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authorEric W. Biederman <ebiederm@xmission.com>2011-12-18 20:09:31 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-24 12:41:46 -0800
commit524b6c5b39b931311dfe5a2f5abae2f5c9731676 (patch)
tree0f81439d21bda26dbf94746a7e7da39ec7368fab /fs/sysfs/inode.c
parentcafa6b5dd7ce4f0e0a30be301be4efed587a7808 (diff)
downloadlinux-524b6c5b39b931311dfe5a2f5abae2f5c9731676.tar.bz2
sysfs: Kill nlink counting.
Tracking the number of subdirectories requires an extra field that increases the size of sysfs_dirent. nlinks are not particularly interesting for sysfs and the nlink counts are wrong when network namespaces are involved so stop counting them, and always return nlink == 1. Userspace already knows that directories with nlink == 1 have an nlink count they can't use to count subdirectories. This reduces the size of sysfs_dirent by 8 bytes on 64bit platforms. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/inode.c')
-rw-r--r--fs/sysfs/inode.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 4a802b4a9056..0ac3e1c1a7d8 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -216,9 +216,6 @@ static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
iattrs->ia_secdata,
iattrs->ia_secdata_len);
}
-
- if (sysfs_type(sd) == SYSFS_DIR)
- set_nlink(inode, sd->s_dir.subdirs + 2);
}
int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)