Merge tag 'lsk-v4.4-17.03-android' of git://git.linaro.org/kernel/linux-linaro-stable.git

[firefly-linux-kernel-4.4.55.git] / drivers / md / dm-verity-fec.h

diff --git a/drivers/md/dm-verity-fec.h b/drivers/md/dm-verity-fec.h
index 7fa0298b995e9e3f1ac25c2356c758fad8b65d34..b8e21cef3ad1937ccdac3a042e498a8995812057 100644 (file)
--- a/drivers/md/dm-verity-fec.h
+++ b/drivers/md/dm-verity-fec.h
@@ -12,6 +12,7 @@
 #ifndef DM_VERITY_FEC_H
 #define DM_VERITY_FEC_H
 
+#include "dm.h"
 #include "dm-verity.h"
 #include <linux/rslib.h>
 
@@ -27,6 +28,9 @@
 #define DM_VERITY_FEC_BUF_MAX \
        (1 << (PAGE_SHIFT - DM_VERITY_FEC_BUF_RS_BITS))
 
+/* maximum recursion level for verity_fec_decode */
+#define DM_VERITY_FEC_MAX_RECURSION    4
+
 #define DM_VERITY_OPT_FEC_DEV          "use_fec_from_device"
 #define DM_VERITY_OPT_FEC_BLOCKS       "fec_blocks"
 #define DM_VERITY_OPT_FEC_START                "fec_start"
@@ -48,6 +52,8 @@ struct dm_verity_fec {
        mempool_t *extra_pool;  /* mempool for extra buffers */
        mempool_t *output_pool; /* mempool for output */
        struct kmem_cache *cache;       /* cache for buffers */
+       atomic_t corrected;             /* corrected errors */
+       struct dm_kobject_holder kobj_holder;   /* for sysfs attributes */
 };
 
 /* per-bio data */
@@ -58,6 +64,7 @@ struct dm_verity_fec_io {
        unsigned nbufs;         /* number of buffers allocated */
        u8 *output;             /* buffer for corrected output */
        size_t output_pos;
+       unsigned level;         /* recursion level */
 };
 
 #ifdef CONFIG_DM_VERITY_FEC