| From e0f7e2b2f7e7864238a4eea05cc77ae1be2bf784 Mon Sep 17 00:00:00 2001 |
| From: Mike Kravetz <mike.kravetz@oracle.com> |
| Date: Fri, 23 Jul 2021 15:50:44 -0700 |
| Subject: hugetlbfs: fix mount mode command line processing |
| |
| From: Mike Kravetz <mike.kravetz@oracle.com> |
| |
| commit e0f7e2b2f7e7864238a4eea05cc77ae1be2bf784 upstream. |
| |
| 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> |
| Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| fs/hugetlbfs/inode.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/fs/hugetlbfs/inode.c |
| +++ b/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), |