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authorChao Yu <yuchao0@huawei.com>2017-08-08 13:09:08 +0200
committerJaegeuk Kim <jaegeuk@kernel.org>2017-08-22 00:55:04 +0200
commit7f2b4e8ea5b49846f7d20f1694dbca81f88b8d50 (patch)
treea25953ba8c96fcf5c728dcb22fd85b05bdf978d0 /fs
parentf2fs: let fill_super handle roll-forward errors (diff)
downloadlinux-7f2b4e8ea5b49846f7d20f1694dbca81f88b8d50.tar.xz
linux-7f2b4e8ea5b49846f7d20f1694dbca81f88b8d50.zip
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/f2fs/segment.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 95267630c8c4..05144b3a7f62 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;
}