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| author | Vyacheslav Cherkashin <v.cherkashin@samsung.com> | 2015-08-28 14:10:13 +0300 |
|---|---|---|
| committer | Vyacheslav Cherkashin <v.cherkashin@samsung.com> | 2015-08-28 14:36:27 +0300 |
| commit | a2e5cc4edd58c153368ff610acd810f3e99949c6 (patch) | |
| tree | 1fb5e557776537e820683c07eb34b13645342d02 | |
| parent | 195a72abdfa1fb6923df7c6fc342808c52fd0bab (diff) | |
| download | swap-modules-a2e5cc4edd58c153368ff610acd810f3e99949c6.tar.gz swap-modules-a2e5cc4edd58c153368ff610acd810f3e99949c6.tar.bz2 swap-modules-a2e5cc4edd58c153368ff610acd810f3e99949c6.zip | |
[FIX] mmap allocation atribute
PROT_WRITE atribute is needed for writing into allocated memory
Change-Id: I6beb96bae7c331024b99fb2675bcde4430e1f9f0
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
| -rw-r--r-- | preload/preload_pd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/preload/preload_pd.c b/preload/preload_pd.c index 568b310e..ec7a7eca 100644 --- a/preload/preload_pd.c +++ b/preload/preload_pd.c @@ -290,7 +290,7 @@ static unsigned long make_preload_path(void) size_t len = strnlen(path, PATH_MAX); down_write(¤t->mm->mmap_sem); - page = swap_do_mmap(NULL, 0, PAGE_SIZE, PROT_READ, + page = swap_do_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0); up_write(¤t->mm->mmap_sem); @@ -301,7 +301,7 @@ static unsigned long make_preload_path(void) } /* set preload_library path */ - if (copy_to_user((void __user *)page, path, len) <= 0) + if (copy_to_user((void __user *)page, path, len) != 0) printk(KERN_ERR PRELOAD_PREFIX "Cannot copy string to user!\n"); } |