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| author | Yongkai Wu <nic.wuyk@gmail.com> | 2018-12-14 14:17:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-14 15:05:45 -0800 |
| commit | 8ace22bce84014957da37e6b8baa49ee81c03366 (patch) | |
| tree | 3923e3622950039abbb6318349b2c693d0218289 /fs/iomap.c | |
| parent | f5a222dc2f0e893cc6b0fa34d421a41ca7dfb72e (diff) | |
| download | blackbird-obmc-linux-8ace22bce84014957da37e6b8baa49ee81c03366.tar.gz blackbird-obmc-linux-8ace22bce84014957da37e6b8baa49ee81c03366.zip | |
hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
A stack trace was triggered by VM_BUG_ON_PAGE(page_mapcount(page), page)
in free_huge_page(). Unfortunately, the page->mapping field was set to
NULL before this test. This made it more difficult to determine the
root cause of the problem.
Move the VM_BUG_ON_PAGE tests earlier in the function so that if they do
trigger more information is present in the page struct.
Link: http://lkml.kernel.org/r/1543491843-23438-1-git-send-email-nic_w@163.com
Signed-off-by: Yongkai Wu <nic_w@163.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/iomap.c')
0 files changed, 0 insertions, 0 deletions
