[PATCH v6 04/15] ceph: pass an idmapping to mknod/symlink/mkdir/rename

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From: Christian Brauner <christian.brauner@xxxxxxxxxx>

Enable mknod/symlink/mkdir/rename iops to handle idmapped mounts.
This is just a matter of passing down the mount's idmapping.

Cc: Xiubo Li <xiubli@xxxxxxxxxx>
Cc: Jeff Layton <jlayton@xxxxxxxxxx>
Cc: Ilya Dryomov <idryomov@xxxxxxxxx>
Cc: ceph-devel@xxxxxxxxxxxxxxx
Signed-off-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@xxxxxxxxxxxxx>
---
v4:
	- call mnt_idmap_get
---
 fs/ceph/dir.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 1b46f2b998c3..2c0c2c98085b 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -923,6 +923,7 @@ static int ceph_mknod(struct mnt_idmap *idmap, struct inode *dir,
 	req->r_parent = dir;
 	ihold(dir);
 	set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
+	req->r_mnt_idmap = mnt_idmap_get(idmap);
 	req->r_args.mknod.mode = cpu_to_le32(mode);
 	req->r_args.mknod.rdev = cpu_to_le32(rdev);
 	req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL | CEPH_CAP_XATTR_EXCL;
@@ -1035,6 +1036,7 @@ static int ceph_symlink(struct mnt_idmap *idmap, struct inode *dir,
 	}
 
 	set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
+	req->r_mnt_idmap = mnt_idmap_get(idmap);
 	req->r_dentry = dget(dentry);
 	req->r_num_caps = 2;
 	req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL | CEPH_CAP_XATTR_EXCL;
@@ -1111,6 +1113,7 @@ static int ceph_mkdir(struct mnt_idmap *idmap, struct inode *dir,
 	req->r_parent = dir;
 	ihold(dir);
 	set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
+	req->r_mnt_idmap = mnt_idmap_get(idmap);
 	req->r_args.mkdir.mode = cpu_to_le32(mode);
 	req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL | CEPH_CAP_XATTR_EXCL;
 	req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
@@ -1422,6 +1425,7 @@ static int ceph_rename(struct mnt_idmap *idmap, struct inode *old_dir,
 	req->r_old_dentry_unless = CEPH_CAP_FILE_EXCL;
 	req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_XATTR_EXCL;
 	req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
+	req->r_mnt_idmap = mnt_idmap_get(idmap);
 	/* release LINK_RDCACHE on source inode (mds will lock it) */
 	req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
 	if (d_really_is_positive(new_dentry)) {
-- 
2.34.1




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