From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/fs/orangefs/orangefs-bufmap.c | 26 ++++++++++++++++++--------
1 files changed, 18 insertions(+), 8 deletions(-)
diff --git a/kernel/fs/orangefs/orangefs-bufmap.c b/kernel/fs/orangefs/orangefs-bufmap.c
index 6d20b1b..b501dc0 100644
--- a/kernel/fs/orangefs/orangefs-bufmap.c
+++ b/kernel/fs/orangefs/orangefs-bufmap.c
@@ -105,7 +105,7 @@
left = t;
else
left = t + (left - n);
- if (unlikely(signal_pending(current)))
+ if (signal_pending(current))
left = -EINTR;
} while (left > 0);
@@ -168,10 +168,7 @@
static void
orangefs_bufmap_unmap(struct orangefs_bufmap *bufmap)
{
- int i;
-
- for (i = 0; i < bufmap->page_count; i++)
- put_page(bufmap->page_array[i]);
+ unpin_user_pages(bufmap->page_array, bufmap->page_count);
}
static void
@@ -267,8 +264,8 @@
int offset = 0, ret, i;
/* map the pages */
- ret = get_user_pages_fast((unsigned long)user_desc->ptr,
- bufmap->page_count, 1, bufmap->page_array);
+ ret = pin_user_pages_fast((unsigned long)user_desc->ptr,
+ bufmap->page_count, FOLL_WRITE, bufmap->page_array);
if (ret < 0)
return ret;
@@ -279,7 +276,7 @@
for (i = 0; i < ret; i++) {
SetPageError(bufmap->page_array[i]);
- put_page(bufmap->page_array[i]);
+ unpin_user_page(bufmap->page_array[i]);
}
return -ENOMEM;
}
@@ -537,3 +534,16 @@
}
return 0;
}
+
+void orangefs_bufmap_page_fill(void *page_to,
+ int buffer_index,
+ int slot_index)
+{
+ struct orangefs_bufmap_desc *from;
+ void *page_from;
+
+ from = &__orangefs_bufmap->desc_array[buffer_index];
+ page_from = kmap_atomic(from->page_array[slot_index]);
+ memcpy(page_to, page_from, PAGE_SIZE);
+ kunmap_atomic(page_from);
+}
--
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