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| author | Al Viro <viro@ftp.linux.org.uk> | 2012-02-13 03:58:52 +0000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2012-02-14 10:45:42 +1100 |
| commit | 4040153087478993cbf0809f444400a3c808074c (patch) | |
| tree | 2dc7af85b0cf930f1656553bd38410b8c16601a6 /mm/mmap.c | |
| parent | 191c542442fdf53cc3c496c00be13367fd9cd42d (diff) | |
| download | lwn-4040153087478993cbf0809f444400a3c808074c.tar.gz lwn-4040153087478993cbf0809f444400a3c808074c.zip | |
security: trim security.h
Trim security.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index db05495d6d0a..694a8625ab0d 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -936,6 +936,19 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags, #endif /* CONFIG_PROC_FS */ /* + * If a hint addr is less than mmap_min_addr change hint to be as + * low as possible but still greater than mmap_min_addr + */ +static inline unsigned long round_hint_to_min(unsigned long hint) +{ + hint &= PAGE_MASK; + if (((void *)hint != NULL) && + (hint < mmap_min_addr)) + return PAGE_ALIGN(mmap_min_addr); + return hint; +} + +/* * The caller must hold down_write(¤t->mm->mmap_sem). */ |