (dir == ALLOC_RIGHT) {
secno = find_next_zero_bit(free_i->free_secmap,
- total_secs, 0);
- BUG_ON(secno >= total_secs);
+ TOTAL_SECS(sbi), 0);
+ BUG_ON(secno >= TOTAL_SECS(sbi));
} else {
go_left = 1;
left_start = hint - 1;
@@ -387,8 +386,8 @@ find_other_zone:
continue;
}
left_start = find_next_zero_bit(free_i->free_secmap,
- total_secs, 0);
- BUG_ON(left_start >= total_secs);
+ TOTAL_SECS(sbi), 0);
+ BUG_ON(left_start >= TOTAL_SECS(sbi));
break;
}
secno = left_start;
@@ -1390,7 +1389,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
}
if (sbi->segs_per_sec > 1) {
- sit_i->sec_entries = vzalloc(sbi->total_sections *
+ sit_i->sec_entries = vzalloc(TOTAL_SECS(sbi) *
sizeof(struct sec_entry));
if (!sit_i->sec_entries)
return -ENOMEM;
@@ -1441,7 +1440,7 @@ static int build_free_segmap(struct f2fs_sb_info *sbi)
if (!free_i->free_segmap)
return -ENOMEM;
- sec_bitmap_size = f2fs_bitmap_size(sbi->total_sections);
+ sec_bitmap_size = f2fs_bitmap_size(TOTAL_SECS(sbi));
free_i->free_secmap = kmalloc(sec_bitmap_size, GFP_KERNEL);
if (!free_i->free_secmap)
return -ENOMEM;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index c0d7740..fea9245 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -81,6 +81,7 @@
#define f2fs_bitmap_size(nr) \
(BITS_TO_LONGS(nr) * sizeof(unsigned long))
#define TOTAL_SEGS(sbi) (SM_I(sbi)->main_segments)
+#define TOTAL_SECS(sbi) (sbi->total_sections)
#define SECTOR_FROM_BLOCK(sbi, blk_addr) \
(blk_addr << ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
--
1.8.1.3.566.gaa39828
--
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