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| author | Christoph Hellwig <hch@lst.de> | 2015-10-09 15:03:26 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2015-10-09 16:11:40 -0400 |
| commit | 8c3ad9cb7343dc5f61b8cf3cdbe1016c5e7c2c8b (patch) | |
| tree | 3da3578adea31cc917590e79499b4349eb03e741 /fs | |
| parent | c91aed9896946721bb30705ea2904edb3725dd61 (diff) | |
| download | linux-stable-8c3ad9cb7343dc5f61b8cf3cdbe1016c5e7c2c8b.tar.gz linux-stable-8c3ad9cb7343dc5f61b8cf3cdbe1016c5e7c2c8b.tar.bz2 linux-stable-8c3ad9cb7343dc5f61b8cf3cdbe1016c5e7c2c8b.zip | |
nfsd/blocklayout: accept any minlength
Recent Linux clients have started to send GETLAYOUT requests with
minlength less than blocksize.
Servers aren't really allowed to impose this kind of restriction on
layouts; see RFC 5661 section 18.43.3 for details.
This has been observed to cause indefinite hangs on fsx runs on some
clients.
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/blocklayout.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index cdefaa331a07..c29d9421bd5e 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -56,14 +56,6 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp, u32 device_generation = 0; int error; - /* - * We do not attempt to support I/O smaller than the fs block size, - * or not aligned to it. - */ - if (args->lg_minlength < block_size) { - dprintk("pnfsd: I/O too small\n"); - goto out_layoutunavailable; - } if (seg->offset & (block_size - 1)) { dprintk("pnfsd: I/O misaligned\n"); goto out_layoutunavailable; |