From: Herbert Poetzl <herbert@13thfloor.at>
To: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
Christoph Hellwig <hch@infradead.org>,
Al Viro <viro@ftp.linux.org.uk>,
Linux Kernel ML <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/6] vfs: propagate mnt_flags into do_loopback/vfsmount
Date: Sat, 21 Jan 2006 09:40:55 +0100 [thread overview]
Message-ID: <20060121084055.GC10044@MAIL.13thfloor.at> (raw)
In-Reply-To: <20060121083843.GA10044@MAIL.13thfloor.at>
;
; Bind Mount Extensions
;
; Copyright (C) 2003-2006 Herbert Pötzl <herbert@13thfloor.at>
;
; the mnt_flags are propagated into do_loopback(), so that
; they can be stored with the vfsmount
;
;
; Changelog:
;
; 0.01 - broken out from bm0.01
;
Signed-off-by: Herbert Pötzl <herbert@13thfloor.at>
diff -NurpP --minimal linux-2.6.16-rc1/fs/namespace.c linux-2.6.16-rc1-bme0.06.2-lo0.01/fs/namespace.c
--- linux-2.6.16-rc1/fs/namespace.c 2006-01-18 06:08:30 +0100
+++ linux-2.6.16-rc1-bme0.06.2-lo0.01/fs/namespace.c 2006-01-21 09:08:29 +0100
@@ -861,11 +861,13 @@ static int do_change_type(struct nameida
/*
* do loopback mount.
*/
-static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
+static int do_loopback(struct nameidata *nd, char *old_name, unsigned long flags, int mnt_flags)
{
struct nameidata old_nd;
struct vfsmount *mnt = NULL;
+ int recurse = flags & MS_REC;
int err = mount_is_safe(nd);
+
if (err)
return err;
if (!old_name || !*old_name)
@@ -899,6 +901,7 @@ static int do_loopback(struct nameidata
spin_unlock(&vfsmount_lock);
release_mounts(&umount_list);
}
+ mnt->mnt_flags = mnt_flags;
out:
up_write(&namespace_sem);
@@ -1312,7 +1315,7 @@ long do_mount(char *dev_name, char *dir_
retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
data_page);
else if (flags & MS_BIND)
- retval = do_loopback(&nd, dev_name, flags & MS_REC);
+ retval = do_loopback(&nd, dev_name, flags, mnt_flags);
else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
retval = do_change_type(&nd, flags);
else if (flags & MS_MOVE)
next prev parent reply other threads:[~2006-01-21 8:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-21 8:38 [PATCH 0/6] vfs: extend loopback (bind) mounts by mnt_flags Herbert Poetzl
2006-01-21 8:40 ` [PATCH 1/6] vfs: add missing MNT_RDONLY and macro to check Herbert Poetzl
2006-01-21 8:40 ` Herbert Poetzl [this message]
2006-01-22 10:06 ` [PATCH 2/6] vfs: propagate mnt_flags into do_loopback/vfsmount Suleiman Souhlal
2006-01-22 10:59 ` Suleiman Souhlal
2006-01-24 19:02 ` Christoph Hellwig
2006-01-26 21:04 ` Herbert Poetzl
2006-01-27 20:03 ` Herbert Poetzl
2006-04-01 17:02 ` Christoph Hellwig
2006-01-21 8:41 ` [PATCH 3/6] vfs: propagate vfsmount into chown_common() Herbert Poetzl
2006-01-21 8:42 ` [PATCH 4/6] vfs: propagate the nameidata into the relevant vfs_*() Herbert Poetzl
2006-01-21 8:43 ` [PATCH 5/6] vfs: propagate the vfsmount into *xattr() Herbert Poetzl
2006-01-21 8:43 ` [PATCH 6/6] vfs: extend IS_RDONLY() checks to MNT_IS_RDONLY() Herbert Poetzl
2006-01-24 19:06 ` [PATCH 0/6] vfs: extend loopback (bind) mounts by mnt_flags Christoph Hellwig
2006-01-26 21:08 ` Herbert Poetzl
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