aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/resource.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <m.chehab@samsung.com>2014-04-14 11:00:36 -0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-04-14 11:00:36 -0400
commit277a163c83d7ba93fba1e8980d29a9f8bfcfba6c (patch)
treeccfd357d152292958957b6b8a993892e7a8cc95f /kernel/resource.c
parenta83b93a7480441a47856dc9104bea970e84cda87 (diff)
parentc9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff)
Merge tag 'v3.15-rc1' into patchwork
Linux 3.15-rc1 * tag 'v3.15-rc1': (12180 commits) Linux 3.15-rc1 mm: Initialize error in shmem_file_aio_read() cifs: Use min_t() when comparing "size_t" and "unsigned long" sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue powerpc: Don't try to set LPCR unless we're in hypervisor mode futex: update documentation for ordering guarantees ceph: fix pr_fmt() redefinition vti: don't allow to add the same tunnel twice gre: don't allow to add the same tunnel twice drivers: net: xen-netfront: fix array initialization bug missing bits of "splice: fix racy pipe->buffers uses" cifs: fix the race in cifs_writev() ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure pktgen: be friendly to LLTX devices r8152: check RTL8152_UNPLUG net: sun4i-emac: add promiscuous support net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO blackfin: cleanup board files bf609: clock: drop unused clock bit set/clear functions Blackfin: bf537: rename "CONFIG_ADT75" ...
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 3f285dce9347..8957d686e29b 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -432,11 +432,6 @@ static void resource_clip(struct resource *res, resource_size_t min,
432 res->end = max; 432 res->end = max;
433} 433}
434 434
435static bool resource_contains(struct resource *res1, struct resource *res2)
436{
437 return res1->start <= res2->start && res1->end >= res2->end;
438}
439
440/* 435/*
441 * Find empty slot in the resource tree with the given range and 436 * Find empty slot in the resource tree with the given range and
442 * alignment constraints 437 * alignment constraints
@@ -471,10 +466,11 @@ static int __find_resource(struct resource *root, struct resource *old,
471 arch_remove_reservations(&tmp); 466 arch_remove_reservations(&tmp);
472 467
473 /* Check for overflow after ALIGN() */ 468 /* Check for overflow after ALIGN() */
474 avail = *new;
475 avail.start = ALIGN(tmp.start, constraint->align); 469 avail.start = ALIGN(tmp.start, constraint->align);
476 avail.end = tmp.end; 470 avail.end = tmp.end;
471 avail.flags = new->flags & ~IORESOURCE_UNSET;
477 if (avail.start >= tmp.start) { 472 if (avail.start >= tmp.start) {
473 alloc.flags = avail.flags;
478 alloc.start = constraint->alignf(constraint->alignf_data, &avail, 474 alloc.start = constraint->alignf(constraint->alignf_data, &avail,
479 size, constraint->align); 475 size, constraint->align);
480 alloc.end = alloc.start + size - 1; 476 alloc.end = alloc.start + size - 1;
@@ -515,7 +511,7 @@ static int find_resource(struct resource *root, struct resource *new,
515 * @newsize: new size of the resource descriptor 511 * @newsize: new size of the resource descriptor
516 * @constraint: the size and alignment constraints to be met. 512 * @constraint: the size and alignment constraints to be met.
517 */ 513 */
518int reallocate_resource(struct resource *root, struct resource *old, 514static int reallocate_resource(struct resource *root, struct resource *old,
519 resource_size_t newsize, 515 resource_size_t newsize,
520 struct resource_constraint *constraint) 516 struct resource_constraint *constraint)
521{ 517{
@@ -949,8 +945,8 @@ struct resource * __request_region(struct resource *parent,
949 res->name = name; 945 res->name = name;
950 res->start = start; 946 res->start = start;
951 res->end = start + n - 1; 947 res->end = start + n - 1;
952 res->flags = IORESOURCE_BUSY; 948 res->flags = resource_type(parent);
953 res->flags |= flags; 949 res->flags |= IORESOURCE_BUSY | flags;
954 950
955 write_lock(&resource_lock); 951 write_lock(&resource_lock);
956 952