diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-03-15 17:46:35 +0800 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2013-03-15 16:51:02 +0100 |
| commit | 56af4f566a637b8dd78a8d4ea8624e3d27645e6e (patch) | |
| tree | a8a120370c50ceda5ee1c2ddb4a14c2cc199d1f7 /kexec/kexec.c | |
| parent | 337d4fcbdc45e61cab28f8ba6da49015cca5c8d0 (diff) | |
kexec: use _ALIGN* to make the logic clear
By replacing all the explicit align opertion with marco _ALIGN*,
the code logic could more clear.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/kexec.c')
| -rw-r--r-- | kexec/kexec.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/kexec/kexec.c b/kexec/kexec.c index 494c5b3..f3928af 100644 --- a/kexec/kexec.c +++ b/kexec/kexec.c @@ -257,8 +257,7 @@ unsigned long locate_hole(struct kexec_info *info, if (start < hole_min) { start = hole_min; } - start = (start + hole_align - 1) & - ~((unsigned long long)hole_align - 1); + start = _ALIGN(start, hole_align); if (end > mem_max) { end = mem_max; } @@ -276,8 +275,8 @@ unsigned long locate_hole(struct kexec_info *info, hole_base = start; break; } else { - hole_base = (end - hole_size) & - ~((unsigned long long)hole_align - 1); + hole_base = _ALIGN_DOWN(end - hole_size, + hole_align); } } } @@ -313,7 +312,7 @@ void add_segment_phys_virt(struct kexec_info *info, /* Round memsz up to a multiple of pagesize */ pagesize = getpagesize(); - memsz = (memsz + (pagesize - 1)) & ~(pagesize - 1); + memsz = _ALIGN(memsz, pagesize); /* Verify base is pagesize aligned. * Finding a way to cope with this problem @@ -363,7 +362,7 @@ unsigned long add_buffer_phys_virt(struct kexec_info *info, /* Round memsz up to a multiple of pagesize */ pagesize = getpagesize(); - memsz = (memsz + (pagesize - 1)) & ~(pagesize - 1); + memsz = _ALIGN(memsz, pagesize); base = locate_hole(info, memsz, buf_align, buf_min, buf_max, buf_end); if (base == ULONG_MAX) { @@ -457,8 +456,8 @@ int add_backup_segments(struct kexec_info *info, unsigned long backup_base, return -1; if (!find_segment_hole(info, &bkseg_base, &bkseg_size)) break; - start = (bkseg_base + pagesize - 1) & ~(pagesize - 1); - end = (bkseg_base + bkseg_size) & ~(pagesize - 1); + start = _ALIGN(bkseg_base, pagesize); + end = _ALIGN_DOWN(bkseg_base + bkseg_size, pagesize); add_segment_phys_virt(info, NULL, 0, start, end-start, 0); mem_size = mem_base + mem_size - \ |