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Date: Fri, 09 Feb 2007 14:53:34 -0800 From: Dave Hansen <hansendc@...ibm.com> To: linux-kernel@...r.kernel.org Cc: akpm@...l.org, hch@...radead.org, Dave Hansen <hansendc@...ibm.com> Subject: [PATCH 07/22] elevate write count for link and symlink calls Signed-off-by: Dave Hansen <haveblue@...ibm.com> --- lxc-dave/fs/namei.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff -puN fs/namei.c~09-24-elevate-write-count-for-link-and-symlink-calls fs/namei.c --- lxc/fs/namei.c~09-24-elevate-write-count-for-link-and-symlink-calls 2007-02-09 14:26:50.000000000 -0800 +++ lxc-dave/fs/namei.c 2007-02-09 14:26:50.000000000 -0800 @@ -2236,7 +2236,12 @@ asmlinkage long sys_symlinkat(const char if (IS_ERR(dentry)) goto out_unlock; + error = mnt_want_write(nd.mnt); + if (error) + goto out_dput; error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO); + mnt_drop_write(nd.mnt); +out_dput: dput(dentry); out_unlock: mutex_unlock(&nd.dentry->d_inode->i_mutex); @@ -2331,7 +2336,12 @@ 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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