| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 255/309] nfsd: Return the correct number of bytes written to the file | Date | Mon, 10 Feb 2020 04:33:31 -0800 |
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From: Trond Myklebust <trondmy@gmail.com>
commit 09a80f2aef06b7c86143f5c14efd3485e0d2c139 upstream.
We must allow for the fact that iov_iter_write() could have returned a short write (e.g. if there was an ENOSPC issue).
Fixes: d890be159a71 "nfsd: Add I/O trace points in the NFSv4 write path" Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/nfsd/vfs.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -975,6 +975,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, s host_err = vfs_iter_write(file, &iter, &pos, flags); if (host_err < 0) goto out_nfserr; + *cnt = host_err; nfsdstats.io_write += *cnt; fsnotify_modify(file);
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