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mount_pseudo(): drop 'name' argument, switch to d_make_root()

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Once upon a time we used to set ->d_name of e.g. pipefs root
so that d_path() on pipes would work.  These days it's
completely pointless - dentries of pipes are not even connected
to pipefs root.  However, mount_pseudo() had set the root
dentry name (passed as the second argument) and callers
kept inventing names to pass to it.  Including those that
didn't *have* any non-root dentries to start with...

All of that had been pointless for about 8 years now; it's
time to get rid of that cargo-culting...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-05-20 13:44:57 +01:00
parent 1a6e9e76b7
commit 1f58bb18f6
17 changed files with 22 additions and 36 deletions
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2
fs/pipe.c
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@ -1185,7 +1185,7 @@ static const struct super_operations pipefs_ops = {
static struct dentry *pipefs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
return mount_pseudo(fs_type, "pipe:", &pipefs_ops,
return mount_pseudo(fs_type, &pipefs_ops,
&pipefs_dentry_operations, PIPEFS_MAGIC);
}