Commit b877c4c1 authored Aug 08, 2017 by Chao Yu Committed by Sahitya Tummala Dec 16, 2017

f2fs: retry to revoke atomic commit in -ENOMEM case



commit 7f2b4e8ea5b49846f7d20f1694dbca81f88b8d50 upstream.

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>
Git-commit: 57523515
Git-repo: https://android.googlesource.com/kernel/common.git


Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>

parent e87db6f5

fs/f2fs/segment.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}