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(parent: 47713f4) | patch
s390/vmem: fix vmem_add_range for 4-level paging
authorVasily Gorbik <gor@linux.ibm.com>
Fri, 21 Aug 2020 16:27:36 +0000 (18:27 +0200)
committerVasily Gorbik <gor@linux.ibm.com>
Wed, 26 Aug 2020 16:07:05 +0000 (18:07 +0200)
commit7cef734346cc349456a9cd0aa1628b2727140324
tree855eed55c1c17572f79f94b60bef421601e28680tree | snapshot
parent47713f4234ca150c02996e42d4efe51c80fc64c0commit | diff
s390/vmem: fix vmem_add_range for 4-level paging

The kernel currently crashes if 4-level paging is used. Add missing
p4d_populate for just allocated pud entry.

Fixes: 391c6ca4591a ("s390/vmem: consolidate vmem_add_range() and vmem_remove_range()")
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
arch/s390/mm/vmem.c diff | blob | history
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