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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-11-01 03:13:17 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-12-04 14:34:54 -0500 |
| commit | f77c80142e1afe6d5c16975ca5d7d1fc324b16f9 (patch) | |
| tree | c2c8f726402610aee77ccca0627a4c38f944640b /fs/proc/namespaces.c | |
| parent | copy address of proc_ns_ops into ns_common (diff) | |
| download | linux-dev-f77c80142e1afe6d5c16975ca5d7d1fc324b16f9.tar.xz linux-dev-f77c80142e1afe6d5c16975ca5d7d1fc324b16f9.zip | |
bury struct proc_ns in fs/proc
a) make get_proc_ns() return a pointer to struct ns_common
b) mirror ns_ops in dentry->d_fsdata of ns dentries, so that
is_mnt_ns_file() could get away with fewer dereferences.
That way struct proc_ns becomes invisible outside of fs/proc/*.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '')
| -rw-r--r-- | fs/proc/namespaces.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c index 995e8e98237d..18fc1cf899de 100644 --- a/fs/proc/namespaces.c +++ b/fs/proc/namespaces.c @@ -45,7 +45,7 @@ static const struct inode_operations ns_inode_operations = { static char *ns_dname(struct dentry *dentry, char *buffer, int buflen) { struct inode *inode = dentry->d_inode; - const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns.ns_ops; + const struct proc_ns_operations *ns_ops = dentry->d_fsdata; return dynamic_dname(dentry, buffer, buflen, "%s:[%lu]", ns_ops->name, inode->i_ino); @@ -75,6 +75,7 @@ static struct dentry *proc_ns_get_dentry(struct super_block *sb, ns_ops->put(ns); return ERR_PTR(-ENOMEM); } + dentry->d_fsdata = (void *)ns_ops; inode = iget_locked(sb, ns->inum); if (!inode) { @@ -286,9 +287,9 @@ out_invalid: return ERR_PTR(-EINVAL); } -struct proc_ns *get_proc_ns(struct inode *inode) +struct ns_common *get_proc_ns(struct inode *inode) { - return &PROC_I(inode)->ns; + return PROC_I(inode)->ns.ns; } bool proc_ns_inode(struct inode *inode) |