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From: Ian Kent <raven@themaw.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: autofs mailing list <autofs@vger.kernel.org>,
	Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Omar Sandoval <osandov@osandov.com>,
	Al Viro <viro@ZenIV.linux.org.uk>
Subject: [PATCH 8/8] vfs - remove unused have_submounts() function
Date: Tue, 11 Oct 2016 13:34:28 +0800
Message-ID: <20161011053428.27645.12310.stgit@pluto.themaw.net> (raw)
In-Reply-To: <20161011053352.27645.83962.stgit@pluto.themaw.net>

Now that path_has_submounts() has been added have_submounts() is no
longer used so remove it.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Omar Sandoval <osandov@osandov.com>
---
 fs/dcache.c            |   33 ---------------------------------
 include/linux/dcache.h |    1 -
 2 files changed, 34 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 872f04e..719d8b4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1273,39 +1273,6 @@ static void d_walk(struct dentry *parent, void *data,
 	goto again;
 }
 
-/*
- * Search for at least 1 mount point in the dentry's subdirs.
- * We descend to the next level whenever the d_subdirs
- * list is non-empty and continue searching.
- */
-
-static enum d_walk_ret check_mount(void *data, struct dentry *dentry)
-{
-	int *ret = data;
-	if (d_mountpoint(dentry)) {
-		*ret = 1;
-		return D_WALK_QUIT;
-	}
-	return D_WALK_CONTINUE;
-}
-
-/**
- * have_submounts - check for mounts over a dentry
- * @parent: dentry to check.
- *
- * Return true if the parent or its subdirectories contain
- * a mount point
- */
-int have_submounts(struct dentry *parent)
-{
-	int ret = 0;
-
-	d_walk(parent, &ret, check_mount, NULL);
-
-	return ret;
-}
-EXPORT_SYMBOL(have_submounts);
-
 struct check_mount {
 	struct vfsmount *mnt;
 	unsigned int mounted;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index e351646..44a9a9b 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -254,7 +254,6 @@ extern struct dentry *d_find_alias(struct inode *);
 extern void d_prune_aliases(struct inode *);
 
 /* test whether we have any submounts in a subdir tree */
-extern int have_submounts(struct dentry *);
 extern int path_has_submounts(struct path *);
 
 /*


  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-11  5:33 [PATCH 1/8] vfs - change d_manage() to take a struct path Ian Kent
2016-10-11  5:33 ` [PATCH 2/8] vfs - add path_is_mountpoint() helper Ian Kent
2016-10-11  5:34 ` [PATCH 3/8] vfs - add path_has_submounts() Ian Kent
2016-10-11  5:34 ` [PATCH 4/8] autofs - change autofs4_expire_wait() to take struct path Ian Kent
2016-10-11  5:34 ` [PATCH 5/8] autofs - change autofs4_wait() " Ian Kent
2016-10-11  5:34 ` [PATCH 6/8] autofs - use path_is_mountpoint() to fix unreliable d_mountpoint() checks Ian Kent
2016-10-27  2:17   ` Al Viro
2016-10-27  2:51     ` Ian Kent
2016-10-11  5:34 ` [PATCH 7/8] autofs - use path_has_submounts() to fix unreliable have_submount() checks Ian Kent
2016-10-11  5:34 ` Ian Kent [this message]
2016-10-11 16:04 ` [PATCH 1/8] vfs - change d_manage() to take a struct path Eric W. Biederman
2016-10-11 23:47   ` Ian Kent
2016-10-19 19:40 ` Andrew Morton
2016-10-20 23:39   ` Ian Kent
2016-10-27  2:11     ` Al Viro
2016-10-27  2:47       ` Ian Kent
2016-10-27  6:50         ` Ian Kent
2016-11-01  2:02           ` Ian Kent

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