LU-13119 osd-ldiskfs: set f_cred for app armour

The function interate_dir() interfaces with the security layer.
For some kernel versions on platforms that use app armour it
expects f_cred to be set. Currently osd-ldiskfs open codes the
creation of struct file so it is missing a cred. Fix this by
setting f_cred to the default current_cred().

Test-Parameters: testlist=sanity-lfsck serverdistro=sles12sp3

Change-Id: I38487e8ae99a0f70d6e430935b7d19523d414b4b
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/37184
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: Li Dongyang <dongyangli@ddn.com>

diff --git a/lustre/osd-ldiskfs/osd_handler.c b/lustre/osd-ldiskfs/osd_handler.c
index 466da64..1b71fc6 100644 (file)
--- a/lustre/osd-ldiskfs/osd_handler.c
+++ b/lustre/osd-ldiskfs/osd_handler.c
@@ -1012,6 +1012,7 @@ again:
        filp->f_mapping = inode->i_mapping;
        filp->f_op = fops;
        filp->private_data = NULL;
        filp->f_mapping = inode->i_mapping;
        filp->f_op = fops;
        filp->private_data = NULL;

+       filp->f_cred = current_cred();

        set_file_inode(filp, inode);
        rc = osd_security_file_alloc(filp);
        if (rc)
        set_file_inode(filp, inode);
        rc = osd_security_file_alloc(filp);
        if (rc)


@@ -6621,6 +6622,7 @@ static int osd_ldiskfs_it_fill(const struct lu_env *env,
                down_read(&obj->oo_ext_idx_sem);
        }
 
                down_read(&obj->oo_ext_idx_sem);
        }
 

+       filp->f_cred = current_cred();

        rc = osd_security_file_alloc(filp);
        if (rc)
                RETURN(rc);
        rc = osd_security_file_alloc(filp);
        if (rc)
                RETURN(rc);

diff --git a/lustre/osd-ldiskfs/osd_scrub.c b/lustre/osd-ldiskfs/osd_scrub.c
index b692261..63c295b 100644 (file)
--- a/lustre/osd-ldiskfs/osd_scrub.c
+++ b/lustre/osd-ldiskfs/osd_scrub.c
@@ -2263,6 +2263,7 @@ osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
        filp->f_mapping = inode->i_mapping;
        filp->f_op = fops;
        filp->private_data = NULL;
        filp->f_mapping = inode->i_mapping;
        filp->f_op = fops;
        filp->private_data = NULL;

+       filp->f_cred = current_cred();

        set_file_inode(filp, inode);
        rc = osd_security_file_alloc(filp);
        if (rc)
        set_file_inode(filp, inode);
        rc = osd_security_file_alloc(filp);
        if (rc)