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linux-stable/fs
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J. Bruce Fields 10a68cdf10 nfsd: fix performance-limiting session calculation 
commit c54f24e338 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 20:10:09 +01:00
..
9p 9p: use inode->i_lock to protect i_size_write() under 32-bit 2019-03-23 20:09:38 +01:00
adfs adfs: use timespec64 for time conversion 2018-08-22 10:52:51 -07:00
affs
afs afs: Fix key refcounting in file locking code 2019-02-27 10:08:56 +01:00
autofs autofs: fix error return in autofs_fill_super() 2019-03-13 14:02:32 -07:00
befs
bfs bfs: add sanity check at bfs_fill_super() 2018-12-01 09:37:27 +01:00
btrfs Btrfs: fix corruption reading shared and compressed extents after hole punching 2019-03-23 20:10:00 +01:00
cachefiles fscache, cachefiles: remove redundant variable 'cache' 2018-12-17 09:24:40 +01:00
ceph ceph: avoid repeatedly adding inode to mdsc->snap_flush_list 2019-02-27 10:08:50 +01:00
cifs CIFS: Fix read after write for files with read caching 2019-03-23 20:09:56 +01:00
coda
configfs
cramfs Cramfs: fix abad comparison when wrap-arounds occur 2018-11-13 11:08:55 -08:00
crypto crypto: speck - remove Speck 2018-11-13 11:08:46 -08:00
debugfs debugfs: fix debugfs_rename parameter checking 2019-02-15 08:10:11 +01:00
devpts fs/devpts: always delete dcache dentry-s in dput() 2019-03-23 20:09:59 +01:00
dlm dlm: Don't swamp the CPU with callbacks queued during recovery 2019-02-12 19:46:58 +01:00
ecryptfs
efivarfs efivars: Call guid_parse() against guid_t type of variable 2018-07-22 14:13:44 +02:00
efs
exofs fs/exofs: fix potential memory leak in mount option parsing 2018-11-27 16:13:00 +01:00
exportfs exportfs: do not read dentry after free 2018-12-17 09:24:35 +01:00
ext2 ext2: Fix underflow in ext2_max_size() 2019-03-23 20:10:03 +01:00
ext4 ext4: fix crash during online resizing 2019-03-23 20:10:02 +01:00
f2fs f2fs: wait on atomic writes to count F2FS_CP_WB_DATA 2019-03-19 13:12:41 +01:00
fat fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() 2018-10-13 09:31:03 +02:00
freevxfs
fscache fscache: fix race between enablement and dropping of object 2018-12-17 09:24:40 +01:00
fuse fuse: handle zero sized retrieve correctly 2019-02-12 19:47:24 +01:00
gfs2 gfs2: Fix missed wakeups in find_insert_glock 2019-03-13 14:02:40 -07:00
hfs hfs: do not free node before using 2018-12-17 09:24:41 +01:00
hfsplus hfsplus: do not free node before using 2018-12-17 09:24:41 +01:00
hostfs vfs: discard ATTR_ATTR_FLAG 2018-08-17 16:20:28 -07:00
hpfs hpfs: remove unnecessary checks on the value of r when assigning error code 2018-08-25 12:42:33 -07:00
hugetlbfs hugetlbfs: fix races and page leaks during migration 2019-03-05 17:58:53 +01:00
isofs isofs: reject hardware sector size > 2048 bytes 2018-08-21 11:37:41 +02:00
jbd2 jbd2: fix compile warning when using JBUFFER_TRACE 2019-03-23 20:10:06 +01:00
jffs2 jffs2: Fix use of uninitialized delayed_work, lockdep breakage 2019-01-26 09:32:37 +01:00
jfs Just one jfs patch for 4.19 2018-08-15 22:47:23 -07:00
kernfs fix cgroup_do_mount() handling of failure exits 2019-03-23 20:09:53 +01:00
lockd lockd: Show pid of lockd for remote locks 2019-01-13 09:51:08 +01:00
minix
nfs NFS: Don't recoalesce on error in nfs_pageio_complete_mirror() 2019-03-23 20:10:09 +01:00
nfs_common
nfsd nfsd: fix performance-limiting session calculation 2019-03-23 20:10:09 +01:00
nilfs2 nilfs2: convert to SPDX license tags 2018-09-04 16:45:02 -07:00
nls
notify inotify: Fix fd refcount leak in inotify_add_watch(). 2019-01-31 08:14:34 +01:00
ntfs ntfs: mft: remove VLA usage 2018-08-17 16:20:27 -07:00
ocfs2 ocfs2: improve ocfs2 Makefile 2019-02-12 19:47:18 +01:00
omfs
openpromfs
orangefs orangefs: remove redundant pointer orangefs_inode 2018-08-14 12:07:14 -04:00
overlayfs ovl: Do not lose security.capability xattr over metadata file copy-up 2019-03-23 20:09:59 +01:00
proc proc: fix /proc/net/* after setns(2) 2019-03-13 14:02:32 -07:00
pstore pstore/ram: Do not treat empty buffers as valid 2019-01-26 09:32:37 +01:00
