Commit af10ec77 authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Greg Kroah-Hartman
Browse files

sysfs: Add support for tagged directories with untagged members. 



I had hopped to avoid this but the bonding driver adds a file
to /sys/class/net/  and the easiest way to handle that file is
to make it untagged and to register it only once.

So relax the rules on tagged directories, and make bonding work.

Signed-off-by: default avatarEric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3ff195b0

fs/sysfs/dir.c

+3 −9
Original line number Diff line number Diff line
@@ -383,12 +383,6 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) 
	if (sysfs_find_dirent(acxt->parent_sd, sd->s_ns, sd->s_name))

		return -EEXIST;



	if (sysfs_ns_type(acxt->parent_sd) && !sd->s_ns) {

		WARN(1, KERN_WARNING "sysfs: ns required in '%s' for '%s'\n",

			acxt->parent_sd->s_name, sd->s_name);

		return -EINVAL;

	}



	sd->s_parent = sysfs_get(acxt->parent_sd);



	sysfs_link_sibling(sd);
@@ -545,7 +539,7 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd, 
	struct sysfs_dirent *sd;



	for (sd = parent_sd->s_dir.children; sd; sd = sd->s_sibling) {

		if (sd->s_ns != ns)

		if (ns && sd->s_ns && (sd->s_ns != ns))

			continue;

		if (!strcmp(sd->s_name, name))

			return sd;
@@ -879,7 +873,7 @@ static struct sysfs_dirent *sysfs_dir_pos(const void *ns, 
		while (pos && (ino > pos->s_ino))

			pos = pos->s_sibling;

	}

	while (pos && pos->s_ns != ns)

	while (pos && pos->s_ns && pos->s_ns != ns)

		pos = pos->s_sibling;

	return pos;

}
@@ -890,7 +884,7 @@ static struct sysfs_dirent *sysfs_dir_next_pos(const void *ns, 
	pos = sysfs_dir_pos(ns, parent_sd, ino, pos);

	if (pos)

		pos = pos->s_sibling;

	while (pos && pos->s_ns != ns)

	while (pos && pos->s_ns && pos->s_ns != ns)

		pos = pos->s_sibling;

	return pos;

}

fs/sysfs/inode.c

+2 −0
Original line number Diff line number Diff line
@@ -335,6 +335,8 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns, const cha 
	sysfs_addrm_start(&acxt, dir_sd);



	sd = sysfs_find_dirent(dir_sd, ns, name);

	if (sd && (sd->s_ns != ns))

		sd = NULL;

	if (sd)

		sysfs_remove_one(&acxt, sd);

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