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f2fs: introduce __try_update_largest_extent

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This patch adds a new helper __try_update_largest_extent for cleanup.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2015-09-22 21:07:47 +08:00 committed by Jaegeuk Kim
parent 545fe4210d
commit 4abd3f5ac4
2 changed files with 12 additions and 9 deletions
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14
fs/f2fs/extent_cache.c
View File

@ -351,8 +351,7 @@ static struct extent_node *__try_merge_extent_node(struct f2fs_sb_info *sbi,
} }
if (en) { if (en) {
if (en->ei.len > et->largest.len) __try_update_largest_extent(et, en);
et->largest = en->ei;
et->cached_en = en; et->cached_en = en;
} }
return en; return en;
@ -389,8 +388,7 @@ static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi,
if (!en) if (!en)
return NULL; return NULL;
if (en->ei.len > et->largest.len) __try_update_largest_extent(et, en);
et->largest = en->ei;
et->cached_en = en; et->cached_en = en;
return en; return en;
} }
@ -476,12 +474,10 @@ static unsigned int f2fs_update_extent_tree_range(struct inode *inode,
: NULL; : NULL;
} }
if (parts) { if (parts)
if (en->ei.len > et->largest.len) __try_update_largest_extent(et, en);
et->largest = en->ei; else
} else {
__detach_extent_node(sbi, et, en); __detach_extent_node(sbi, et, en);
}
/* /*
* if original extent is split into zero or two parts, extent * if original extent is split into zero or two parts, extent

7
fs/f2fs/f2fs.h
View File

@ -492,6 +492,13 @@ static inline bool __is_front_mergeable(struct extent_info *cur,
return __is_extent_mergeable(cur, front); return __is_extent_mergeable(cur, front);
} }
static inline void __try_update_largest_extent(struct extent_tree *et,
struct extent_node *en)
{
if (en->ei.len > et->largest.len)
et->largest = en->ei;
}
struct f2fs_nm_info { struct f2fs_nm_info {
block_t nat_blkaddr; /* base disk address of NAT */ block_t nat_blkaddr; /* base disk address of NAT */
nid_t max_nid; /* maximum possible node ids */ nid_t max_nid; /* maximum possible node ids */