| Fix build errors with linux kernel v3.19 and above |
| |
| Below errors came up while building iscsitarget for |
| qemux86-64 (and others) because, |
| 1. 'struct user_msghdr' is being used for userland-side msghdr instead |
| of 'struct msghdr', which is used for kernel-side msghdr in linux v3.19 |
| and above. |
| |
| error snippet: |
| -- snip -- |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/iscsi.c: In function 'cmnd_skip_pdu': |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/iscsi.c:492:16: error: 'struct msghdr' has no member named 'msg_iov' |
| | conn->read_msg.msg_iov = conn->read_iov; |
| -- CUT -- |
| |
| Reference: |
| https://github.com/torvalds/linux/commit/666547ff591cebdedc4679bf6b1b3f3383a8dea3 |
| |
| 2. 'SERVICE_ACTION_IN' has been renamed to SERVICE_ACTION_IN_16 in linux v3.19 |
| and above. |
| |
| error snippet: |
| -- snip -- |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/iscsi.c: In function 'scsi_cmnd_start': |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/iscsi.c:989:7: error: 'SERVICE_ACTION_IN' undeclared (first use in this function) |
| | case SERVICE_ACTION_IN: |
| -- CUT -- |
| |
| Reference: |
| https://github.com/torvalds/linux/commit/eb846d9f147455e4e5e1863bfb5e31974bb69b7c |
| |
| 3. In linux v3.19 and above, f_dentry member has been removed from |
| 'struct file' structure. |
| |
| error snippet: |
| -- snip -- |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/conn.c: In function 'iet_socket_bind': |
| | /CGE7_SHDD/project_yocto_1.8/poky/build/tmp/work/qemux86_64-poky-linux/iscsitarget/1.4.20.3+svn502-r0/iscsitarget-1.4.20.3+svn502/kernel/conn.c:130:34: error: 'struct file' has no member named 'f_dentry' |
| | conn->sock = SOCKET_I(conn->file->f_dentry->d_inode); |
| -- CUT -- |
| |
| new helper function file_inode(file) should be used instead. |
| |
| References: |
| 1. https://github.com/torvalds/linux/commit/78d28e651f97866d608d9b41f8ad291e65d47dd5 |
| 2. https://github.com/torvalds/linux/commit/496ad9aa8ef448058e36ca7a787c61f2e63f0f54 |
| |
| Upstream-Status: Pending |
| |
| Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com> |
| |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/conn.c 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/conn.c 2015-08-24 17:27:06.897653698 +0530 |
| @@ -127,7 +127,11 @@ static void iet_socket_bind(struct iscsi |
| |
| dprintk(D_GENERIC, "%llu\n", (unsigned long long) session->sid); |
| |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + conn->sock = SOCKET_I(file_inode(conn->file)); |
| +#else |
| conn->sock = SOCKET_I(conn->file->f_dentry->d_inode); |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| conn->sock->sk->sk_user_data = conn; |
| |
| write_lock_bh(&conn->sock->sk->sk_callback_lock); |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/file-io.c 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/file-io.c 2015-08-24 17:30:54.390131100 +0530 |
| @@ -69,7 +69,11 @@ static int fileio_make_request(struct ie |
| static int fileio_sync(struct iet_volume *lu, struct tio *tio) |
| { |
| struct fileio_data *p = lu->private; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + struct inode *inode = file_inode(p->filp); |
| +#else |
| struct inode *inode = p->filp->f_dentry->d_inode; |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| struct address_space *mapping = inode->i_mapping; |
| loff_t ppos, count; |
| int res; |
| @@ -213,7 +217,11 @@ static int fileio_attach(struct iet_volu |
| eprintk("%d\n", err); |
| goto out; |
| } |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + inode = file_inode(p->filp); |
| +#else |
| inode = p->filp->f_dentry->d_inode; |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| |
| if (S_ISREG(inode->i_mode)) |
| ; |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/iscsi.c 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/iscsi.c 2015-08-24 17:33:50.950490156 +0530 |
| @@ -986,7 +986,11 @@ static void scsi_cmnd_start(struct iscsi |
