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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-09-25 11:16:54 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-09-25 11:16:54 +0200
commitea2c1f2fff9e8c48d5dc0877a803edf916b1cfcf (patch)
treeea0f5ba14a51d6e7f8160c63bbd84a4e0f18b1a9 /drivers/block/zram/zram_drv.c
parent362f34fba309536598a02bc0541ccaeae2bc9052 (diff)
parentb0d8acc711981d712a59ee20b073cbc52a4109c5 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block/zram/zram_drv.c')
-rw-r--r--drivers/block/zram/zram_drv.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 54c57103715f..0f7bcc86b6f7 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1794,6 +1794,7 @@ static int write_same_filled_page(struct zram *zram, unsigned long fill,
u32 index)
{
zram_slot_lock(zram, index);
+ zram_free_page(zram, index);
zram_set_flag(zram, index, ZRAM_SAME);
zram_set_handle(zram, index, fill);
zram_slot_unlock(zram, index);
@@ -1831,6 +1832,7 @@ static int write_incompressible_page(struct zram *zram, struct page *page,
kunmap_local(src);
zram_slot_lock(zram, index);
+ zram_free_page(zram, index);
zram_set_flag(zram, index, ZRAM_HUGE);
zram_set_handle(zram, index, handle);
zram_set_obj_size(zram, index, PAGE_SIZE);
@@ -1854,11 +1856,6 @@ static int zram_write_page(struct zram *zram, struct page *page, u32 index)
unsigned long element;
bool same_filled;
- /* First, free memory allocated to this slot (if any) */
- zram_slot_lock(zram, index);
- zram_free_page(zram, index);
- zram_slot_unlock(zram, index);
-
mem = kmap_local_page(page);
same_filled = page_same_filled(mem, &element);
kunmap_local(mem);
@@ -1900,6 +1897,7 @@ static int zram_write_page(struct zram *zram, struct page *page, u32 index)
zcomp_stream_put(zstrm);
zram_slot_lock(zram, index);
+ zram_free_page(zram, index);
zram_set_handle(zram, index, handle);
zram_set_obj_size(zram, index, comp_len);
zram_slot_unlock(zram, index);