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vfs: Kill sget_userns() 

Kill sget_userns(), folding it into sget() as that's the only remaining
user.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-fsdevel@vger.kernel.org
This commit is contained in:
David Howells 2019-03-25 16:38:28 +00:00 committed by Al Viro
parent db2c246a09
commit 023d066a0d
2 changed files with 16 additions and 43 deletions
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54
fs/super.c
View File

@ -563,24 +563,31 @@ share_extant_sb:
EXPORT_SYMBOL(sget_fc);
/**
* sget_userns - find or create a superblock
* @type: filesystem type superblock should belong to
* @test: comparison callback
* @set: setup callback
* @flags: mount flags
* @user_ns: User namespace for the super_block
* @data: argument to each of them
* sget - find or create a superblock
* @type: filesystem type superblock should belong to
* @test: comparison callback
* @set: setup callback
* @flags: mount flags
* @data: argument to each of them
*/
struct super_block *sget_userns(struct file_system_type *type,
struct super_block *sget(struct file_system_type *type,
int (*test)(struct super_block *,void *),
int (*set)(struct super_block *,void *),
int flags, struct user_namespace *user_ns,
int flags,
void *data)
{
struct user_namespace *user_ns = current_user_ns();
struct super_block *s = NULL;
struct super_block *old;
int err;
/* We don't yet pass the user namespace of the parent
* mount through to here so always use &init_user_ns
* until that changes.
*/
if (flags & SB_SUBMOUNT)
user_ns = &init_user_ns;
retry:
spin_lock(&sb_lock);
if (test) {
@ -621,35 +628,6 @@ retry:
register_shrinker_prepared(&s->s_shrink);
return s;
}
EXPORT_SYMBOL(sget_userns);
/**
* sget - find or create a superblock
* @type: filesystem type superblock should belong to
* @test: comparison callback
* @set: setup callback
* @flags: mount flags
* @data: argument to each of them
*/
struct super_block *sget(struct file_system_type *type,
int (*test)(struct super_block *,void *),
int (*set)(struct super_block *,void *),
int flags,
void *data)
{
struct user_namespace *user_ns = current_user_ns();
/* We don't yet pass the user namespace of the parent
* mount through to here so always use &init_user_ns
* until that changes.
*/
if (flags & SB_SUBMOUNT)
user_ns = &init_user_ns;
return sget_userns(type, test, set, flags, user_ns, data);
}
EXPORT_SYMBOL(sget);
void drop_super(struct super_block *sb)

5
include/linux/fs.h
View File

@ -2245,11 +2245,6 @@ void free_anon_bdev(dev_t);
struct super_block *sget_fc(struct fs_context *fc,
int (*test)(struct super_block *, struct fs_context *),
int (*set)(struct super_block *, struct fs_context *));
struct super_block *sget_userns(struct file_system_type *type,
int (*test)(struct super_block *,void *),
int (*set)(struct super_block *,void *),
int flags, struct user_namespace *user_ns,
void *data);
struct super_block *sget(struct file_system_type *type,
int (*test)(struct super_block *,void *),
int (*set)(struct super_block *,void *),