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authorEric W. Biederman <ebiederm@xmission.com>2011-10-13 02:01:34 +0400
committerDavid S. Miller <davem@davemloft.net>2011-10-20 03:24:15 +0400
commit23396180a9770df2c6a694bbb689c12bdf792f94 (patch)
treea943f113f6532b04fcef1673113493cf44ac2365 /fs/sysfs
parent4c22400ab64d434a00ecbe0c655a16956c902aa8 (diff)
downloadlinux-23396180a9770df2c6a694bbb689c12bdf792f94.tar.xz
sysfs: Remove support for tagged directories with untagged members.
Now that /sys/class/net/bonding_masters is implemented as a tagged sysfs file we can remove support for untagged files in tagged directories. This change removes any ambiguity of what a NULL namespace value means. A NULL namespace parameter after this patch means that we are talking about an untagged sysfs dirent. This makes the sysfs code much less prone to mistakes when during maintenance. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/sysfs')
-rw-r--r--fs/sysfs/dir.c6
-rw-r--r--fs/sysfs/inode.c2
2 files changed, 3 insertions, 5 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index ea9120a830d8..352d26d98c0a 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -543,7 +543,7 @@ 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 (ns && sd->s_ns && (sd->s_ns != ns))
+ if (sd->s_ns != ns)
continue;
if (!strcmp(sd->s_name, name))
return sd;
@@ -885,7 +885,7 @@ 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 && pos->s_ns != ns)
+ while (pos && pos->s_ns != ns)
pos = pos->s_sibling;
return pos;
}
@@ -896,7 +896,7 @@ 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 && pos->s_ns != ns)
+ while (pos && pos->s_ns != ns)
pos = pos->s_sibling;
return pos;
}
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index e3f091a81c72..527f0cca66ee 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -336,8 +336,6 @@ 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);