From: Guo Xuenan guoxuenan@huawei.com
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8TRWW CVE: NA
--------------------------------
In DEBUG mode may do sparse inode allocations randomly, but forget to set the remaining space correctly for the inode btree to split. It's OK for most cases, only under DEBUG mode and AG space is running out may bring something bad.
Fixes: 1cdadee11f8d ("xfs: randomly do sparse inode allocations in DEBUG mode") Signed-off-by: Guo Xuenan guoxuenan@huawei.com Signed-off-by: yangerkun yangerkun@huawei.com Signed-off-by: Long Li leo.lilong@huawei.com --- fs/xfs/libxfs/xfs_ialloc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index ea2c9cf78235..dd90f30cd144 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -783,6 +783,8 @@ xfs_ialloc_ag_alloc( args.alignment = args.mp->m_sb.sb_spino_align; args.prod = 1;
+ /* Allow space for the inode btree to split */ + args.minleft = igeo->inobt_maxlevels; args.minlen = igeo->ialloc_min_blks; args.maxlen = args.minlen;