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f2fs: submit node page write bios when really required 

If many threads calls fsync with data writes, we don't need to flush every
bios having node page writes.
The f2fs_wait_on_page_writeback will flush its bios when the page is really
needed.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-03-11 15:33:22 -08:00
parent fff4c55d36
commit 12bb0a8fd4
1 changed files with 1 additions and 11 deletions
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12
fs/f2fs/node.c
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@ -1236,7 +1236,7 @@ int sync_node_pages(struct f2fs_sb_info *sbi, nid_t ino,
pgoff_t index, end;
struct pagevec pvec;
int step = ino ? 2 : 0;
int nwritten = 0, wrote = 0;
int nwritten = 0;
pagevec_init(&pvec, 0);
@ -1326,8 +1326,6 @@ continue_unlock:
if (NODE_MAPPING(sbi)->a_ops->writepage(page, wbc))
unlock_page(page);
else
wrote++;
if (--wbc->nr_to_write == 0)
break;
@ -1345,14 +1343,6 @@ continue_unlock:
step++;
goto next_step;
}
if (wrote) {
if (ino)
f2fs_submit_merged_bio_cond(sbi, NULL, NULL,
ino, NODE, WRITE);
else
f2fs_submit_merged_bio(sbi, NODE, WRITE);
}
return nwritten;
}