From b0f97b2f7316b31570474f501cfc82aaa043b541 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 11:49:04 -0400 Subject: [PATCH] btrfs: btrfs_root_readonly() broken on big-endian commit 6ed3cf2cdfce4c9f1d73171bd3f27d9cb77b734e upstream. ->root_flags is __le64 and all accesses to it go through the helpers that do proper conversions. Except for btrfs_root_readonly(), which checks bit 0 as in host-endian... Signed-off-by: Al Viro Cc: Chris Mason Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/ctree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 80b6486fd5e6..91128d7e9d39 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2115,7 +2115,7 @@ BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item, static inline bool btrfs_root_readonly(struct btrfs_root *root) { - return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY; + return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0; } /* struct btrfs_root_backup */ -- 2.39.5