From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/nfs/pnfs_dev.c | 19 ++++++++++++++++---
1 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/kernel/fs/nfs/pnfs_dev.c b/kernel/fs/nfs/pnfs_dev.c
index e8a07b3..d4829f3 100644
--- a/kernel/fs/nfs/pnfs_dev.c
+++ b/kernel/fs/nfs/pnfs_dev.c
@@ -94,7 +94,7 @@
static struct nfs4_deviceid_node *
nfs4_get_device_info(struct nfs_server *server,
const struct nfs4_deviceid *dev_id,
- struct rpc_cred *cred, gfp_t gfp_flags)
+ const struct cred *cred, gfp_t gfp_flags)
{
struct nfs4_deviceid_node *d = NULL;
struct pnfs_device *pdev = NULL;
@@ -152,7 +152,7 @@
set_bit(NFS_DEVICEID_NOCACHE, &d->flags);
out_free_pages:
- for (i = 0; i < max_pages; i++)
+ while (--i >= 0)
__free_page(pages[i]);
kfree(pages);
out_free_pdev:
@@ -184,7 +184,7 @@
struct nfs4_deviceid_node *
nfs4_find_get_deviceid(struct nfs_server *server,
- const struct nfs4_deviceid *id, struct rpc_cred *cred,
+ const struct nfs4_deviceid *id, const struct cred *cred,
gfp_t gfp_mask)
{
long hash = nfs4_deviceid_hash(id);
@@ -284,10 +284,22 @@
EXPORT_SYMBOL_GPL(nfs4_put_deviceid_node);
void
+nfs4_mark_deviceid_available(struct nfs4_deviceid_node *node)
+{
+ if (test_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags)) {
+ clear_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags);
+ smp_mb__after_atomic();
+ }
+}
+EXPORT_SYMBOL_GPL(nfs4_mark_deviceid_available);
+
+void
nfs4_mark_deviceid_unavailable(struct nfs4_deviceid_node *node)
{
node->timestamp_unavailable = jiffies;
+ smp_mb__before_atomic();
set_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags);
+ smp_mb__after_atomic();
}
EXPORT_SYMBOL_GPL(nfs4_mark_deviceid_unavailable);
@@ -302,6 +314,7 @@
if (time_in_range(node->timestamp_unavailable, start, end))
return true;
clear_bit(NFS_DEVICEID_UNAVAILABLE, &node->flags);
+ smp_mb__after_atomic();
}
return false;
}
--
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