[PATCH 3/7] mm, page_flags: remove PG_slob_free

Vlastimil Babka
2023-03-10T10:32:21Z

With SLOB removed we no longer need the PG_slob_free alias for
PG_private. Also update tools/mm/page-types.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
include/linux/page-flags.h | 4 ----
tools/mm/page-types.c | 6 +-----
2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index a7e3a3405520..2bdc41cb0594 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -174,9 +174,6 @@ enum pageflags {
/* Remapped by swiotlb-xen. */
PG_xen_remapped = PG_owner_priv_1,

- /* SLOB */
- PG_slob_free = PG_private,
-
#ifdef CONFIG_MEMORY_FAILURE
/*
* Compound pages. Stored in first tail page's flags.
@@ -483,7 +480,6 @@ PAGEFLAG(Active, active, PF_HEAD) __CLEARPAGEFLAG(Active, active, PF_HEAD)
PAGEFLAG(Workingset, workingset, PF_HEAD)
TESTCLEARFLAG(Workingset, workingset, PF_HEAD)
__PAGEFLAG(Slab, slab, PF_NO_TAIL)
-__PAGEFLAG(SlobFree, slob_free, PF_NO_TAIL)
PAGEFLAG(Checked, checked, PF_NO_COMPOUND) /* Used by some filesystems */

/* Xen */
diff --git a/tools/mm/page-types.c b/tools/mm/page-types.c
index 381dcc00cb62..8d5595b6c59f 100644
--- a/tools/mm/page-types.c
+++ b/tools/mm/page-types.c
@@ -85,7 +85,6 @@
*/
#define KPF_ANON_EXCLUSIVE 47
#define KPF_READAHEAD 48
-#define KPF_SLOB_FREE 49
#define KPF_SLUB_FROZEN 50
#define KPF_SLUB_DEBUG 51
#define KPF_FILE 61
@@ -141,7 +140,6 @@ static const char * const page_flag_names[] = {

[KPF_ANON_EXCLUSIVE] = "d:anon_exclusive",
[KPF_READAHEAD] = "I:readahead",
- [KPF_SLOB_FREE] = "P:slob_free",
[KPF_SLUB_FROZEN] = "A:slub_frozen",
[KPF_SLUB_DEBUG] = "E:slub_debug",

@@ -478,10 +476,8 @@ static uint64_t expand_overloaded_flags(uint64_t flags, uint64_t pme)
if ((flags & BIT(ANON)) && (flags & BIT(MAPPEDTODISK)))
flags ^= BIT(MAPPEDTODISK) | BIT(ANON_EXCLUSIVE);

- /* SLOB/SLUB overload several page flags */
+ /* SLUB overloads several page flags */
if (flags & BIT(SLAB)) {
- if (flags & BIT(PRIVATE))
- flags ^= BIT(PRIVATE) | BIT(SLOB_FREE);
if (flags & BIT(ACTIVE))
flags ^= BIT(ACTIVE) | BIT(SLUB_FROZEN);
if (flags & BIT(ERROR))
--
2.39.2