Commit a87bf44d authored by Ma Wupeng's avatar Ma Wupeng Committed by Wupeng Ma
Browse files

proc: introduce proc_hide_ents to hide proc files 

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I96IZH



--------------------------------

Introduce proc_hide_ents to hide proc files.

Signed-off-by: default avatarMa Wupeng <mawupeng1@huawei.com>
parent efcbd7d2

fs/proc/base.c

+10 −2
Original line number Diff line number Diff line
@@ -2847,6 +2847,11 @@ static struct dentry *proc_pident_instantiate(struct dentry *dentry, 
	return d_splice_alias(inode, dentry);

}



static bool proc_hide_pidents(const struct pid_entry *p)

{

	return false;

}



static struct dentry *proc_pident_lookup(struct inode *dir, 

					 struct dentry *dentry,

					 const struct pid_entry *p,
@@ -2865,6 +2870,8 @@ static struct dentry *proc_pident_lookup(struct inode *dir, 
	for (; p < end; p++) {

		if (p->len != dentry->d_name.len)

			continue;

		if (proc_hide_pidents(p))

			continue;

		if (!memcmp(dentry->d_name.name, p->name, p->len)) {

			res = proc_pident_instantiate(dentry, task, p);

			break;
@@ -2891,7 +2898,8 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx, 
		goto out;



	for (p = ents + (ctx->pos - 2); p < ents + nents; p++) {

		if (!proc_fill_cache(file, ctx, p->name, p->len,

		if (!proc_hide_pidents(p) &&

		    !proc_fill_cache(file, ctx, p->name, p->len,

				     proc_pident_instantiate, task, p))

			break;

		ctx->pos++;