[PATCH 6/7] cifs: smbd: Retry on memory registration failure
flat view
STALE3100d
From: Long Li <hidden>
Date: 2018-05-07 22:22:11
Also in:
linux-cifs, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
From: Long Li <redacted> Memory registration failure doesn't mean this I/O has failed, it means the transport is hitting I/O error or needs reconnect. This error is not from the server. Indicate this error to upper layer, and let upper layer decide how to reconnect and proceed with this I/O. Signed-off-by: Long Li <redacted> --- fs/cifs/smb2pdu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 09ca098..c72d1fa 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c@@ -2617,7 +2617,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len, true, need_invalidate); rcu_read_unlock(); if (!rdata->mr) - return -ENOBUFS; + return -EAGAIN; req->Channel = SMB2_CHANNEL_RDMA_V1_INVALIDATE; if (need_invalidate)
@@ -2997,7 +2997,7 @@ smb2_async_writev(struct cifs_writedata *wdata, false, need_invalidate); rcu_read_unlock(); if (!wdata->mr) { - rc = -ENOBUFS; + rc = -EAGAIN; goto async_writev_out; } req->Length = 0;
--
2.7.4