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iv/linux

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Alexander Aring 2267b2e845 lockd: introduce safe async lock op

[ Upstream commit 2dd10de8e6bcbacf85ad758b904543c294820c63 ]

This patch reverts mostly commit 40595cdc93ed ("nfs: block notification
on fs with its own ->lock") and introduces an EXPORT_OP_ASYNC_LOCK
export flag to signal that the "own ->lock" implementation supports
async lock requests. The only main user is DLM that is used by GFS2 and
OCFS2 filesystem. Those implement their own lock() implementation and
return FILE_LOCK_DEFERRED as return value. Since commit 40595cdc93ed
("nfs: block notification on fs with its own ->lock") the DLM
implementation were never updated. This patch should prepare for DLM
to set the EXPORT_OP_ASYNC_LOCK export flag and update the DLM
plock implementation regarding to it.

Acked-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

2024-04-10 16:19:29 +02:00

clnt4xdr.c

lockd: set file_lock start and end when decoding nlm4 testargs

2023-03-30 12:47:56 +02:00

clntlock.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

clntproc.c

lockd: Make two symbols static

2019-07-03 17:52:09 -04:00

clntxdr.c

NFS: Remove print_overflow_msg()