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sysfs: Update the name hash when renaming sysfs entries 

This fixes a bug introduced with sysfs name hashes where renaming a
network device appears to succeed but silently makes the sysfs files for
that network device inaccessible.

In at least one configuration this bug has stopped networking from
coming up during boot.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Tested-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Eric W. Biederman 2012-01-31 06:40:26 -08:00 committed by Greg Kroah-Hartman
parent 07d251460b
commit d5c38b137a
1 changed files with 1 additions and 0 deletions
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1
fs/sysfs/dir.c
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@ -872,6 +872,7 @@ int sysfs_rename(struct sysfs_dirent *sd,
dup_name = sd->s_name;
sd->s_name = new_name;
sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
}
/* Move to the appropriate place in the appropriate directories rbtree. */