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| author |   Olga Kornievskaia <kolga@netapp.com> | 2019-06-14 14:38:40 -0400 |
|---|---|---|
| committer |   Olga Kornievskaia <olga.kornievskaia@gmail.com> | 2019-10-09 12:06:19 -0400 |
| commit | 0e65a32c8a569db363048e17a708b1a0913adbef (patch) | |
| tree | b95285f447a3148dff7c286f99dc1e317ccc6872 /fs/nfs/nfs4file.c | |
| parent | NFS handle NFS4ERR_PARTNER_NO_AUTH error (diff) | |
| download | linux-dev-0e65a32c8a569db363048e17a708b1a0913adbef.tar.xz linux-dev-0e65a32c8a569db363048e17a708b1a0913adbef.zip | |
NFS: handle source server reboot
When the source server reboots after a server-to-server copy was
issued, we need to retry the copy from COPY_NOTIFY. We need to
detect that the source server rebooted and there is a copy waiting
on a destination server and wake it up.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/nfs/nfs4file.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index a932fc9ca9c4..2af30b7f5bfd 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -146,6 +146,7 @@ static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in, return -EOPNOTSUPP; if (file_inode(file_in) == file_inode(file_out)) return -EOPNOTSUPP; +retry: if (!nfs42_files_from_same_server(file_in, file_out)) { cn_resp = kzalloc(sizeof(struct nfs42_copy_notify_res), GFP_NOFS); @@ -164,6 +165,8 @@ static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in, nss, cnrs); out: kfree(cn_resp); + if (ret == -EAGAIN) + goto retry; return ret; } |