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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-08-30 18:53:06 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-08-30 22:10:27 +0200 |
| commit | 90816d1ddacfb5a8b783f67e2c1a1bc77dc50ff4 (patch) | |
| tree | 6cd06c7a8c549baa0f7b7e7451046c0f6a7c3980 /fs | |
| parent | SUNRPC: Prevent SYN+SYNACK+RST storms (diff) | |
| download | linux-90816d1ddacfb5a8b783f67e2c1a1bc77dc50ff4.tar.xz linux-90816d1ddacfb5a8b783f67e2c1a1bc77dc50ff4.zip | |
NFSv4.1/flexfiles: Don't mark the entire deviceid as bad for file errors
If the file was fenced and/or has been deleted on the DS, then we want
to retry pNFS after a layoutreturn with error report. If the server
cannot fix the problem, then we rely on it to tell us so in the
response to the LAYOUTGET.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index 4ec624cfcf8b..61ccf1122494 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -1075,18 +1075,26 @@ static int ff_layout_async_handle_error_v3(struct rpc_task *task, if (task->tk_status >= 0) return 0; - if (task->tk_status != -EJUKEBOX) { + switch (task->tk_status) { + /* File access problems. Don't mark the device as unavailable */ + case -EACCES: + case -ESTALE: + case -EISDIR: + case -EBADHANDLE: + case -ELOOP: + case -ENOSPC: + break; + case -EJUKEBOX: + nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY); + goto out_retry; + default: dprintk("%s DS connection error %d\n", __func__, task->tk_status); nfs4_mark_deviceid_unavailable(devid); - if (ff_layout_has_available_ds(lseg)) - return -NFS4ERR_RESET_TO_PNFS; - else - return -NFS4ERR_RESET_TO_MDS; } - - if (task->tk_status == -EJUKEBOX) - nfs_inc_stats(lseg->pls_layout->plh_inode, NFSIOS_DELAY); + /* FIXME: Need to prevent infinite looping here. */ + return -NFS4ERR_RESET_TO_PNFS; +out_retry: task->tk_status = 0; rpc_restart_call(task); rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); |