From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Layton Subject: [PATCH v6 06/20] vfs: fix mkdir to retry on ESTALE errors Date: Fri, 7 Sep 2012 10:18:13 -0400 Message-ID: <1347027507-20956-7-git-send-email-jlayton@redhat.com> References: <1347027507-20956-1-git-send-email-jlayton@redhat.com> Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, michael.brantley@deshaw.com, hch@infradead.org, miklos@szeredi.hu, pstaubach@exagrid.com To: viro@ZenIV.linux.org.uk Return-path: In-Reply-To: <1347027507-20956-1-git-send-email-jlayton@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Jeff Layton --- fs/namei.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 11fc388..9068375 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3249,17 +3249,20 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) struct dentry *dentry; struct path path; int error; + unsigned int try = 0; - dentry = user_path_create(dfd, pathname, &path, true, false); - if (IS_ERR(dentry)) - return PTR_ERR(dentry); + do { + dentry = user_path_create(dfd, pathname, &path, true, false); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) - mode &= ~current_umask(); - error = security_path_mkdir(&path, dentry, mode); - if (!error) - error = vfs_mkdir(path.dentry->d_inode, dentry, mode); - done_path_create(&path, dentry); + if (!IS_POSIXACL(path.dentry->d_inode)) + mode &= ~current_umask(); + error = security_path_mkdir(&path, dentry, mode); + if (!error) + error = vfs_mkdir(path.dentry->d_inode, dentry, mode); + done_path_create(&path, dentry); + } while (retry_estale(error, try++)); return error; } -- 1.7.11.4