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linux/fs/nfsd
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J. Bruce Fields c54f24e338 nfsd: fix performance-limiting session calculation 
We're unintentionally limiting the number of slots per nfsv4.1 session
to 10.  Often more than 10 simultaneous RPCs are needed for the best
performance.

This calculation was meant to prevent any one client from using up more
than a third of the limit we set for total memory use across all clients
and sessions.  Instead, it's limiting the client to a third of the
maximum for a single session.

Fix this.

Reported-by: Chris Tracy <ctracy@engr.scu.edu>
Cc: stable@vger.kernel.org
Fixes: de766e5704 "nfsd: give out fewer session slots as limit approaches"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
 		2019-02-21 10:47:00 -05:00
..
Kconfig block: make scsi_request and scsi ioctl support optional 2017-01-31 10:53:05 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acl.h nfsd4: remove nfs4_acl_new 2014-07-08 17:14:27 -04:00
auth.c nfsd: auth: Fix gid sorting when rootsquash enabled 2018-01-22 20:13:07 -08:00
auth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayout.c vfs/y2038: inode timestamps conversion to timespec64 2018-06-15 07:31:07 +09:00
blocklayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.h knfsd: Improve lookup performance in the duplicate reply cache using an rbtree 2018-10-29 16:58:04 -04:00
current_stateid.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c knfsd: Allow lockless lookups of the exports 2018-10-29 16:58:04 -04:00
export.h knfsd: Allow lockless lookups of the exports 2018-10-29 16:58:04 -04:00
fault_inject.c Lots of good bugfixes, including: 2017-11-18 11:22:04 -08:00
flexfilelayout.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idmap.h nfsd: Remove duplicate define of IDMAP_NAMESZ/IDMAP_TYPE_xx 2015-07-20 14:58:46 -04:00
lockd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
netns.h NFSD introduce async copy feature 2018-09-25 20:34:54 -04:00
nfs2acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs3acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs3proc.c NFSD: Handle full-length symlinks 2018-08-09 16:11:21 -04:00
nfs3xdr.c vfs: change inode times to use struct timespec64 2018-06-05 16:57:31 -07:00
nfs4acl.c nfsd: check permissions when setting ACLs 2016-06-24 12:11:52 -04:00
nfs4callback.c nfsd: fix an IS_ERR() vs NULL check 2019-02-06 15:37:14 -05:00
nfs4idmap.c knfsd: Lockless lookup of NFSv4 identities. 2018-10-29 16:58:04 -04:00
nfs4layouts.c nfsd: drop useless LIST_HEAD 2018-12-27 20:59:50 -05:00
nfs4proc.c NFSD remove OP_CACHEME from 4.2 op_flags 2018-12-14 12:52:15 -05:00
nfs4recover.c nfsd: fix a warning in __cld_pipe_upcall() 2018-11-28 18:36:03 -05:00
nfs4state.c nfsd: fix performance-limiting session calculation 2019-02-21 10:47:00 -05:00
nfs4xdr.c NFSD introduce async copy feature 2018-09-25 20:34:54 -04:00
nfscache.c mm: convert totalram_pages and totalhigh_pages variables to atomic 2018-12-28 12:11:47 -08:00
nfsctl.c nfsd4: fix crash on writing v4_end_grace before nfsd startup 2018-11-28 18:36:02 -05:00
nfsd.h nfsd4: support change_attr_type attribute 2018-06-17 10:41:31 -04:00
nfsfh.c nfsd: use true and false for boolean values 2018-08-09 16:11:21 -04:00
nfsfh.h This request is late, apologies. 2018-02-08 15:18:32 -08:00
nfsproc.c NFSD: Handle full-length symlinks 2018-08-09 16:11:21 -04:00
nfssvc.c race of nfsd inetaddr notifiers vs nn->nfsd_serv change 2017-11-27 16:45:11 -05:00
nfsxdr.c vfs: change inode times to use struct timespec64 2018-06-05 16:57:31 -07:00
pnfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
state.h NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
stats.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stats.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.c nfsd: move include of state.h from trace.c to trace.h 2015-10-23 15:57:29 -04:00
trace.h nfsd: Trace NFSv4 COMPOUND execution 2018-04-03 15:08:15 -04:00
vfs.c nfsd: Fix error return values for nfsd4_clone_file_range() 2019-02-06 15:32:05 -05:00
vfs.h nfsd: Add I/O trace points in the NFSv4 read proc 2018-04-03 15:08:15 -04:00
xdr.h NFSD: Clean up legacy NFS SYMLINK argument XDR decoders 2018-04-03 15:08:16 -04:00
xdr3.h NFSD: Clean up legacy NFS SYMLINK argument XDR decoders 2018-04-03 15:08:16 -04:00
xdr4.h NFSD introduce async copy feature 2018-09-25 20:34:54 -04:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00