mm: simplify follow_pte{,pmd}
authorChristoph Hellwig <hch@lst.de>
Wed, 16 Dec 2020 04:47:23 +0000 (20:47 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 16 Dec 2020 06:46:19 +0000 (22:46 -0800)
commitff5c19ed4b087073cea38ff0edc80c23d7256943
tree114406e05a7f7ffe82e6945445d3f557c7746c41
parent7336375734d65ecc82956b59a79cf5deccce880c
mm: simplify follow_pte{,pmd}

Merge __follow_pte_pmd, follow_pte_pmd and follow_pte into a single
follow_pte function and just pass two additional NULL arguments for the
two previous follow_pte callers.

[sfr@canb.auug.org.au: merge fix for "s390/pci: remove races against pte updates"]
Link: https://lkml.kernel.org/r/20201111221254.7f6a3658@canb.auug.org.au
Link: https://lkml.kernel.org/r/20201029101432.47011-3-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/s390/pci/pci_mmio.c
fs/dax.c
include/linux/mm.h
mm/memory.c