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f2fs: retry to revoke atomic commit in -ENOMEM case

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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>
This commit is contained in:
Chao Yu 2017-08-08 19:09:08 +08:00 committed by Jaegeuk Kim
parent afd2b4da40
commit 7f2b4e8ea5
1 changed files with 8 additions and 2 deletions
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10
fs/f2fs/segment.c
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@ -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;
}