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ovl: Get rid of ovl_xattr_noacl_handlers array

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Use an ordinary #ifdef to conditionally include the POSIX ACL handlers
in ovl_xattr_handlers, like the other filesystems do.  Flag the code
that is now only used conditionally with __maybe_unused.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2016-08-22 16:36:49 +02:00 committed by Miklos Szeredi
parent fe2b759523
commit 0c97be22f9
1 changed files with 12 additions and 16 deletions
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28
fs/overlayfs/super.c
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@ -986,10 +986,11 @@ static unsigned int ovl_split_lowerdirs(char *str)
return ctr;
}
static int ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value,
size_t size, int flags)
static int __maybe_unused
ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value,
size_t size, int flags)
{
struct dentry *workdir = ovl_workdir(dentry);
struct inode *realinode = ovl_inode_real(inode, NULL);
@ -1040,13 +1041,15 @@ static int ovl_own_xattr_set(const struct xattr_handler *handler,
return -EPERM;
}
static const struct xattr_handler ovl_posix_acl_access_xattr_handler = {
static const struct xattr_handler __maybe_unused
ovl_posix_acl_access_xattr_handler = {
.name = XATTR_NAME_POSIX_ACL_ACCESS,
.flags = ACL_TYPE_ACCESS,
.set = ovl_posix_acl_xattr_set,
};
static const struct xattr_handler ovl_posix_acl_default_xattr_handler = {
static const struct xattr_handler __maybe_unused
ovl_posix_acl_default_xattr_handler = {
.name = XATTR_NAME_POSIX_ACL_DEFAULT,
.flags = ACL_TYPE_DEFAULT,
.set = ovl_posix_acl_xattr_set,
@ -1063,19 +1066,15 @@ static const struct xattr_handler ovl_other_xattr_handler = {
};
static const struct xattr_handler *ovl_xattr_handlers[] = {
#ifdef CONFIG_FS_POSIX_ACL
&ovl_posix_acl_access_xattr_handler,
&ovl_posix_acl_default_xattr_handler,
#endif
&ovl_own_xattr_handler,
&ovl_other_xattr_handler,
NULL
};
static const struct xattr_handler *ovl_xattr_noacl_handlers[] = {
&ovl_own_xattr_handler,
&ovl_other_xattr_handler,
NULL,
};
static int ovl_fill_super(struct super_block *sb, void *data, int silent)
{
struct path upperpath = { NULL, NULL };
@ -1288,10 +1287,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
sb->s_magic = OVERLAYFS_SUPER_MAGIC;
sb->s_op = &ovl_super_operations;
if (IS_ENABLED(CONFIG_FS_POSIX_ACL))
sb->s_xattr = ovl_xattr_handlers;
else
sb->s_xattr = ovl_xattr_noacl_handlers;
sb->s_xattr = ovl_xattr_handlers;
sb->s_root = root_dentry;
sb->s_fs_info = ufs;
sb->s_flags |= MS_POSIXACL;