[PATCH] f2fs: give a try to do atomic write in -ENOMEM case
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From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: 2017-07-26 18:16:51
Also in:
linux-f2fs-devel, lkml
Subsystem:
f2fs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Jaegeuk Kim, Chao Yu, Alexander Viro, Christian Brauner, Linus Torvalds
It'd be better to retry writing atomic pages when we get -ENOMEM. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- 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