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f2fs: remove rewrite_node_page

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I think we need to let the dirty node pages remain in the page cache instead
of rewriting them in their places.
So, after done with successful recovery, write_checkpoint will flush all of them
through the normal write path.
Through this, we can avoid potential error cases in terms of block allocation.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2014-08-15 09:56:46 -07:00
parent 764aa3e978
commit 202095a7a0
4 changed files with 0 additions and 64 deletions
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49
fs/f2fs/segment.c
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@@ -1103,55 +1103,6 @@ void recover_data_page(struct f2fs_sb_info *sbi,
mutex_unlock(&curseg->curseg_mutex);
}
void rewrite_node_page(struct f2fs_sb_info *sbi,
struct page *page, struct f2fs_summary *sum,
block_t old_blkaddr, block_t new_blkaddr)
{
struct sit_info *sit_i = SIT_I(sbi);
int type = CURSEG_WARM_NODE;
struct curseg_info *curseg;
unsigned int segno, old_cursegno;
block_t next_blkaddr = next_blkaddr_of_node(page);
unsigned int next_segno = GET_SEGNO(sbi, next_blkaddr);
struct f2fs_io_info fio = {
.type = NODE,
.rw = WRITE_SYNC,
};
curseg = CURSEG_I(sbi, type);
mutex_lock(&curseg->curseg_mutex);
mutex_lock(&sit_i->sentry_lock);
segno = GET_SEGNO(sbi, new_blkaddr);
old_cursegno = curseg->segno;
/* change the current segment */
if (segno != curseg->segno) {
curseg->next_segno = segno;
change_curseg(sbi, type, true);
}
curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr);
__add_sum_entry(sbi, type, sum);
/* change the current log to the next block addr in advance */
if (next_segno != segno) {
curseg->next_segno = next_segno;
change_curseg(sbi, type, true);
}
curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, next_blkaddr);
/* rewrite node page */
set_page_writeback(page);
f2fs_submit_page_mbio(sbi, page, new_blkaddr, &fio);
f2fs_submit_merged_bio(sbi, NODE, WRITE);
refresh_sit_entry(sbi, old_blkaddr, new_blkaddr);
locate_dirty_segment(sbi, old_cursegno);
mutex_unlock(&sit_i->sentry_lock);
mutex_unlock(&curseg->curseg_mutex);
}
static inline bool is_merged_page(struct f2fs_sb_info *sbi,
struct page *page, enum page_type type)
{