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Linux 6.8 compat: replace MAX_ORDER define

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MAX_ORDER has been renamed to MAX_PAGE_ORDER. Rather than just
redefining it, instead define our own name and set it consistently from
the start.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/
Closes #15805
This commit is contained in:
Rob Norris 2024-01-23 16:41:05 +11:00 committed by Brian Behlendorf
parent 7466e09a49
commit 09e6724e1e
1 changed files with 18 additions and 9 deletions
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27
module/os/linux/zfs/abd_os.c
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@ -60,8 +60,16 @@
#ifdef _KERNEL
#include <linux/kmap_compat.h>
#include <linux/scatterlist.h>
#endif
#ifdef _KERNEL
#if defined(MAX_ORDER)
#define ABD_MAX_ORDER (MAX_ORDER)
#elif defined(MAX_PAGE_ORDER)
#define ABD_MAX_ORDER (MAX_PAGE_ORDER)
#endif
#else
#define MAX_ORDER 1
#define ABD_MAX_ORDER (1)
#endif
typedef struct abd_stats {
@ -71,7 +79,7 @@ typedef struct abd_stats {
kstat_named_t abdstat_scatter_cnt;
kstat_named_t abdstat_scatter_data_size;
kstat_named_t abdstat_scatter_chunk_waste;
kstat_named_t abdstat_scatter_orders[MAX_ORDER];
kstat_named_t abdstat_scatter_orders[ABD_MAX_ORDER];
kstat_named_t abdstat_scatter_page_multi_chunk;
kstat_named_t abdstat_scatter_page_multi_zone;
kstat_named_t abdstat_scatter_page_alloc_retry;
@ -139,7 +147,7 @@ static struct {
wmsum_t abdstat_scatter_cnt;
wmsum_t abdstat_scatter_data_size;
wmsum_t abdstat_scatter_chunk_waste;
wmsum_t abdstat_scatter_orders[MAX_ORDER];
wmsum_t abdstat_scatter_orders[ABD_MAX_ORDER];
wmsum_t abdstat_scatter_page_multi_chunk;
wmsum_t abdstat_scatter_page_multi_zone;
wmsum_t abdstat_scatter_page_alloc_retry;
@ -222,7 +230,7 @@ abd_free_struct_impl(abd_t *abd)
}
#ifdef _KERNEL
static unsigned zfs_abd_scatter_max_order = MAX_ORDER - 1;
static unsigned zfs_abd_scatter_max_order = ABD_MAX_ORDER - 1;
/*
* Mark zfs data pages so they can be excluded from kernel crash dumps
@ -272,7 +280,8 @@ abd_alloc_chunks(abd_t *abd, size_t size)
struct page *page, *tmp_page = NULL;
gfp_t gfp = __GFP_NOWARN | GFP_NOIO;
gfp_t gfp_comp = (gfp | __GFP_NORETRY | __GFP_COMP) & ~__GFP_RECLAIM;
unsigned int max_order = MIN(zfs_abd_scatter_max_order, MAX_ORDER - 1);
unsigned int max_order = MIN(zfs_abd_scatter_max_order,
ABD_MAX_ORDER - 1);
unsigned int nr_pages = abd_chunkcnt_for_bytes(size);
unsigned int chunks = 0, zones = 0;
size_t remaining_size;
@ -729,7 +738,7 @@ abd_kstats_update(kstat_t *ksp, int rw)
wmsum_value(&abd_sums.abdstat_scatter_data_size);
as->abdstat_scatter_chunk_waste.value.ui64 =
wmsum_value(&abd_sums.abdstat_scatter_chunk_waste);
for (int i = 0; i < MAX_ORDER; i++) {
for (int i = 0; i < ABD_MAX_ORDER; i++) {
as->abdstat_scatter_orders[i].value.ui64 =
wmsum_value(&abd_sums.abdstat_scatter_orders[i]);
}
@ -758,7 +767,7 @@ abd_init(void)
wmsum_init(&abd_sums.abdstat_scatter_cnt, 0);
wmsum_init(&abd_sums.abdstat_scatter_data_size, 0);
wmsum_init(&abd_sums.abdstat_scatter_chunk_waste, 0);
for (i = 0; i < MAX_ORDER; i++)
for (i = 0; i < ABD_MAX_ORDER; i++)
wmsum_init(&abd_sums.abdstat_scatter_orders[i], 0);
wmsum_init(&abd_sums.abdstat_scatter_page_multi_chunk, 0);
wmsum_init(&abd_sums.abdstat_scatter_page_multi_zone, 0);
@ -768,7 +777,7 @@ abd_init(void)
abd_ksp = kstat_create("zfs", 0, "abdstats", "misc", KSTAT_TYPE_NAMED,
sizeof (abd_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
if (abd_ksp != NULL) {
for (i = 0; i < MAX_ORDER; i++) {
for (i = 0; i < ABD_MAX_ORDER; i++) {
snprintf(abd_stats.abdstat_scatter_orders[i].name,
KSTAT_STRLEN, "scatter_order_%d", i);
abd_stats.abdstat_scatter_orders[i].data_type =
@ -798,7 +807,7 @@ abd_fini(void)
wmsum_fini(&abd_sums.abdstat_scatter_cnt);
wmsum_fini(&abd_sums.abdstat_scatter_data_size);
wmsum_fini(&abd_sums.abdstat_scatter_chunk_waste);
for (int i = 0; i < MAX_ORDER; i++)
for (int i = 0; i < ABD_MAX_ORDER; i++)
wmsum_fini(&abd_sums.abdstat_scatter_orders[i]);
wmsum_fini(&abd_sums.abdstat_scatter_page_multi_chunk);
wmsum_fini(&abd_sums.abdstat_scatter_page_multi_zone);