Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "A couple of bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: add CPU_BIG_ENDIAN config option s390/spinlock: avoid yield to non existent cpu s390/dcssblk: fix possible deadlock in remove vs. per-device attributes s390/seccomp: include generic seccomp header file s390/pci: add extra padding to function measurement block s390/scm_blk: fix deadlock for requests != REQ_TYPE_FS
mariux64 · Apr 18, 2016 · 95d0c42 · 95d0c42
2 parents c3b46c7 + 2fd9227
commit 95d0c42
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Showing 6 changed files with 12 additions and 4 deletions.
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
@@ -4,6 +4,9 @@ config MMU
 config ZONE_DMA
 	def_bool y
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config LOCKDEP_SUPPORT
 	def_bool y
 

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
@@ -44,7 +44,8 @@ struct zpci_fmb {
 	u64 rpcit_ops;
 	u64 dma_rbytes;
 	u64 dma_wbytes;
-} __packed __aligned(64);
+	u64 pad[2];
+} __packed __aligned(128);
 
 enum zpci_state {
 	ZPCI_FN_STATE_RESERVED,

diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
@@ -13,4 +13,6 @@
 #define __NR_seccomp_exit_32	__NR_exit
 #define __NR_seccomp_sigreturn_32 __NR_sigreturn
 
+#include <asm-generic/seccomp.h>
+
 #endif	/* _ASM_S390_SECCOMP_H */
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
@@ -105,6 +105,7 @@ void arch_spin_lock_wait_flags(arch_spinlock_t *lp, unsigned long flags)
 			if (_raw_compare_and_swap(&lp->lock, 0, cpu))
 				return;
 			local_irq_restore(flags);
+			continue;
 		}
 		/* Check if the lock owner is running. */
 		if (first_diag && cpu_is_preempted(~owner)) {

diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
@@ -756,15 +756,16 @@ dcssblk_remove_store(struct device *dev, struct device_attribute *attr, const ch
 	blk_cleanup_queue(dev_info->dcssblk_queue);
 	dev_info->gd->queue = NULL;
 	put_disk(dev_info->gd);
-	device_unregister(&dev_info->dev);
 
 	/* unload all related segments */
 	list_for_each_entry(entry, &dev_info->seg_list, lh)
 		segment_unload(entry->segment_name);
 
-	put_device(&dev_info->dev);
 	up_write(&dcssblk_devices_sem);
 
+	device_unregister(&dev_info->dev);
+	put_device(&dev_info->dev);
+
 	rc = count;
 out_buf:
 	kfree(local_buf);

diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
@@ -303,7 +303,7 @@ static void scm_blk_request(struct request_queue *rq)
 		if (req->cmd_type != REQ_TYPE_FS) {
 			blk_start_request(req);
 			blk_dump_rq_flags(req, KMSG_COMPONENT " bad request");
-			blk_end_request_all(req, -EIO);
+			__blk_end_request_all(req, -EIO);
 			continue;
 		}