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| author | Jan Stancek <jstancek@redhat.com> | 2020-01-03 18:37:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-03 10:39:08 -0800 |
| commit | 15f0ec941f4f908fefa23a30ded8358977cc1cc0 (patch) | |
| tree | 98915c2ae263664ccbf0503d5b65df81cacd10bd | |
| parent | 7ca4ad5ba886557b67d42242a80f303c3a99ded1 (diff) | |
| download | linux-15f0ec941f4f908fefa23a30ded8358977cc1cc0.tar.gz | |
mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()
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>
| -rw-r--r-- | fs/hugetlbfs/inode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index d5c2a3158610..a66e425884d1 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1498,8 +1498,10 @@ 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)) |