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pNFS: Fix CB_NOTIFY_DEVICEID CHANGE to consume ndc_immediate

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decode_devicenotify_args() gated the trailing ndc_immediate on
cbd_layout_type rather than cbd_notify_type, so the flag was never
consumed and a multi-item cnda_changes<> misaligned after the first
entry.

Fixes: 1be5683b03 ("pnfs: CB_NOTIFY_DEVICEID")
Cc: stable@vger.kernel.org
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Benjamin Coddington <bcodding@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@hammerspace.com>
This commit is contained in:
Benjamin Coddington 2026-09-15 08:22:06 -04:00 committed by Anna Schumaker
parent 32f0967ea2
commit a0cb76dc3b
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/callback_xdr.c
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@ -319,7 +319,7 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
memcpy(dev->cbd_dev_id.data, p, NFS4_DEVICEID4_SIZE);
p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) {
if (dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) {
p = xdr_inline_decode(xdr, sizeof(uint32_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);