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

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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 1563ac75e7
commit 72e1c797b5
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: