[PATCH v1] ubifs: support page statistics in vmstat
From: Stanley Chu <hidden>
Date: 2019-07-18 12:04:16
Also in:
linux-mediatek
Subsystem:
filesystems (vfs and infrastructure), the rest, ubi file system (ubifs) · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Richard Weinberger
Currently PGPGIN and PGPGOUT statistics in vmstat is only hooked in submit_bio() for block device I/O path. This patch adds this feature for ubifs as well. Change-Id: I8505bd2a7aa9eadc6abcd68b7d8b870752e71339 Signed-off-by: Stanley Chu <redacted> --- fs/ubifs/file.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 512e7d9c60cd..ffe7ce77f389 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c@@ -902,6 +902,8 @@ static int ubifs_bulk_read(struct page *page) static int ubifs_readpage(struct file *file, struct page *page) { + count_vm_events(PGPGIN, PAGE_CACHE_SIZE >> 9); + if (ubifs_bulk_read(page)) return 0; do_readpage(page);
@@ -1032,6 +1034,8 @@ static int ubifs_writepage(struct page *page, struct writeback_control *wbc) goto out_unlock; } + count_vm_events(PGPGOUT, PAGE_CACHE_SIZE >> 9); + spin_lock(&ui->ui_lock); synced_i_size = ui->synced_i_size; spin_unlock(&ui->ui_lock);
--
2.18.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel