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Revert "mm: zero-seek shrinkers"

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This reverts commit 0f8b75a710.

Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
This commit is contained in:
UtsavBalar1231 2022-04-26 22:00:46 +05:30 committed by spakkkk
parent dcfda39c8a
commit d2ab10877a
4 changed files with 4 additions and 19 deletions
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3
fs/kernfs/mount.c
View File

@ -240,9 +240,6 @@ static int kernfs_fill_super(struct super_block *sb, unsigned long magic)
sb->s_export_op = &kernfs_export_ops;
sb->s_time_gran = 1;
/* sysfs dentries and inodes don't require IO to create */
sb->s_shrink.seeks = 0;
/* get root inode, initialize and unlock it */
mutex_lock(&kernfs_mutex);
inode = kernfs_get_inode(sb, info->root->kn);

3
fs/proc/inode.c
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@ -512,9 +512,6 @@ int proc_fill_super(struct super_block *s)
*/
s->s_stack_depth = FILESYSTEM_MAX_STACK_DEPTH;
/* procfs dentries and inodes don't require IO to create */
s->s_shrink.seeks = 0;
pde_get(&proc_root);
root_inode = proc_get_inode(s, &proc_root);
if (!root_inode) {

15
mm/vmscan.c
View File

@ -479,18 +479,9 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
nr = atomic_long_xchg(&shrinker->nr_deferred[nid], 0);
total_scan = nr;
if (shrinker->seeks) {
delta = freeable >> priority;
delta *= 4;
do_div(delta, shrinker->seeks);
} else {
/*
* These objects don't require any IO to create. Trim
* them aggressively under memory pressure to keep
* them from causing refetches in the IO caches.
*/
delta = freeable / 2;
}
delta = freeable >> priority;
delta *= 4;
do_div(delta, shrinker->seeks);
total_scan += delta;
if (total_scan < 0) {

2
mm/workingset.c
View File

@ -524,7 +524,7 @@ static unsigned long scan_shadow_nodes(struct shrinker *shrinker,
static struct shrinker workingset_shadow_shrinker = {
.count_objects = count_shadow_nodes,
.scan_objects = scan_shadow_nodes,
.seeks = 0, /* ->count reports only fully expendable nodes */
.seeks = DEFAULT_SEEKS,
.flags = SHRINKER_NUMA_AWARE | SHRINKER_MEMCG_AWARE,
};