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f2fs: speed up defragment on sparse file 

We have supported to get next page offset with valid mapping crossing
hole in f2fs_map_blocks, utilizing it to speed up defragment on sparse
file.

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 18:18:52 +08:00 committed by Jaegeuk Kim
parent c4020b2da4
commit f3d98e74fc
2 changed files with 11 additions and 6 deletions
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6
fs/f2fs/data.c
View File

@ -1017,8 +1017,12 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
*map->m_next_pgofs = pgofs + 1;
goto sync_out;
}
if (flag != F2FS_GET_BLOCK_FIEMAP)
if (flag != F2FS_GET_BLOCK_FIEMAP) {
/* for defragment case */
if (map->m_next_pgofs)
*map->m_next_pgofs = pgofs + 1;
goto sync_out;
}
}
}

11
fs/f2fs/file.c
View File

@ -2071,10 +2071,10 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
struct f2fs_defragment *range)
{
struct inode *inode = file_inode(filp);
struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
.m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE };
struct f2fs_map_blocks map = { .m_next_extent = NULL,
.m_seg_type = NO_CHECK_TYPE };
struct extent_info ei = {0,0,0};
pgoff_t pg_start, pg_end;
pgoff_t pg_start, pg_end, next_pgofs;
unsigned int blk_per_seg = sbi->blocks_per_seg;
unsigned int total = 0, sec_num;
block_t blk_end = 0;
@ -2108,6 +2108,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
}
map.m_lblk = pg_start;
map.m_next_pgofs = &next_pgofs;
/*
* lookup mapping info in dnode page cache, skip defragmenting if all
@ -2121,7 +2122,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
goto out;
if (!(map.m_flags & F2FS_MAP_FLAGS)) {
map.m_lblk++;
map.m_lblk = next_pgofs;
continue;
}
@ -2166,7 +2167,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
goto clear_out;
if (!(map.m_flags & F2FS_MAP_FLAGS)) {
map.m_lblk++;
map.m_lblk = next_pgofs;
continue;
}