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-rw-r--r--fs/ubifs/super.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 8780efb..ea493e6 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -36,6 +36,12 @@
#include <linux/mount.h>
#include "ubifs.h"
+/*
+ * Maximum amount of memory we may 'kmalloc()' without worrying that we are
+ * allocating too much.
+ */
+#define UBIFS_KMALLOC_OK (128*1024)
+
/* Slab cache for UBIFS inodes */
struct kmem_cache *ubifs_inode_slab;
@@ -561,17 +567,18 @@ static int init_constants_early(struct ubifs_info *c)
* calculations when reporting free space.
*/
c->leb_overhead = c->leb_size % UBIFS_MAX_DATA_NODE_SZ;
+
/* Buffer size for bulk-reads */
c->bulk_read_buf_size = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ;
if (c->bulk_read_buf_size > c->leb_size)
c->bulk_read_buf_size = c->leb_size;
- if (c->bulk_read_buf_size > 128 * 1024) {
- /* Check if we can kmalloc more than 128KiB */
- void *try = kmalloc(c->bulk_read_buf_size, GFP_KERNEL);
-
+ if (c->bulk_read_buf_size > UBIFS_KMALLOC_OK) {
+ /* Check if we can kmalloc that much */
+ void *try = kmalloc(c->bulk_read_buf_size,
+ GFP_KERNEL | __GFP_NOWARN);
kfree(try);
if (!try)
- c->bulk_read_buf_size = 128 * 1024;
+ c->bulk_read_buf_size = UBIFS_KMALLOC_OK;
}
return 0;
}
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