| set_cmnd_lunit(req); |
| |
| switch (req_hdr->scb[0]) { |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + case SERVICE_ACTION_IN_16: |
| +#else |
| case SERVICE_ACTION_IN: |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| if ((req_hdr->scb[1] & 0x1f) != 0x10) |
| goto error; |
| case INQUIRY: |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/iscsi.h 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/iscsi.h 2015-08-24 17:35:31.354690051 +0530 |
| @@ -257,7 +257,11 @@ struct iscsi_conn { |
| struct timer_list nop_timer; |
| |
| struct iscsi_cmnd *read_cmnd; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + struct user_msghdr read_msg; |
| +#else |
| struct msghdr read_msg; |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| struct iovec read_iov[ISCSI_CONN_IOV_MAX]; |
| u32 read_size; |
| u32 read_overflow; |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/nthread.c 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/nthread.c 2015-08-24 17:41:56.187428925 +0530 |
| @@ -80,8 +80,11 @@ static int is_data_available(struct iscs |
| set_fs(oldfs); |
| return (res >= 0) ? avail : res; |
| } |
| - |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| +static void forward_iov(struct user_msghdr *msg, int len) |
| +#else |
| static void forward_iov(struct msghdr *msg, int len) |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| { |
| while (msg->msg_iov->iov_len <= len) { |
| len -= msg->msg_iov->iov_len; |
| @@ -96,7 +99,11 @@ static void forward_iov(struct msghdr *m |
| static int do_recv(struct iscsi_conn *conn, int state) |
| { |
| mm_segment_t oldfs; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + struct user_msghdr msg; |
| +#else |
| struct msghdr msg; |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| struct iovec iov[ISCSI_CONN_IOV_MAX]; |
| int i, len, res; |
| |
| @@ -461,7 +468,11 @@ static void exit_tx(struct iscsi_conn *c |
| static int tx_ddigest(struct iscsi_cmnd *cmnd, int state) |
| { |
| int res, rest = cmnd->conn->write_size; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + struct user_msghdr msg = {.msg_flags = MSG_NOSIGNAL | MSG_DONTWAIT}; |
| +#else |
| struct msghdr msg = {.msg_flags = MSG_NOSIGNAL | MSG_DONTWAIT}; |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| struct kvec iov; |
| |
| iov.iov_base = (char *) (&cmnd->ddigest) + (sizeof(u32) - rest); |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/target_disk.c 2015-08-24 16:13:26.481924679 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/target_disk.c 2015-08-24 17:43:42.167625159 +0530 |
| @@ -606,7 +606,11 @@ static int disk_execute_cmnd(struct iscs |
| case REQUEST_SENSE: |
| send_data_rsp(cmnd, build_request_sense_response); |
| break; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + case SERVICE_ACTION_IN_16: |
| +#else |
| case SERVICE_ACTION_IN: |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| send_data_rsp(cmnd, build_service_action_in_response); |
| break; |
| case READ_6: |
| --- iscsitarget-1.4.20.3+svn502_org/kernel/volume.c 2015-08-24 16:13:26.477924674 +0530 |
| +++ iscsitarget-1.4.20.3+svn502/kernel/volume.c 2015-08-24 18:28:15.697074780 +0530 |
| @@ -398,7 +398,11 @@ int is_volume_reserved(struct iet_volume |
| case READ_CAPACITY: |
| /* allowed commands when reserved */ |
| break; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + case SERVICE_ACTION_IN_16: |
| +#else |
| case SERVICE_ACTION_IN: |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| if ((scb[1] & 0x1F) == 0x10) |
| break; |
| /* fall through */ |
| @@ -465,7 +469,11 @@ int is_volume_reserved(struct iet_volume |
| if (excl_access_ro && !registered) |
| err = -EBUSY; |
| break; |
| +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) |
| + case SERVICE_ACTION_IN_16: |
| +#else |
| case SERVICE_ACTION_IN: |
| +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) */ |
| if ((scb[1] & 0x1F) == 0x10) |
| break; |
| /* fall through */ |