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authorAndrew Morton <akpm@linux-foundation.org>2023-01-31 17:25:17 -0800
committerAndrew Morton <akpm@linux-foundation.org>2023-01-31 17:25:17 -0800
commit5ab0fc155dc0cac3b74584f7bc972569b0f8a57b (patch)
treefb43458b715be3a72c872bc4ce0e7c45e6f76ccb /mm/memcontrol.c
parent9a3f21fe5cb9f5654ccad7ba712d868f7de66e39 (diff)
parentac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 (diff)
Sync mm-stable with mm-hotfixes-stable to pick up dependent patches
Merge branch 'mm-hotfixes-stable' into mm-stable
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c67
1 files changed, 13 insertions, 54 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 17965e558ab7..faeea84964aa 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -63,7 +63,6 @@
#include <linux/resume_user_mode.h>
#include <linux/psi.h>
#include <linux/seq_buf.h>
-#include <linux/parser.h>
#include "internal.h"
#include <net/sock.h>
#include <net/ip.h>
@@ -2403,8 +2402,7 @@ static unsigned long reclaim_high(struct mem_cgroup *memcg,
psi_memstall_enter(&pflags);
nr_reclaimed += try_to_free_mem_cgroup_pages(memcg, nr_pages,
gfp_mask,
- MEMCG_RECLAIM_MAY_SWAP,
- NULL);
+ MEMCG_RECLAIM_MAY_SWAP);
psi_memstall_leave(&pflags);
} while ((memcg = parent_mem_cgroup(memcg)) &&
!mem_cgroup_is_root(memcg));
@@ -2695,8 +2693,7 @@ retry:
psi_memstall_enter(&pflags);
nr_reclaimed = try_to_free_mem_cgroup_pages(mem_over_limit, nr_pages,
- gfp_mask, reclaim_options,
- NULL);
+ gfp_mask, reclaim_options);
psi_memstall_leave(&pflags);
if (mem_cgroup_margin(mem_over_limit) >= nr_pages)
@@ -3516,8 +3513,7 @@ static int mem_cgroup_resize_max(struct mem_cgroup *memcg,
}
if (!try_to_free_mem_cgroup_pages(memcg, 1, GFP_KERNEL,
- memsw ? 0 : MEMCG_RECLAIM_MAY_SWAP,
- NULL)) {
+ memsw ? 0 : MEMCG_RECLAIM_MAY_SWAP)) {
ret = -EBUSY;
break;
}
@@ -3631,8 +3627,7 @@ static int mem_cgroup_force_empty(struct mem_cgroup *memcg)
return -EINTR;
if (!try_to_free_mem_cgroup_pages(memcg, 1, GFP_KERNEL,
- MEMCG_RECLAIM_MAY_SWAP,
- NULL))
+ MEMCG_RECLAIM_MAY_SWAP))
nr_retries--;
}
@@ -6473,8 +6468,7 @@ static ssize_t memory_high_write(struct kernfs_open_file *of,
}
reclaimed = try_to_free_mem_cgroup_pages(memcg, nr_pages - high,
- GFP_KERNEL, MEMCG_RECLAIM_MAY_SWAP,
- NULL);
+ GFP_KERNEL, MEMCG_RECLAIM_MAY_SWAP);
if (!reclaimed && !nr_retries--)
break;
@@ -6523,8 +6517,7 @@ static ssize_t memory_max_write(struct kernfs_open_file *of,
if (nr_reclaims) {
if (!try_to_free_mem_cgroup_pages(memcg, nr_pages - max,
- GFP_KERNEL, MEMCG_RECLAIM_MAY_SWAP,
- NULL))
+ GFP_KERNEL, MEMCG_RECLAIM_MAY_SWAP))
nr_reclaims--;
continue;
}
@@ -6647,54 +6640,21 @@ static ssize_t memory_oom_group_write(struct kernfs_open_file *of,
return nbytes;
}
-enum {
- MEMORY_RECLAIM_NODES = 0,
- MEMORY_RECLAIM_NULL,
-};
-
-static const match_table_t if_tokens = {
- { MEMORY_RECLAIM_NODES, "nodes=%s" },
- { MEMORY_RECLAIM_NULL, NULL },
-};
-
static ssize_t memory_reclaim(struct kernfs_open_file *of, char *buf,
size_t nbytes, loff_t off)
{
struct mem_cgroup *memcg = mem_cgroup_from_css(of_css(of));
unsigned int nr_retries = MAX_RECLAIM_RETRIES;
unsigned long nr_to_reclaim, nr_reclaimed = 0;
- unsigned int reclaim_options = MEMCG_RECLAIM_MAY_SWAP |
- MEMCG_RECLAIM_PROACTIVE;
- char *old_buf, *start;
- substring_t args[MAX_OPT_ARGS];
- int token;
- char value[256];
- nodemask_t nodemask = NODE_MASK_ALL;
-
- buf = strstrip(buf);
-
- old_buf = buf;
- nr_to_reclaim = memparse(buf, &buf) / PAGE_SIZE;
- if (buf == old_buf)
- return -EINVAL;
+ unsigned int reclaim_options;
+ int err;
buf = strstrip(buf);
+ err = page_counter_memparse(buf, "", &nr_to_reclaim);
+ if (err)
+ return err;
- while ((start = strsep(&buf, " ")) != NULL) {
- if (!strlen(start))
- continue;
- token = match_token(start, if_tokens, args);
- match_strlcpy(value, args, sizeof(value));
- switch (token) {
- case MEMORY_RECLAIM_NODES:
- if (nodelist_parse(value, nodemask) < 0)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
- }
-
+ reclaim_options = MEMCG_RECLAIM_MAY_SWAP | MEMCG_RECLAIM_PROACTIVE;
while (nr_reclaimed < nr_to_reclaim) {
unsigned long reclaimed;
@@ -6711,8 +6671,7 @@ static ssize_t memory_reclaim(struct kernfs_open_file *of, char *buf,
reclaimed = try_to_free_mem_cgroup_pages(memcg,
nr_to_reclaim - nr_reclaimed,
- GFP_KERNEL, reclaim_options,
- &nodemask);
+ GFP_KERNEL, reclaim_options);
if (!reclaimed && !nr_retries--)
return -EAGAIN;