diff options
Diffstat (limited to 'arch/s390/mm/extmem.c')
-rw-r--r-- | arch/s390/mm/extmem.c | 75 |
1 files changed, 56 insertions, 19 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c index 880b0ebf894b..f231f5ec74b6 100644 --- a/arch/s390/mm/extmem.c +++ b/arch/s390/mm/extmem.c @@ -287,24 +287,10 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long if (rc < 0) goto out_free; - rc = add_shared_memory(seg->start_addr, seg->end - seg->start_addr + 1); + rc = vmem_add_mapping(seg->start_addr, seg->end - seg->start_addr + 1); - switch (rc) { - case 0: - break; - case -ENOSPC: - PRINT_WARN("segment_load: not loading segment %s - overlaps " - "storage/segment\n", name); - goto out_free; - case -ERANGE: - PRINT_WARN("segment_load: not loading segment %s - exceeds " - "kernel mapping range\n", name); - goto out_free; - default: - PRINT_WARN("segment_load: not loading segment %s (rc: %d)\n", - name, rc); + if (rc) goto out_free; - } seg->res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (seg->res == NULL) { @@ -365,7 +351,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long release_resource(seg->res); kfree(seg->res); out_shared: - remove_shared_memory(seg->start_addr, seg->end - seg->start_addr + 1); + vmem_remove_mapping(seg->start_addr, seg->end - seg->start_addr + 1); out_free: kfree(seg); out: @@ -488,7 +474,7 @@ segment_modify_shared (char *name, int do_nonshared) rc = 0; goto out_unlock; out_del: - remove_shared_memory(seg->start_addr, seg->end - seg->start_addr + 1); + vmem_remove_mapping(seg->start_addr, seg->end - seg->start_addr + 1); list_del(&seg->list); dcss_diag(DCSS_PURGESEG, seg->dcss_name, &dummy, &dummy); kfree(seg); @@ -522,7 +508,7 @@ segment_unload(char *name) goto out_unlock; release_resource(seg->res); kfree(seg->res); - remove_shared_memory(seg->start_addr, seg->end - seg->start_addr + 1); + vmem_remove_mapping(seg->start_addr, seg->end - seg->start_addr + 1); list_del(&seg->list); dcss_diag(DCSS_PURGESEG, seg->dcss_name, &dummy, &dummy); kfree(seg); @@ -582,8 +568,59 @@ out: mutex_unlock(&dcss_lock); } +/* + * print appropriate error message for segment_load()/segment_type() + * return code + */ +void segment_warning(int rc, char *seg_name) +{ + switch (rc) { + case -ENOENT: + PRINT_WARN("cannot load/query segment %s, " + "does not exist\n", seg_name); + break; + case -ENOSYS: + PRINT_WARN("cannot load/query segment %s, " + "not running on VM\n", seg_name); + break; + case -EIO: + PRINT_WARN("cannot load/query segment %s, " + "hardware error\n", seg_name); + break; + case -ENOTSUPP: + PRINT_WARN("cannot load/query segment %s, " + "is a multi-part segment\n", seg_name); + break; + case -ENOSPC: + PRINT_WARN("cannot load/query segment %s, " + "overlaps with storage\n", seg_name); + break; + case -EBUSY: + PRINT_WARN("cannot load/query segment %s, " + "overlaps with already loaded dcss\n", seg_name); + break; + case -EPERM: + PRINT_WARN("cannot load/query segment %s, " + "already loaded in incompatible mode\n", seg_name); + break; + case -ENOMEM: + PRINT_WARN("cannot load/query segment %s, " + "out of memory\n", seg_name); + break; + case -ERANGE: + PRINT_WARN("cannot load/query segment %s, " + "exceeds kernel mapping range\n", seg_name); + break; + default: + PRINT_WARN("cannot load/query segment %s, " + "return value %i\n", seg_name, rc); + break; + } +} + EXPORT_SYMBOL(segment_load); EXPORT_SYMBOL(segment_unload); EXPORT_SYMBOL(segment_save); EXPORT_SYMBOL(segment_type); EXPORT_SYMBOL(segment_modify_shared); +EXPORT_SYMBOL(segment_warning); |