Commit 640cc189 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: give a try to do atomic write in -ENOMEM case 



It'd be better to retry writing atomic pages when we get -ENOMEM.

Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 14af20fc

fs/f2fs/segment.c

+6 −2
Original line number Diff line number Diff line
@@ -309,17 +309,21 @@ static int __commit_inmem_pages(struct inode *inode, 
				inode_dec_dirty_pages(inode);

				remove_dirty_inode(inode);

			}



retry:

			fio.page = page;

			fio.old_blkaddr = NULL_ADDR;

			fio.encrypted_page = NULL;

			fio.need_lock = LOCK_DONE;

			err = do_write_data_page(&fio);

			if (err) {

				if (err == -ENOMEM) {

					congestion_wait(BLK_RW_ASYNC, HZ/50);

					cond_resched();

					goto retry;

				}

				unlock_page(page);

				break;

			}



			/* record old blkaddr for revoking */

			cur->old_addr = fio.old_blkaddr;

			last_idx = page->index;