GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-03-17 12:34:01 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

f2fs: fix to caclulate required free section correctly

Browse source 
When calculating required free section during file defragmenting, we
should skip holes in file, otherwise we will probably fail to defrag
sparse file with large size.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-01-10 18:18:51 +08:00 • committed by Jaegeuk Kim
parent f1d2564a7c
commit 25a912e51a
1 changed files with 10 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
fs/f2fs/file.c
View file

@ -2125,10 +2125,12 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
continue;
}
if (blk_end && blk_end != map.m_pblk) {
if (blk_end && blk_end != map.m_pblk)
fragmented = true;
break;
}
/* record total count of block that we're going to move */
total += map.m_len;
blk_end = map.m_pblk + map.m_len;
map.m_lblk += map.m_len;
@ -2137,10 +2139,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
if (!fragmented)
goto out;
map.m_lblk = pg_start;
map.m_len = pg_end - pg_start;
sec_num = (map.m_len + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
sec_num = (total + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
/*
* make sure there are enough free section for LFS allocation, this can
@ -2152,6 +2151,10 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
goto out;
}
map.m_lblk = pg_start;
map.m_len = pg_end - pg_start;
total = 0;
while (map.m_lblk < pg_end) {
pgoff_t idx;
int cnt = 0;