f2fs: retry to revoke atomic commit in -ENOMEM case
During atomic committing, if we encounter -ENOMEM in revoke path, it's
better to give a chance to retry revoking.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 9526763..05144b3 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -213,9 +213,15 @@ static int __revoke_inmem_pages(struct inode *inode,
struct node_info ni;
trace_f2fs_commit_inmem_page(page, INMEM_REVOKE);
-
+retry:
set_new_dnode(&dn, inode, NULL, NULL, 0);
- if (get_dnode_of_data(&dn, page->index, LOOKUP_NODE)) {
+ err = get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
+ if (err) {
+ if (err == -ENOMEM) {
+ congestion_wait(BLK_RW_ASYNC, HZ/50);
+ cond_resched();
+ goto retry;
+ }
err = -EAGAIN;
goto next;
}
