diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2015-05-06 07:08:06 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-05-29 00:41:42 +0200 |
| commit | 19f106bc03e62739961249a29916ee3602ac3de9 (patch) | |
| tree | 3946b70b7a6b97a5e1370ddc552cf04cd896c2d2 /fs/f2fs/segment.c | |
| parent | f2fs: do not re-lookup nat cache with same nid (diff) | |
| download | linux-19f106bc03e62739961249a29916ee3602ac3de9.tar.xz linux-19f106bc03e62739961249a29916ee3602ac3de9.zip | |
f2fs: introduce f2fs_replace_block() for reuse
Introduce a generic function replace_block base on recover_data_page,
and export it. So with it we can operate file's meta data which is in
CP/SSA area when we invoke fallocate with FALLOC_FL_COLLAPSE_RANGE
flag.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 61d06b74e828..989c0bf48431 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1264,32 +1264,41 @@ void rewrite_data_page(struct f2fs_io_info *fio) f2fs_submit_page_mbio(fio); } -void recover_data_page(struct f2fs_sb_info *sbi, - struct page *page, struct f2fs_summary *sum, - block_t old_blkaddr, block_t new_blkaddr) +void f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, + block_t old_blkaddr, block_t new_blkaddr, + bool recover_curseg) { struct sit_info *sit_i = SIT_I(sbi); struct curseg_info *curseg; unsigned int segno, old_cursegno; struct seg_entry *se; int type; + unsigned short old_blkoff; segno = GET_SEGNO(sbi, new_blkaddr); se = get_seg_entry(sbi, segno); type = se->type; - if (se->valid_blocks == 0 && !IS_CURSEG(sbi, segno)) { - if (old_blkaddr == NULL_ADDR) - type = CURSEG_COLD_DATA; - else + if (!recover_curseg) { + /* for recovery flow */ + if (se->valid_blocks == 0 && !IS_CURSEG(sbi, segno)) { + if (old_blkaddr == NULL_ADDR) + type = CURSEG_COLD_DATA; + else + type = CURSEG_WARM_DATA; + } + } else { + if (!IS_CURSEG(sbi, segno)) type = CURSEG_WARM_DATA; } + curseg = CURSEG_I(sbi, type); mutex_lock(&curseg->curseg_mutex); mutex_lock(&sit_i->sentry_lock); old_cursegno = curseg->segno; + old_blkoff = curseg->next_blkoff; /* change the current segment */ if (segno != curseg->segno) { @@ -1303,6 +1312,14 @@ void recover_data_page(struct f2fs_sb_info *sbi, refresh_sit_entry(sbi, old_blkaddr, new_blkaddr); locate_dirty_segment(sbi, old_cursegno); + if (recover_curseg) { + if (old_cursegno != curseg->segno) { + curseg->next_segno = old_cursegno; + change_curseg(sbi, type, true); + } + curseg->next_blkoff = old_blkoff; + } + mutex_unlock(&sit_i->sentry_lock); mutex_unlock(&curseg->curseg_mutex); } |