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s390/mm: use correct unlock function in gmap_ipte_notify 

The page table lock is acquired with a call to get_locked_pte,
replace the plain spin_unlock with the correct unlock function
pte_unmap_unlock.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2014-10-30 10:55:37 +01:00
parent 5b9f2081e0
commit a697e05116
1 changed files with 1 additions and 1 deletions
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2
arch/s390/mm/pgtable.c
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@ -762,7 +762,7 @@ int gmap_ipte_notify(struct gmap *gmap, unsigned long gaddr, unsigned long len)
gaddr += PAGE_SIZE;
len -= PAGE_SIZE;
}
spin_unlock(ptl);
pte_unmap_unlock(ptep, ptl);
}
up_read(&gmap->mm->mmap_sem);
return rc;