Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
index 581f818..02ef87f 100644
--- a/kernel/locking/lockdep_proc.c
+++ b/kernel/locking/lockdep_proc.c
@@ -128,15 +128,22 @@
struct lock_chain *chain = v;
struct lock_class *class;
int i;
+ static const char * const irq_strs[] = {
+ [0] = "0",
+ [LOCK_CHAIN_HARDIRQ_CONTEXT] = "hardirq",
+ [LOCK_CHAIN_SOFTIRQ_CONTEXT] = "softirq",
+ [LOCK_CHAIN_SOFTIRQ_CONTEXT|
+ LOCK_CHAIN_HARDIRQ_CONTEXT] = "hardirq|softirq",
+ };
if (v == SEQ_START_TOKEN) {
- if (nr_chain_hlocks > MAX_LOCKDEP_CHAIN_HLOCKS)
+ if (!nr_free_chain_hlocks)
seq_printf(m, "(buggered) ");
seq_printf(m, "all lock chains:\n");
return 0;
}
- seq_printf(m, "irq_context: %d\n", chain->irq_context);
+ seq_printf(m, "irq_context: %s\n", irq_strs[chain->irq_context]);
for (i = 0; i < chain->depth; i++) {
class = lock_chain_get_class(chain, i);
@@ -271,8 +278,12 @@
#ifdef CONFIG_PROVE_LOCKING
seq_printf(m, " dependency chains: %11lu [max: %lu]\n",
lock_chain_count(), MAX_LOCKDEP_CHAINS);
- seq_printf(m, " dependency chain hlocks: %11d [max: %lu]\n",
- nr_chain_hlocks, MAX_LOCKDEP_CHAIN_HLOCKS);
+ seq_printf(m, " dependency chain hlocks used: %11lu [max: %lu]\n",
+ MAX_LOCKDEP_CHAIN_HLOCKS -
+ (nr_free_chain_hlocks + nr_lost_chain_hlocks),
+ MAX_LOCKDEP_CHAIN_HLOCKS);
+ seq_printf(m, " dependency chain hlocks lost: %11u\n",
+ nr_lost_chain_hlocks);
#endif
#ifdef CONFIG_TRACE_IRQFLAGS
@@ -336,6 +347,18 @@
seq_printf(m, " debug_locks: %11u\n",
debug_locks);
+ /*
+ * Zappped classes and lockdep data buffers reuse statistics.
+ */
+ seq_puts(m, "\n");
+ seq_printf(m, " zapped classes: %11lu\n",
+ nr_zapped_classes);
+#ifdef CONFIG_PROVE_LOCKING
+ seq_printf(m, " zapped lock chains: %11lu\n",
+ nr_zapped_lock_chains);
+ seq_printf(m, " large chain blocks: %11u\n",
+ nr_large_chain_blocks);
+#endif
return 0;
}
@@ -643,12 +666,12 @@
return seq_release(inode, file);
}
-static const struct file_operations proc_lock_stat_operations = {
- .open = lock_stat_open,
- .write = lock_stat_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = lock_stat_release,
+static const struct proc_ops lock_stat_proc_ops = {
+ .proc_open = lock_stat_open,
+ .proc_write = lock_stat_write,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = lock_stat_release,
};
#endif /* CONFIG_LOCK_STAT */
@@ -660,8 +683,7 @@
#endif
proc_create_single("lockdep_stats", S_IRUSR, NULL, lockdep_stats_show);
#ifdef CONFIG_LOCK_STAT
- proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL,
- &proc_lock_stat_operations);
+ proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL, &lock_stat_proc_ops);
#endif
return 0;