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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 04:42:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 04:42:32 +0300
commitb3d6524ff7956c5a898d51a18eaecb62a60a2b84 (patch)
treecc049e7ec9edd9f5a76f286e04d8db9a1caa516a /drivers/s390/block/dcssblk.c
parent07f80d41cf24b7e6e76cd97d420167932c9a7f82 (diff)
parent6a039eab53c01a58bfff95c78fc800ca7de27c77 (diff)
downloadlinux-b3d6524ff7956c5a898d51a18eaecb62a60a2b84.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky: - The remaining patches for the z13 machine support: kernel build option for z13, the cache synonym avoidance, SMT support, compare-and-delay for spinloops and the CES5S crypto adapater. - The ftrace support for function tracing with the gcc hotpatch option. This touches common code Makefiles, Steven is ok with the changes. - The hypfs file system gets an extension to access diagnose 0x0c data in user space for performance analysis for Linux running under z/VM. - The iucv hvc console gets wildcard spport for the user id filtering. - The cacheinfo code is converted to use the generic infrastructure. - Cleanup and bug fixes. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/process: free vx save area when releasing tasks s390/hypfs: Eliminate hypfs interval s390/hypfs: Add diagnose 0c support s390/cacheinfo: don't use smp_processor_id() in preemptible context s390/zcrypt: fixed domain scanning problem (again) s390/smp: increase maximum value of NR_CPUS to 512 s390/jump label: use different nop instruction s390/jump label: add sanity checks s390/mm: correct missing space when reporting user process faults s390/dasd: cleanup profiling s390/dasd: add locking for global_profile access s390/ftrace: hotpatch support for function tracing ftrace: let notrace function attribute disable hotpatching if necessary ftrace: allow architectures to specify ftrace compile options s390: reintroduce diag 44 calls for cpu_relax() s390/zcrypt: Add support for new crypto express (CEX5S) adapter. s390/zcrypt: Number of supported ap domains is not retrievable. s390/spinlock: add compare-and-delay to lock wait loops s390/tape: remove redundant if statement s390/hvc_iucv: add simple wildcard matches to the iucv allow filter ...
Diffstat (limited to 'drivers/s390/block/dcssblk.c')
-rw-r--r--drivers/s390/block/dcssblk.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index b550c8c8d010..7f900229404d 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -438,7 +438,13 @@ dcssblk_save_store(struct device *dev, struct device_attribute *attr, const char
pr_info("All DCSSs that map to device %s are "
"saved\n", dev_info->segment_name);
list_for_each_entry(entry, &dev_info->seg_list, lh) {
- segment_save(entry->segment_name);
+ if (entry->segment_type == SEG_TYPE_EN ||
+ entry->segment_type == SEG_TYPE_SN)
+ pr_warn("DCSS %s is of type SN or EN"
+ " and cannot be saved\n",
+ entry->segment_name);
+ else
+ segment_save(entry->segment_name);
}
} else {
// device is busy => we save it when it becomes
@@ -797,7 +803,12 @@ dcssblk_release(struct gendisk *disk, fmode_t mode)
pr_info("Device %s has become idle and is being saved "
"now\n", dev_info->segment_name);
list_for_each_entry(entry, &dev_info->seg_list, lh) {
- segment_save(entry->segment_name);
+ if (entry->segment_type == SEG_TYPE_EN ||
+ entry->segment_type == SEG_TYPE_SN)
+ pr_warn("DCSS %s is of type SN or EN and cannot"
+ " be saved\n", entry->segment_name);
+ else
+ segment_save(entry->segment_name);
}
dev_info->save_pending = 0;
}