Revision 78c56e53821a7ec3462ce448c1fe6a8d44358831 authored by Linus Torvalds on 30 September 2021, 19:00:46 UTC, committed by Linus Torvalds on 30 September 2021, 19:00:46 UTC
Pull rdma fixes from Jason Gunthorpe: "Not much too exciting here, although two syzkaller bugs that seem to have 9 lives may have finally been squashed. Several core bugs and a batch of driver bug fixes: - Fix compilation problems in qib and hfi1 - Do not corrupt the joined multicast group state when using SEND_ONLY - Several CMA bugs, a reference leak for listening and two syzkaller crashers - Various bug fixes for irdma - Fix a Sleeping while atomic bug in usnic - Properly sanitize kernel pointers in dmesg - Two bugs in the 64b CQE support for hns" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/hns: Add the check of the CQE size of the user space RDMA/hns: Fix the size setting error when copying CQE in clean_cq() RDMA/hfi1: Fix kernel pointer leak RDMA/usnic: Lock VF with mutex instead of spinlock RDMA/hns: Work around broken constant propagation in gcc 8 RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests RDMA/cma: Do not change route.addr.src_addr.ss_family RDMA/irdma: Report correct WC error when there are MW bind errors RDMA/irdma: Report correct WC error when transport retry counter is exceeded RDMA/irdma: Validate number of CQ entries on create CQ RDMA/irdma: Skip CQP ring during a reset MAINTAINERS: Update Broadcom RDMA maintainers RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure IB/cma: Do not send IGMP leaves for sendonly Multicast groups IB/qib: Fix clang confusion of NULL pointer comparison
mmzone.c
// SPDX-License-Identifier: GPL-2.0
/*
* linux/mm/mmzone.c
*
* management codes for pgdats, zones and page flags
*/
#include <linux/stddef.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
struct pglist_data *first_online_pgdat(void)
{
return NODE_DATA(first_online_node);
}
struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
{
int nid = next_online_node(pgdat->node_id);
if (nid == MAX_NUMNODES)
return NULL;
return NODE_DATA(nid);
}
/*
* next_zone - helper magic for for_each_zone()
*/
struct zone *next_zone(struct zone *zone)
{
pg_data_t *pgdat = zone->zone_pgdat;
if (zone < pgdat->node_zones + MAX_NR_ZONES - 1)
zone++;
else {
pgdat = next_online_pgdat(pgdat);
if (pgdat)
zone = pgdat->node_zones;
else
zone = NULL;
}
return zone;
}
static inline int zref_in_nodemask(struct zoneref *zref, nodemask_t *nodes)
{
#ifdef CONFIG_NUMA
return node_isset(zonelist_node_idx(zref), *nodes);
#else
return 1;
#endif /* CONFIG_NUMA */
}
/* Returns the next zone at or below highest_zoneidx in a zonelist */
struct zoneref *__next_zones_zonelist(struct zoneref *z,
enum zone_type highest_zoneidx,
nodemask_t *nodes)
{
/*
* Find the next suitable zone to use for the allocation.
* Only filter based on nodemask if it's set
*/
if (unlikely(nodes == NULL))
while (zonelist_zone_idx(z) > highest_zoneidx)
z++;
else
while (zonelist_zone_idx(z) > highest_zoneidx ||
(z->zone && !zref_in_nodemask(z, nodes)))
z++;
return z;
}
void lruvec_init(struct lruvec *lruvec)
{
enum lru_list lru;
memset(lruvec, 0, sizeof(struct lruvec));
spin_lock_init(&lruvec->lru_lock);
for_each_lru(lru)
INIT_LIST_HEAD(&lruvec->lists[lru]);
}
#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_CPUPID_NOT_IN_PAGE_FLAGS)
int page_cpupid_xchg_last(struct page *page, int cpupid)
{
unsigned long old_flags, flags;
int last_cpupid;
do {
old_flags = flags = page->flags;
last_cpupid = page_cpupid_last(page);
flags &= ~(LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT);
flags |= (cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT;
} while (unlikely(cmpxchg(&page->flags, old_flags, flags) != old_flags));
return last_cpupid;
}
#endif
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