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kernel/kprobes.c: convert to use DEFINE_SEQ_ATTRIBUTE macro

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Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: http://lkml.kernel.org/r/20200509064031.181091-4-wangkefeng.wang@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kefeng Wang 2020-06-04 16:51:11 -07:00 committed by Linus Torvalds
parent 01a9956002
commit eac2cece45
1 changed files with 6 additions and 28 deletions
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34
kernel/kprobes.c
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@ -2475,24 +2475,14 @@ static int show_kprobe_addr(struct seq_file *pi, void *v)
return 0;
}
static const struct seq_operations kprobes_seq_ops = {
static const struct seq_operations kprobes_sops = {
.start = kprobe_seq_start,
.next = kprobe_seq_next,
.stop = kprobe_seq_stop,
.show = show_kprobe_addr
};
static int kprobes_open(struct inode *inode, struct file *filp)
{
return seq_open(filp, &kprobes_seq_ops);
}
static const struct file_operations debugfs_kprobes_operations = {
.open = kprobes_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
DEFINE_SEQ_ATTRIBUTE(kprobes);
/* kprobes/blacklist -- shows which functions can not be probed */
static void *kprobe_blacklist_seq_start(struct seq_file *m, loff_t *pos)
@ -2529,24 +2519,13 @@ static void kprobe_blacklist_seq_stop(struct seq_file *f, void *v)
mutex_unlock(&kprobe_mutex);
}
static const struct seq_operations kprobe_blacklist_seq_ops = {
static const struct seq_operations kprobe_blacklist_sops = {
.start = kprobe_blacklist_seq_start,
.next = kprobe_blacklist_seq_next,
.stop = kprobe_blacklist_seq_stop,
.show = kprobe_blacklist_seq_show,
};
static int kprobe_blacklist_open(struct inode *inode, struct file *filp)
{
return seq_open(filp, &kprobe_blacklist_seq_ops);
}
static const struct file_operations debugfs_kprobe_blacklist_ops = {
.open = kprobe_blacklist_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
DEFINE_SEQ_ATTRIBUTE(kprobe_blacklist);
static int arm_all_kprobes(void)
{
@ -2705,13 +2684,12 @@ static int __init debugfs_kprobe_init(void)
dir = debugfs_create_dir("kprobes", NULL);
debugfs_create_file("list", 0400, dir, NULL,
&debugfs_kprobes_operations);
debugfs_create_file("list", 0400, dir, NULL, &kprobes_fops);
debugfs_create_file("enabled", 0600, dir, &value, &fops_kp);
debugfs_create_file("blacklist", 0400, dir, NULL,
&debugfs_kprobe_blacklist_ops);
&kprobe_blacklist_fops);
return 0;
}