[Xen-devel] [PATCH] safely calculate page number from maxmem

[aq <aquynh@xxxxxxxxx>]

Currently we convert from maxmemkb to pages this way:

pages = max_memkb >> (PAGE_SHIFT - 10)

But I guess it is safer to do it like this (for more cautions and we
lose nothing anyway):

pages = (max_memkb + (1 << (PAGE_SHIFT-10)) - 1) >> (PAGE_SHIFT - 10)



Signed-off-by Nguyen Anh Quynh <aquynh@xxxxxxxxx>


$ diffstat maxmem2.patch 
 tools/libxc/xc_linux_save.c |    2 +-
 xen/common/dom0_ops.c       |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Attachment: maxmem2.patch
Description: Binary data

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