wireguard-linux/fs/nfs/read.c, branch jd/unified-crypt-queue

NFS: Clean up process of marking inode stale.

2020-04-06T17:56:33Z

Instead of the various open coded calls to set the NFS_INO_STALE bit and call nfs_zap_caches(), consolidate them into a single function nfs_set_inode_stale(). Signed-off-by: Trond Myklebust

NFS: When resending after a short write, reset the reply count to zero

2020-01-15T15:54:33Z

If we're resending a write due to a short read or write, ensure we reset the reply count to zero. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

NFS: Clean up generic file read tracepoints

2020-01-15T15:54:32Z

Clean up the generic file read tracepoints so they do pass the full structures as arguments. Also ensure we report the number of bytes actually read. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

NFS: Fix spurious EIO read errors

2019-08-26T19:31:29Z

If the client attempts to read a page, but the read fails due to some spurious error (e.g. an ACCESS error or a timeout, ...) then we need to allow other processes to retry. Also try to report errors correctly when doing a synchronous readpage. Signed-off-by: Trond Myklebust

treewide: Add SPDX license identifier for missed files

2019-05-21T08:50:45Z

Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

NFS: Add a helper to return a pointer to the open context of a struct nfs_page

2019-04-25T18:18:15Z

Add a helper for when we remove the explicit pointer to the open context. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

NFS: Remove unused argument from nfs_create_request()

2019-04-25T18:18:14Z

All the callers of nfs_create_request() are now creating page group heads, so we can remove the redundant 'last' page argument. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

NFS: Pass error information to the pgio error cleanup routine

2019-02-20T20:14:20Z

Allow the caller to pass error information when cleaning up a failed I/O request so that we can conditionally take action to cancel the request altogether if the error turned out to be fatal. Signed-off-by: Trond Myklebust

NFS: Remove private spinlock in struct nfs_pgio_header

2018-09-30T19:35:17Z

Now that each struct nfs_pgio_header corresponds to one RPC call, we only have one writer to the struct nfs_pgio_header. Signed-off-by: Trond Myklebust

NFS: Add static NFS I/O tracepoints

2017-09-12T02:20:38Z

Tools like tcpdump and rpcdebug can be very useful. But there are plenty of environments where they are difficult or impossible to use. For example, we've had customers report I/O failures during workloads so heavy that collecting network traffic or enabling RPC debugging are themselves onerous. The kernel's static tracepoints are lightweight (less likely to introduce timing changes) and efficient (the trace data is compact). They also work in scenarios where capturing network traffic is not possible due to lack of hardware support (some InfiniBand HCAs) or where data or network privacy is a concern. Introduce tracepoints that show when an NFS READ, WRITE, or COMMIT is initiated, and when it completes. Record the arguments and results of each operation, which are not shown by existing sunrpc module's tracepoints. For instance, the recorded offset and count can be used to match an "initiate" event to a "done" event. If an NFS READ result returns fewer bytes than requested or zero, seeing the EOF flag can be probative. Seeing an NFS4ERR_BAD_STATEID result is also indication of a particular class of problems. The timing information attached to each event record can often be useful as well. Usage example: [root@manet tmp]# trace-cmd record -e nfs:*initiate* -e nfs:*done /sys/kernel/debug/tracing/events/nfs/*initiate*/filter /sys/kernel/debug/tracing/events/nfs/*done/filter Hit Ctrl^C to stop recording ^CKernel buffer statistics: Note: "entries" are the entries left in the kernel ring buffer and are not recorded in the trace data. They should all be zero. CPU: 0 entries: 0 overrun: 0 commit overrun: 0 bytes: 3680 oldest event ts: 78.367422 now ts: 100.124419 dropped events: 0 read events: 74 ... and so on. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust