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Message-ID: <20090204043732.GC26202@us.ibm.com>
Date: Tue, 3 Feb 2009 20:37:32 -0800
From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To: Alan Cox <alan@...rguk.ukuu.org.uk>, hpa@...or.com, hch@....de
Cc: serue@...ibm.com, sukadev@...ibm.com,
Containers <containers@...ts.osdl.org>,
linux-kernel@...r.kernel.org
Subject: [v2][PATCH 3/5] Move common mknod_ptmx() calls into caller
From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Date: Wed, 28 Jan 2009 18:54:25 -0800
Subject: [v2][PATCH 3/5] Move common mknod_ptmx() calls into caller
We create 'ptmx' node in both single-instance and multiple-instance
mounts. So devpts_get_sb() can call mknod_ptmx() once rather than
have both modes calling mknod_ptmx() separately.
Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
---
fs/devpts/inode.c | 36 +++++++++++++++++-------------------
1 files changed, 17 insertions(+), 19 deletions(-)
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 9b24de8..f7e887c 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -343,17 +343,7 @@ static int new_pts_mount(struct file_system_type *fs_type, int flags,
fsi = DEVPTS_SB(mnt->mnt_sb);
memcpy(&fsi->mount_opts, opts, sizeof(opts));
- err = mknod_ptmx(mnt->mnt_sb);
- if (err)
- goto fail;
-
return 0;
-
-fail:
- dput(mnt->mnt_sb->s_root);
- up_write(&mnt->mnt_sb->s_umount);
- deactivate_super(mnt->mnt_sb);
- return err;
}
/*
@@ -421,13 +411,6 @@ static int init_pts_mount(struct file_system_type *fs_type, int flags,
if (err)
return err;
- err = mknod_ptmx(mnt->mnt_sb);
- if (err) {
- dput(mnt->mnt_sb->s_root);
- up_write(&mnt->mnt_sb->s_umount);
- deactivate_super(mnt->mnt_sb);
- }
-
return err;
}
@@ -445,9 +428,24 @@ static int devpts_get_sb(struct file_system_type *fs_type,
}
if (opts.newinstance)
- return new_pts_mount(fs_type, flags, data, &opts, mnt);
+ error = new_pts_mount(fs_type, flags, data, &opts, mnt);
else
- return init_pts_mount(fs_type, flags, data, &opts, mnt);
+ error = init_pts_mount(fs_type, flags, data, &opts, mnt);
+
+ if (error)
+ return error;
+
+ error = mknod_ptmx(mnt->mnt_sb);
+ if (error)
+ goto out_dput;
+
+ return 0;
+
+out_dput:
+ dput(mnt->mnt_sb->s_root);
+ up_write(&mnt->mnt_sb->s_umount);
+ deactivate_super(mnt->mnt_sb);
+ return error;
}
#else
--
1.5.2.5
--
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