diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-19 09:43:56 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-26 10:44:22 +0200 |
| commit | 4e46a023c515de61df61770e03673c3f72cc6b20 (patch) | |
| tree | db30bc3784121022c7be1a992affccb8bc5802fc /fs/f2fs/super.c | |
| parent | 57864ae5ce3ab5c6e3137dd03edefdb2e5531ba1 (diff) | |
f2fs: retry ENOMEM for quota_read|write
This gives another chance to read or write quota data.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 21e524ecdb1d..c32a1e1db240 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1321,8 +1321,13 @@ static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); repeat: page = read_mapping_page(mapping, blkidx, NULL); - if (IS_ERR(page)) + if (IS_ERR(page)) { + if (PTR_ERR(page) == -ENOMEM) { + congestion_wait(BLK_RW_ASYNC, HZ/50); + goto repeat; + } return PTR_ERR(page); + } lock_page(page); @@ -1365,11 +1370,16 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type, while (towrite > 0) { tocopy = min_t(unsigned long, sb->s_blocksize - offset, towrite); - +retry: err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, &page, NULL); - if (unlikely(err)) + if (unlikely(err)) { + if (err == -ENOMEM) { + congestion_wait(BLK_RW_ASYNC, HZ/50); + goto retry; + } break; + } kaddr = kmap_atomic(page); memcpy(kaddr + offset, data, tocopy); |