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linux-stable/fs/nfsd
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Dai Ngo f4e44b3933 NFSD: delay unmount source's export after inter-server copy completed. 
Currently the source's export is mounted and unmounted on every
inter-server copy operation. This patch is an enhancement to delay
the unmount of the source export for a certain period of time to
eliminate the mount and unmount overhead on subsequent copy operations.

After a copy operation completes, a work entry is added to the
delayed unmount list with an expiration time. This list is serviced
by the laundromat thread to unmount the export of the expired entries.
Each time the export is being used again, its expiration time is
extended and the entry is re-inserted to the tail of the list.

The unmount task and the mount operation of the copy request are
synced to make sure the export is not unmounted while it's being
used.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2021-05-25 17:06:51 -04:00
..
acl.h nfsd: eliminate an unnecessary acl size limit 2019-08-28 21:13:45 -04:00
auth.c nfsd: auth: Fix gid sorting when rootsquash enabled 2018-01-22 20:13:07 -08:00
auth.h
blocklayout.c block: remove unnecessary argument from blk_execute_rq 2021-01-24 21:52:39 -07:00
blocklayoutxdr.c
blocklayoutxdr.h
cache.h nfsd4: make drc_slab global, not per-net 2020-06-01 17:44:45 -04:00
current_stateid.h
export.c idmapped-mounts-v5.12 2021-02-23 13:39:45 -08:00
export.h nfsd: report per-export stats 2021-01-25 09:36:28 -05:00
fault_inject.c nfsd: no need to check return value of debugfs_create functions 2019-07-03 16:57:17 +02:00
filecache.c nfsd: Don't keep looking up unhashed files in the nfsd file cache 2021-03-06 16:41:47 -05:00
filecache.h nfsd: convert file cache to use over/underflow safe refcount 2020-02-06 11:22:55 -05:00
flexfilelayout.c
flexfilelayoutxdr.c
flexfilelayoutxdr.h
idmap.h
Kconfig NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
lockd.c
Makefile nfsd: remove fault injection code 2020-09-25 18:01:26 -04:00
netns.h NFSD: delay unmount source's export after inter-server copy completed. 2021-05-25 17:06:51 -04:00
nfs2acl.c NFSD: Update the NFSv2 ACL ACCESS result encoder to use struct xdr_stream 2021-03-22 10:19:01 -04:00
nfs3acl.c NFSD: Update the NFSv3 SETACL result encoder to use struct xdr_stream 2021-03-22 10:19:02 -04:00
nfs3proc.c NFSD: Reduce svc_rqst::rq_pages churn during READDIR operations 2021-03-22 10:18:56 -04:00
nfs3xdr.c NFSD: Clean up NFSDDBG_FACILITY macro 2021-03-22 10:19:02 -04:00
nfs4acl.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
nfs4callback.c NFSD: Remove the nfsd_cb_work and nfsd_cb_done tracepoints 2021-05-18 13:44:04 -04:00
nfs4idmap.c nfsd: Use seq_putc() in two functions 2020-07-13 17:28:46 -04:00
nfs4layouts.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfs4proc.c NFSD: delay unmount source's export after inter-server copy completed. 2021-05-25 17:06:51 -04:00
nfs4recover.c nfsd: Log client tracking type log message as info instead of warning 2021-03-22 10:19:03 -04:00
nfs4state.c NFSD: delay unmount source's export after inter-server copy completed. 2021-05-25 17:06:51 -04:00
nfs4xdr.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
nfscache.c nfsd: protect concurrent access to nfsd stats counters 2021-01-25 09:36:27 -05:00
nfsctl.c nfsd: Fix fall-through warnings for Clang 2021-04-20 16:55:07 -04:00
nfsd.h NFSD: delay unmount source's export after inter-server copy completed. 2021-05-25 17:06:51 -04:00
nfsfh.c NFSD: Update the GETATTR3res encoder to use struct xdr_stream 2021-03-22 10:18:51 -04:00
nfsfh.h NFSD: Constify @fh argument of knfsd_fh_hash() 2021-05-18 13:44:03 -04:00
nfsproc.c Merge branch 'work.inode-type-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-04-27 10:57:42 -07:00
nfssvc.c NFSD: delay unmount source's export after inter-server copy completed. 2021-05-25 17:06:51 -04:00
nfsxdr.c NFSD: Clean up NFSDDBG_FACILITY macro 2021-03-22 10:19:02 -04:00
pnfs.h
state.h nfsd: track filehandle aliasing in nfs4_files 2021-04-19 16:41:36 -04:00
stats.c nfsd: protect concurrent access to nfsd stats counters 2021-01-25 09:36:27 -05:00
stats.h nfsd: report per-export stats 2021-01-25 09:36:28 -05:00
trace.c NFSD: Add SPDX header for fs/nfsd/trace.c 2020-11-30 13:00:24 -05:00
trace.h NFSD: Update nfsd_cb_args tracepoint 2021-05-18 13:44:04 -04:00
vfs.c nfsd: move some commit_metadata()s outside the inode lock 2021-05-25 17:06:51 -04:00
vfs.h NFSD: Update the NFSv3 ACCESS3res encoder to use struct xdr_stream 2021-03-22 10:18:52 -04:00
xdr.h NFSD: Clean up after updating NFSv2 ACL encoders 2021-03-22 10:19:01 -04:00
xdr3.h NFSD: Clean up after updating NFSv3 ACL encoders 2021-03-22 10:19:02 -04:00
xdr4.h NFSD add vfs_fsync after async copy is done 2021-05-25 17:06:51 -04:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00