From: Mike Kravetz mike.kravetz@oracle.com Subject: hugetlbfs: fix mount mode command line processing
In commit 32021982a324 ("hugetlbfs: Convert to fs_context") processing of the mount mode string was changed from match_octal() to fsparam_u32. This changed existing behavior as match_octal does not require octal values to have a '0' prefix, but fsparam_u32 does.
Use fsparam_u32oct which provides the same behavior as match_octal.
Link: https://lkml.kernel.org/r/20210721183326.102716-1-mike.kravetz@oracle.com Fixes: 32021982a324 ("hugetlbfs: Convert to fs_context") Signed-off-by: Mike Kravetz mike.kravetz@oracle.com Reported-by: Dennis Camera bugs+kernel.org@dtnr.ch Reviewed-by: Matthew Wilcox (Oracle) willy@infradead.org Cc: David Howells dhowells@redhat.com Cc: Al Viro viro@zeniv.linux.org.uk Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
fs/hugetlbfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/hugetlbfs/inode.c~hugetlbfs-fix-mount-mode-command-line-processing +++ a/fs/hugetlbfs/inode.c @@ -77,7 +77,7 @@ enum hugetlb_param { static const struct fs_parameter_spec hugetlb_fs_parameters[] = { fsparam_u32 ("gid", Opt_gid), fsparam_string("min_size", Opt_min_size), - fsparam_u32 ("mode", Opt_mode), + fsparam_u32oct("mode", Opt_mode), fsparam_string("nr_inodes", Opt_nr_inodes), fsparam_string("pagesize", Opt_pagesize), fsparam_string("size", Opt_size), _