diff options
author | Michel Lespinasse <walken@google.com> | 2013-02-22 16:35:55 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-23 17:50:22 -0800 |
commit | 28a35716d317980ae9bc2ff2f84c33a3cda9e884 (patch) | |
tree | a69307192d34334c6869cfe33b6fea4e358de718 /fs/xfs/xfs_discard.c | |
parent | e0fb58152955142f48ed31c8c0541b53e094da6b (diff) | |
download | linux-28a35716d317980ae9bc2ff2f84c33a3cda9e884.tar.bz2 |
mm: use long type for page counts in mm_populate() and get_user_pages()
Use long type for page counts in mm_populate() so as to avoid integer
overflow when running the following test code:
int main(void) {
void *p = mmap(NULL, 0x100000000000, PROT_READ,
MAP_PRIVATE | MAP_ANON, -1, 0);
printf("p: %p\n", p);
mlockall(MCL_CURRENT);
printf("done\n");
return 0;
}
Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/xfs/xfs_discard.c')
0 files changed, 0 insertions, 0 deletions