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cygwin: mmap: fix comment and formatting, drop unused code 

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2017-12-10 14:11:41 +01:00
parent 67a657cb1d
commit 0c201166f5
1 changed files with 5 additions and 8 deletions
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13
winsup/cygwin/mmap.cc
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@ -1177,12 +1177,9 @@ go_ahead:
protection as the file's pages, then as much pages as necessary protection as the file's pages, then as much pages as necessary
to accomodate the requested length, but as reserved pages which to accomodate the requested length, but as reserved pages which
raise a SIGBUS when trying to access them. AT_ROUND_TO_PAGE raise a SIGBUS when trying to access them. AT_ROUND_TO_PAGE
and page protection on shared pages is only supported by 32 bit NT, and page protection on shared pages is only supported by the
so don't even try on WOW64. This is accomplished by not setting 32 bit environment, so don't even try on 64 bit or even WOW64.
orig_len on WOW64 above. */ This is accomplished by not setting orig_len on 64 bit above. */
#if 0
orig_len = roundup2 (orig_len, pagesize);
#endif
len = roundup2 (len, wincap.page_size ()); len = roundup2 (len, wincap.page_size ());
if (orig_len - len) if (orig_len - len)
{ {
@ -1465,7 +1462,7 @@ mlock (const void *addr, size_t len)
/* Align address and length values to page size. */ /* Align address and length values to page size. */
size_t pagesize = wincap.allocation_granularity (); size_t pagesize = wincap.allocation_granularity ();
PVOID base = (PVOID) rounddown((uintptr_t) addr, pagesize); PVOID base = (PVOID) rounddown ((uintptr_t) addr, pagesize);
SIZE_T size = roundup2 (((uintptr_t) addr - (uintptr_t) base) + len, SIZE_T size = roundup2 (((uintptr_t) addr - (uintptr_t) base) + len,
pagesize); pagesize);
NTSTATUS status = 0; NTSTATUS status = 0;
@ -1523,7 +1520,7 @@ munlock (const void *addr, size_t len)
/* Align address and length values to page size. */ /* Align address and length values to page size. */
size_t pagesize = wincap.allocation_granularity (); size_t pagesize = wincap.allocation_granularity ();
PVOID base = (PVOID) rounddown((uintptr_t) addr, pagesize); PVOID base = (PVOID) rounddown ((uintptr_t) addr, pagesize);
SIZE_T size = roundup2 (((uintptr_t) addr - (uintptr_t) base) + len, SIZE_T size = roundup2 (((uintptr_t) addr - (uintptr_t) base) + len,
pagesize); pagesize);
NTSTATUS status = NtUnlockVirtualMemory (NtCurrentProcess (), &base, &size, NTSTATUS status = NtUnlockVirtualMemory (NtCurrentProcess (), &base, &size,