Messages in this thread Patch in this message | | | Subject | [PATCH 15/27] r-o-bind-mounts-elevate-write-count-for-link-and-symlink-calls | From | Dave Hansen <> | Date | Thu, 01 Nov 2007 16:08:46 -0700 |
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Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> ---
linux-2.6.git-dave/fs/namei.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff -puN fs/namei.c~r-o-bind-mounts-elevate-write-count-for-link-and-symlink-calls fs/namei.c --- linux-2.6.git/fs/namei.c~r-o-bind-mounts-elevate-write-count-for-link-and-symlink-calls 2007-11-01 14:46:14.000000000 -0700 +++ linux-2.6.git-dave/fs/namei.c 2007-11-01 14:46:14.000000000 -0700 @@ -2349,7 +2349,12 @@ 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); @@ -2444,7 +2449,12 @@ 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@vger.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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