From: Baolin Wang <baolin.wang@linux.alibaba.com>
To: akpm@linux-foundation.org, hughd@google.com
Cc: willy@infradead.org, david@redhat.com,
wangkefeng.wang@huawei.com, chrisl@kernel.org,
ying.huang@intel.com, 21cnbao@gmail.com, ryan.roberts@arm.com,
shy828301@gmail.com, ziy@nvidia.com, ioworker0@gmail.com,
da.gomez@samsung.com, p.raghav@samsung.com,
baolin.wang@linux.alibaba.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v5 2/9] mm: shmem: extend shmem_partial_swap_usage() to support large folio swap
Date: Mon, 12 Aug 2024 15:42:03 +0800 [thread overview]
Message-ID: <60b130b9fc3e422bb91293a172c2113c85e9233a.1723434324.git.baolin.wang@linux.alibaba.com> (raw)
In-Reply-To: <cover.1723434324.git.baolin.wang@linux.alibaba.com>
To support shmem large folio swapout in the following patches, using
xa_get_order() to get the order of the swap entry to calculate the swap
usage of shmem.
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 22cdc10f27ea..02fb188d627f 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -890,7 +890,7 @@ unsigned long shmem_partial_swap_usage(struct address_space *mapping,
if (xas_retry(&xas, page))
continue;
if (xa_is_value(page))
- swapped++;
+ swapped += 1 << xa_get_order(xas.xa, xas.xa_index);
if (xas.xa_index == max)
break;
if (need_resched()) {
--
2.39.3
next prev parent reply other threads:[~2024-08-12 7:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-12 7:42 [PATCH v5 0/9] support large folio swap-out and swap-in for shmem Baolin Wang
2024-08-12 7:42 ` [PATCH v5 1/9] mm: swap: extend swap_shmem_alloc() to support batch SWAP_MAP_SHMEM flag setting Baolin Wang
2024-08-12 7:42 ` Baolin Wang [this message]
2024-08-12 7:42 ` [PATCH v5 3/9] mm: shmem: return number of pages beeing freed in shmem_free_swap Baolin Wang
2024-08-12 7:42 ` [PATCH v5 4/9] mm: filemap: use xa_get_order() to get the swap entry order Baolin Wang
2024-08-25 21:55 ` Hugh Dickins
2024-08-25 23:28 ` Matthew Wilcox
2024-08-27 10:10 ` Baolin Wang
2024-08-29 8:07 ` Hugh Dickins
2024-08-29 12:40 ` Baolin Wang
2024-08-30 10:18 ` Hugh Dickins
2024-08-12 7:42 ` [PATCH v5 5/9] mm: shmem: use swap_free_nr() to free shmem swap entries Baolin Wang
2024-08-12 7:42 ` [PATCH v5 6/9] mm: shmem: support large folio allocation for shmem_replace_folio() Baolin Wang
2024-08-25 22:05 ` Hugh Dickins
2024-08-27 3:06 ` Baolin Wang
2024-08-12 7:42 ` [PATCH v5 7/9] mm: shmem: drop folio reference count using 'nr_pages' in shmem_delete_from_page_cache() Baolin Wang
2024-08-12 7:42 ` [PATCH v5 8/9] mm: shmem: split large entry if the swapin folio is not large Baolin Wang
2024-08-25 22:31 ` Hugh Dickins
2024-08-27 6:46 ` Baolin Wang
2024-08-12 7:42 ` [PATCH v5 9/9] mm: shmem: support large folio swap out Baolin Wang
2024-08-25 23:14 ` Hugh Dickins
2024-08-27 6:58 ` Baolin Wang
2024-08-28 8:28 ` [PATCH] mm: shmem: support large folio swap out fix 2 Baolin Wang
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