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ashmem: Fix arguments to ashmem_shrink

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The arguments to shrink functions have changed, update
ashmem_shrink to match.

Signed-off-by: Colin Cross <ccross@android.com>
[jstultz: tweaked commit subject]
CC: Brian Swetland <swetland@google.com>
CC: Colin Cross <ccross@android.com>
CC: Arve Hjønnevåg <arve@android.com>
CC: Dima Zavin <dima@android.com>
CC: Robert Love <rlove@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Colin Cross 2011-12-20 16:49:53 -08:00 committed by Greg Kroah-Hartman
parent 5154b93b8e
commit 33e8fc463e
1 changed files with 12 additions and 7 deletions
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19
drivers/staging/android/ashmem.c
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@ -355,14 +355,14 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
* chunks of ashmem regions LRU-wise one-at-a-time until we hit 'nr_to_scan'
* pages freed.
*/
static int ashmem_shrink(struct shrinker *s, int nr_to_scan, gfp_t gfp_mask)
static int ashmem_shrink(struct shrinker *s, struct shrink_control *sc)
{
struct ashmem_range *range, *next;
/* We might recurse into filesystem code, so bail out if necessary */
if (nr_to_scan && !(gfp_mask & __GFP_FS))
if (sc->nr_to_scan && !(sc->gfp_mask & __GFP_FS))
return -1;
if (!nr_to_scan)
if (!sc->nr_to_scan)
return lru_count;
mutex_lock(&ashmem_mutex);
@ -375,8 +375,8 @@ static int ashmem_shrink(struct shrinker *s, int nr_to_scan, gfp_t gfp_mask)
range->purged = ASHMEM_WAS_PURGED;
lru_del(range);
nr_to_scan -= range_size(range);
if (nr_to_scan <= 0)
sc->nr_to_scan -= range_size(range);
if (sc->nr_to_scan <= 0)
break;
}
mutex_unlock(&ashmem_mutex);
@ -670,8 +670,13 @@ static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case ASHMEM_PURGE_ALL_CACHES:
ret = -EPERM;
if (capable(CAP_SYS_ADMIN)) {
ret = ashmem_shrink(&ashmem_shrinker, 0, GFP_KERNEL);
ashmem_shrink(&ashmem_shrinker, ret, GFP_KERNEL);
struct shrink_control sc = {
.gfp_mask = GFP_KERNEL,
.nr_to_scan = 0,
};
ret = ashmem_shrink(&ashmem_shrinker, &sc);
sc.nr_to_scan = ret;
ashmem_shrink(&ashmem_shrinker, &sc);
}
break;
}