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[ARM] Oprofile: dynamically allocate counter_config
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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parent
93ad79496c
commit
ae92dc9f7b
2 changed files with 10 additions and 3 deletions
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@ -10,6 +10,7 @@
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#include <linux/init.h>
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#include <linux/oprofile.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/sysdev.h>
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#include <linux/mutex.h>
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@ -20,7 +21,7 @@ static struct op_arm_model_spec *op_arm_model;
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static int op_arm_enabled;
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static DEFINE_MUTEX(op_arm_mutex);
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struct op_counter_config counter_config[OP_MAX_COUNTER];
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struct op_counter_config *counter_config;
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static int op_arm_create_files(struct super_block *sb, struct dentry *root)
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{
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@ -28,7 +29,7 @@ static int op_arm_create_files(struct super_block *sb, struct dentry *root)
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for (i = 0; i < op_arm_model->num_counters; i++) {
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struct dentry *dir;
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char buf[2];
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char buf[4];
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snprintf(buf, sizeof buf, "%d", i);
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dir = oprofilefs_mkdir(sb, root, buf);
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@ -139,6 +140,11 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
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if (ret < 0)
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return ret;
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counter_config = kmalloc(sizeof(struct op_counter_config) * spec->num_counters,
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GFP_KERNEL);
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if (!counter_config)
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return -ENOMEM;
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op_arm_model = spec;
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init_driverfs();
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ops->create_files = op_arm_create_files;
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@ -160,4 +166,5 @@ void oprofile_arch_exit(void)
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exit_driverfs();
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op_arm_model = NULL;
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}
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kfree(counter_config);
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}
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@ -24,6 +24,6 @@ struct op_counter_config {
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unsigned long user;
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};
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extern struct op_counter_config counter_config[];
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extern struct op_counter_config *counter_config;
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#endif /* OP_COUNTER_H */
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