A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-25 06:03:36 -04:00
Code Issues Projects Releases Packages Wiki Activity

mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()

Browse source 
commit 15f0ec941f4f908fefa23a30ded8358977cc1cc0 upstream.

LTP memfd_create04 started failing for some huge page sizes
after v5.4-10135-gc3bfc5dd73c6.

The problem is the check introduced to for_each_hstate() loop that
should skip default_hstate_idx.  Since it doesn't update 'i' counter,
all subsequent huge page sizes are skipped as well.

Fixes: 8fc312b32b25 ("mm/hugetlbfs: fix error handling when setting up mounts")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jan Stancek 2020-01-03 18:37:18 +01:00 • committed by Greg Kroah-Hartman
commit 1cab43eb61
1 changed files with 3 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
fs/hugetlbfs/inode.c
View file

@ -1478,8 +1478,10 @@ static int __init init_hugetlbfs_fs(void)
/* other hstates are optional */
i = 0;
for_each_hstate(h) {
if (i == default_hstate_idx)
if (i == default_hstate_idx) {
i++;
continue;
}
mnt = mount_one_hugetlbfs(h);
if (IS_ERR(mnt))