qnx4
qnx6
quota quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls. 2019-01-26 09:32:42 +01:00
ramfs
reiserfs reiserfs: propagate errors from fill_with_dentries() properly 2018-11-27 16:12:59 +01:00
romfs
squashfs Squashfs: Compute expected length from inode size rather than block length 2018-08-02 09:34:02 -07:00
sysfs Driver core patches for 4.19-rc1 2018-08-18 11:44:53 -07:00
sysv sysv: return 'err' instead of 0 in __sysv_write_inode 2018-12-17 09:24:30 +01:00
tracefs tracefs: Annotate tracefs_ops with __ro_after_init 2018-07-31 11:32:44 -04:00
ubifs ubifs: Handle re-linking of inodes correctly while recovery 2018-12-29 13:37:55 +01:00
udf udf: Fix BUG on corrupted inode 2019-02-12 19:47:09 +01:00
ufs fs/ufs: use ktime_get_real_seconds for sb and cg timestamps 2018-08-17 16:20:27 -07:00
xfs xfs: eof trim writeback mapping as soon as it is cached 2019-02-12 19:47:23 +01:00
aio.c aio: Fix locking in aio_poll() 2019-03-10 07:17:21 +01:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c Here are the main MIPS changes for 4.19. 2018-08-13 19:24:32 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c Revert "exec: load_script: don't blindly truncate shebang string" 2019-02-15 09:09:54 +01:00
block_dev.c blockdev: Fix livelocks on loop device 2019-01-22 21:40:36 +01:00
buffer.c fs: ratelimit __find_get_block_slow() failure message. 2019-03-13 14:02:38 -07:00
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c media: dvb/audio.h: get rid of unused APIs 2018-07-30 16:21:49 -04:00
coredump.c
d_path.c
dax.c dax: Use non-exclusive wait in wait_entry_unlocked() 2019-01-09 17:38:46 +01:00
dcache.c fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb() 2019-02-06 17:30:11 +01:00
dcookies.c
direct-io.c direct-io: allow direct writes to empty inodes 2019-03-05 17:58:50 +01:00
drop_caches.c fs/drop_caches.c: avoid softlockups in drop_pagecache_sb() 2019-03-13 14:02:32 -07:00
eventfd.c
eventpoll.c fs/epoll: drop ovflist branch prediction 2019-02-12 19:47:19 +01:00
exec.c exec: Fix mem leak in kernel_read_file 2019-03-10 07:17:21 +01:00
fcntl.c signal: Don't send signals to tasks that don't exist 2018-08-15 23:03:20 -05:00
fhandle.c
file.c
file_table.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
filesystems.c
fs-writeback.c writeback: synchronize sync(2) against cgroup writeback membership switches 2019-03-05 17:58:50 +01:00
fs_pin.c
fs_struct.c
inode.c Revert "mm: don't reclaim inodes with many attached pages" 2019-02-20 10:25:47 +01:00
internal.h overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
ioctl.c vfs: fix FIGETBSZ ioctl on an overlayfs file 2018-11-21 09:19:14 +01:00
iomap.c iomap: fix a use after free in iomap_dio_rw 2019-03-13 14:02:29 -07:00
Kconfig
Kconfig.binfmt kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
libfs.c
locks.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
Makefile
mbcache.c
mount.h
mpage.c mpage: mpage_readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
namei.c Revert "vfs: Allow userns root to call mknod on owned filesystems." 2018-12-29 13:37:54 +01:00
namespace.c mnt: fix __detach_mounts infinite loop 2018-11-21 09:19:22 +01:00
no-block.c
nsfs.c
open.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
pipe.c splice: don't merge into linked buffers 2019-03-23 20:09:59 +01:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c vfs: swap names of {do,vfs}_clone_file_range() 2018-09-24 10:54:01 +02:00
readdir.c
select.c
seq_file.c fs/seq_file.c: simplify seq_file iteration code and interface 2018-08-17 16:20:28 -07:00
signalfd.c
splice.c splice: don't merge into linked buffers 2019-03-23 20:09:59 +01:00
stack.c
stat.c
statfs.c
super.c Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
sync.c
timerfd.c Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 20:56:23 -07:00
userfaultfd.c userfaultfd: clear flag if remap event not enabled 2019-01-26 09:32:43 +01:00
utimes.c
xattr.c sysfs: Do not return POSIX ACL xattrs via listxattr 2018-09-18 07:30:48 -04:00