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CacheFiles: Downgrade the requirements passed to the allocator

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Downgrade the requirements passed to the allocator in the gfp flags parameter.
FS-Cache/CacheFiles can handle OOM conditions simply by aborting the attempt to
store an object or a page in the cache.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2012-12-20 21:52:33 +00:00
commit 5f4f9f4af1
6 changed files with 19 additions and 15 deletions
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8
fs/cachefiles/interface.c
View file

@ -41,12 +41,12 @@ static struct fscache_object *cachefiles_alloc_object(
_enter("{%s},%p,", cache->cache.identifier, cookie);
lookup_data = kmalloc(sizeof(*lookup_data), GFP_KERNEL);
lookup_data = kmalloc(sizeof(*lookup_data), cachefiles_gfp);
if (!lookup_data)
goto nomem_lookup_data;
/* create a new object record and a temporary leaf image */
object = kmem_cache_alloc(cachefiles_object_jar, GFP_KERNEL);
object = kmem_cache_alloc(cachefiles_object_jar, cachefiles_gfp);
if (!object)
goto nomem_object;
@ -63,7 +63,7 @@ static struct fscache_object *cachefiles_alloc_object(
* - stick the length on the front and leave space on the back for the
* encoder
*/
buffer = kmalloc((2 + 512) + 3, GFP_KERNEL);
buffer = kmalloc((2 + 512) + 3, cachefiles_gfp);
if (!buffer)
goto nomem_buffer;
@ -219,7 +219,7 @@ static void cachefiles_update_object(struct fscache_object *_object)
return;
}
auxdata = kmalloc(2 + 512 + 3, GFP_KERNEL);
auxdata = kmalloc(2 + 512 + 3, cachefiles_gfp);
if (!auxdata) {
_leave(" [nomem]");
return;