diff options
| author | Naoya Horiguchi <[email protected]> | 2012-10-08 16:33:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-10-09 16:23:00 +0900 |
| commit | 7a71932d5676b7410ab64d149bad8bde6b0d8632 (patch) | |
| tree | bbe2b908dfcc7f5f8924e9cfc0fe0a49501d9a28 /drivers/scsi/mpt2sas/mpi/mpi2_init.h | |
| parent | cd8ed2a45a401cb692d769e92de7d73aa42fabce (diff) | |
kpageflags: fix wrong KPF_THP on non-huge compound pages
KPF_THP can be set on non-huge compound pages (like slab pages or pages
allocated by drivers with __GFP_COMP) because PageTransCompound only
checks PG_head and PG_tail. Obviously this is a bug and breaks user space
applications which look for thp via /proc/kpageflags.
This patch rules out setting KPF_THP wrongly by additionally checking
PageLRU on the head pages.
Signed-off-by: Naoya Horiguchi <[email protected]>
Acked-by: KOSAKI Motohiro <[email protected]>
Acked-by: David Rientjes <[email protected]>
Reviewed-by: Fengguang Wu <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpi/mpi2_init.h')
0 files changed, 0 insertions, 0 deletions