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Message-Id: <20060801235252.777964C5@localhost.localdomain> Date: Tue, 01 Aug 2006 16:52:52 -0700 From: Dave Hansen <haveblue@...ibm.com> To: linux-kernel@...r.kernel.org Cc: viro@....linux.org.uk, herbert@...hfloor.at, hch@...radead.org, Dave Hansen <haveblue@...ibm.com> Subject: [PATCH 16/28] sys_linkat(): elevate write count around vfs_link() Signed-off-by: Dave Hansen <haveblue@...ibm.com> --- lxc-dave/fs/namei.c | 5 +++++ 1 files changed, 5 insertions(+) diff -puN fs/namei.c~C-elevate-writers-vfs_link-part1 fs/namei.c --- lxc/fs/namei.c~C-elevate-writers-vfs_link-part1 2006-08-01 16:35:24.000000000 -0700 +++ lxc-dave/fs/namei.c 2006-08-01 16:35:25.000000000 -0700 @@ -2326,7 +2326,12 @@ asmlinkage long sys_linkat(int olddfd, c error = PTR_ERR(new_dentry); if (IS_ERR(new_dentry)) goto out_unlock; + error = mnt_want_write(nd.mnt); + if (error) + goto out_dput; error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry); + mnt_drop_write(nd.mnt); +out_dput: dput(new_dentry); out_unlock: mutex_unlock(&nd.dentry->d_inode->i_mutex); _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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