On 2019-7-24 7:05, Daniel Rosenberg via Linux-f2fs-devel wrote: > /* Flags that are appropriate for regular files (all but dir-specific ones). */ > #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL)) We missed to add F2FS_CASEFOLD_FL here to exclude it in F2FS_REG_FLMASK. > @@ -1660,7 +1660,16 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask) > return -EPERM; > > oldflags = fi->i_flags; > + if ((iflags ^ oldflags) & F2FS_CASEFOLD_FL) { > + if (!f2fs_sb_has_casefold(F2FS_I_SB(inode))) > + return -EOPNOTSUPP; > + > + if (!S_ISDIR(inode->i_mode)) > + return -ENOTDIR; > > + if (!f2fs_empty_dir(inode)) > + return -ENOTEMPTY; > + } I applied the patches based on last Jaegeuk's dev branch, it seems we needs to adjust above code a bit. Otherwise it looks good to me. BTW, it looks the patchset works fine with generic/556 testcase. Thanks,