From: Jaegeuk Kim Subject: [PATCH] f2fs: give a try to do atomic write in -ENOMEM case Date: Wed, 26 Jul 2017 11:16:51 -0700 Message-ID: <20170726181651.68667-1-jaegeuk@kernel.org> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim List-Id: linux-f2fs-devel.lists.sourceforge.net It'd be better to retry writing atomic pages when we get -ENOMEM. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index f964b68718c1..f5d139f897dc 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -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; -- 2.13.0.rc1.294.g07d810a77f-goog