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authorJiri Kosina <jkosina@suse.cz>2017-05-02 12:02:41 +0300
committerJiri Kosina <jkosina@suse.cz>2017-05-02 12:02:41 +0300
commit4d6ca227c768b50b05cf183974b40abe444e9d0c (patch)
treebf953d8e895281053548b9967a2c4b58d641df00 /fs/nfs/flexfilelayout/flexfilelayout.h
parent800f3eef8ebc1264e9c135bfa892c8ae41fa4792 (diff)
parentaf22a610bc38508d5ea760507d31be6b6983dfa8 (diff)
downloadlinux-4d6ca227c768b50b05cf183974b40abe444e9d0c.tar.xz
Merge branch 'for-4.12/asus' into for-linus
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayout.h')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index f4f39b0ab09b..98b34c9b0564 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -175,7 +175,19 @@ ff_layout_no_read_on_rw(struct pnfs_layout_segment *lseg)
static inline bool
ff_layout_test_devid_unavailable(struct nfs4_deviceid_node *node)
{
- return nfs4_test_deviceid_unavailable(node);
+ /*
+ * Flexfiles should never mark a DS unavailable, but if it does
+ * print a (ratelimited) warning as this can affect performance.
+ */
+ if (nfs4_test_deviceid_unavailable(node)) {
+ u32 *p = (u32 *)node->deviceid.data;
+
+ pr_warn_ratelimited("NFS: flexfiles layout referencing an "
+ "unavailable device [%x%x%x%x]\n",
+ p[0], p[1], p[2], p[3]);
+ return true;
+ }
+ return false;
}
static inline int