Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/md/persistent-data/Kconfig b/drivers/md/persistent-data/Kconfig
index a53cbc9..baaec1a 100644
--- a/drivers/md/persistent-data/Kconfig
+++ b/drivers/md/persistent-data/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config DM_PERSISTENT_DATA
tristate
depends on BLK_DEV_DM
diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c
index 492a3f8..749ec26 100644
--- a/drivers/md/persistent-data/dm-block-manager.c
+++ b/drivers/md/persistent-data/dm-block-manager.c
@@ -35,7 +35,10 @@
#define MAX_HOLDERS 4
#define MAX_STACK 10
-typedef unsigned long stack_entries[MAX_STACK];
+struct stack_store {
+ unsigned int nr_entries;
+ unsigned long entries[MAX_STACK];
+};
struct block_lock {
spinlock_t lock;
@@ -44,8 +47,7 @@
struct task_struct *holders[MAX_HOLDERS];
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
- struct stack_trace traces[MAX_HOLDERS];
- stack_entries entries[MAX_HOLDERS];
+ struct stack_store traces[MAX_HOLDERS];
#endif
};
@@ -73,7 +75,7 @@
{
unsigned h = __find_holder(lock, NULL);
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
- struct stack_trace *t;
+ struct stack_store *t;
#endif
get_task_struct(task);
@@ -81,11 +83,7 @@
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
t = lock->traces + h;
- t->nr_entries = 0;
- t->max_entries = MAX_STACK;
- t->entries = lock->entries[h];
- t->skip = 2;
- save_stack_trace(t);
+ t->nr_entries = stack_trace_save(t->entries, MAX_STACK, 2);
#endif
}
@@ -106,7 +104,8 @@
DMERR("recursive lock detected in metadata");
#ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
DMERR("previously held here:");
- print_stack_trace(lock->traces + i, 4);
+ stack_trace_print(lock->traces[i].entries,
+ lock->traces[i].nr_entries, 4);
DMERR("subsequent acquisition attempted here:");
dump_stack();
@@ -462,7 +461,7 @@
int r;
p = dm_bufio_read(bm->bufio, b, (struct dm_buffer **) result);
- if (unlikely(IS_ERR(p)))
+ if (IS_ERR(p))
return PTR_ERR(p);
aux = dm_bufio_get_aux_data(to_buffer(*result));
@@ -498,7 +497,7 @@
return -EPERM;
p = dm_bufio_read(bm->bufio, b, (struct dm_buffer **) result);
- if (unlikely(IS_ERR(p)))
+ if (IS_ERR(p))
return PTR_ERR(p);
aux = dm_bufio_get_aux_data(to_buffer(*result));
@@ -531,7 +530,7 @@
int r;
p = dm_bufio_get(bm->bufio, b, (struct dm_buffer **) result);
- if (unlikely(IS_ERR(p)))
+ if (IS_ERR(p))
return PTR_ERR(p);
if (unlikely(!p))
return -EWOULDBLOCK;
@@ -567,7 +566,7 @@
return -EPERM;
p = dm_bufio_new(bm->bufio, b, (struct dm_buffer **) result);
- if (unlikely(IS_ERR(p)))
+ if (IS_ERR(p))
return PTR_ERR(p);
memset(p, 0, dm_bm_block_size(bm));
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index 58b3197..8aae062 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -628,39 +628,40 @@
new_parent = shadow_current(s);
+ pn = dm_block_data(new_parent);
+ size = le32_to_cpu(pn->header.flags) & INTERNAL_NODE ?
+ sizeof(__le64) : s->info->value_type.size;
+
+ /* create & init the left block */
r = new_block(s->info, &left);
if (r < 0)
return r;
+ ln = dm_block_data(left);
+ nr_left = le32_to_cpu(pn->header.nr_entries) / 2;
+
+ ln->header.flags = pn->header.flags;
+ ln->header.nr_entries = cpu_to_le32(nr_left);
+ ln->header.max_entries = pn->header.max_entries;
+ ln->header.value_size = pn->header.value_size;
+ memcpy(ln->keys, pn->keys, nr_left * sizeof(pn->keys[0]));
+ memcpy(value_ptr(ln, 0), value_ptr(pn, 0), nr_left * size);
+
+ /* create & init the right block */
r = new_block(s->info, &right);
if (r < 0) {
unlock_block(s->info, left);
return r;
}
- pn = dm_block_data(new_parent);
- ln = dm_block_data(left);
rn = dm_block_data(right);
-
- nr_left = le32_to_cpu(pn->header.nr_entries) / 2;
nr_right = le32_to_cpu(pn->header.nr_entries) - nr_left;
- ln->header.flags = pn->header.flags;
- ln->header.nr_entries = cpu_to_le32(nr_left);
- ln->header.max_entries = pn->header.max_entries;
- ln->header.value_size = pn->header.value_size;
-
rn->header.flags = pn->header.flags;
rn->header.nr_entries = cpu_to_le32(nr_right);
rn->header.max_entries = pn->header.max_entries;
rn->header.value_size = pn->header.value_size;
-
- memcpy(ln->keys, pn->keys, nr_left * sizeof(pn->keys[0]));
memcpy(rn->keys, pn->keys + nr_left, nr_right * sizeof(pn->keys[0]));
-
- size = le32_to_cpu(pn->header.flags) & INTERNAL_NODE ?
- sizeof(__le64) : s->info->value_type.size;
- memcpy(value_ptr(ln, 0), value_ptr(pn, 0), nr_left * size);
memcpy(value_ptr(rn, 0), value_ptr(pn, nr_left),
nr_right * size);
diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index 0a3b8ae..bd68f6f 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -190,6 +190,8 @@
static int sm_ll_init(struct ll_disk *ll, struct dm_transaction_manager *tm)
{
+ memset(ll, 0, sizeof(struct ll_disk));
+
ll->tm = tm;
ll->bitmap_info.tm = tm;
@@ -367,10 +369,6 @@
*/
dm_tm_unlock(ll->tm, blk);
continue;
-
- } else if (r < 0) {
- dm_tm_unlock(ll->tm, blk);
- return r;
}
dm_tm_unlock(ll->tm, blk);
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index aec4492..2532858 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -249,7 +249,7 @@
}
if (smm->recursion_count == 1)
- apply_bops(smm);
+ r = apply_bops(smm);
smm->recursion_count--;