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f2fs: fix to redirty page if fail to gc data page 

If we fail to move data page during foreground GC, we should give another
chance to writeback that page which was set dirty previously by writer.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2016-07-03 22:05:13 +08:00 committed by Jaegeuk Kim
parent 81fa862e37
commit 3a4806bb83
1 changed files with 12 additions and 1 deletions
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13
fs/f2fs/gc.c
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@ -653,12 +653,23 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type)
.page = page,
.encrypted_page = NULL,
};
bool is_dirty = PageDirty(page);
int err;
retry:
set_page_dirty(page);
f2fs_wait_on_page_writeback(page, DATA, true);
if (clear_page_dirty_for_io(page))
inode_dec_dirty_pages(inode);
set_cold_data(page);
do_write_data_page(&fio);
err = do_write_data_page(&fio);
if (err == -ENOMEM && is_dirty) {
congestion_wait(BLK_RW_ASYNC, HZ/50);
goto retry;
}
clear_cold_data(page);
}
out: