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1b2dcc8c54
freebsd-skq/sys
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Mark Johnston 1b2dcc8c54 uma: Avoid depleting keg reserves when filling a bucket 
zone_import() fetches a free or partially free slab from the keg and
then uses its items to populate an array, typically filling a bucket.
If a single allocation causes the keg to drop below its minimum reserve,
the inner loop ends.  However, if the bucket is still not full and
M_USE_RESERVE is specified, the outer loop will continue to fetch items
from the keg.

If M_USE_RESERVE is specified and the number of free items is below the
reserved limit, we should return only a single item.  Otherwise, if the
bucket size is larger than the reserve, all of the reserved items may
end up in a single per-CPU bucket, invisible to other CPUs.

Reviewed by:	rlibby
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26771
2020-10-19 16:55:03 +00:00
..
amd64 vmx: Implement pmap (de)activation in C 2020-10-19 15:24:35 +00:00
arm Simplify preload_dump() condition 2020-10-15 20:21:15 +00:00
arm64 Remove unused labels from the arm64 casueword* 2020-10-19 15:52:42 +00:00
bsm
cam Fix sbuf_finish() error code check in user-space. 2020-10-13 23:29:06 +00:00
cddl Update OpenZFS to 2.0.0-rc3-gfc5966 2020-10-17 01:06:04 +00:00
compat Add compat.linux.dummy_rlimits, and disable by default. 2020-10-18 15:58:16 +00:00
conf [zfs] Remove a non-existent directory in the build infra 2020-10-18 22:37:58 +00:00
contrib Update OpenZFS to 2.0.0-rc3-gfc5966 2020-10-17 01:06:04 +00:00
crypto Add support for ESN in AES-NI crypto driver 2020-10-16 11:21:56 +00:00
ddb ddb: clean up empty lines in .c and .h files 2020-09-01 22:14:30 +00:00
dev Assign the reserved apic region (GAS entry) to the iommu domain msi_entry. 2020-10-19 15:50:58 +00:00
dts Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
fs Bump pseudofs size limit from 128kB to 1MB. The old limit could result 2020-10-16 09:58:10 +00:00
gdb gdb(4): Don't escape GDB special characters at application layer 2020-09-30 14:55:54 +00:00
geom Make g_attach() return ENXIO for orphaned providers; update various 2020-10-18 16:24:08 +00:00
gnu Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
i386 Fix for mis-interpretation of PCB_KERNFPU. 2020-10-14 23:01:41 +00:00
isa
kern vmem: Allocate btags before looping in vmem_xalloc() 2020-10-19 16:54:06 +00:00
kgssapi State kgssapi dependency on xdr. 2020-09-17 22:29:38 +00:00
libkern arc4random(9): Integrate with RANDOM_FENESTRASX push-reseed 2020-10-10 21:48:06 +00:00
mips Avoid dump_avail[] redefinition. 2020-10-14 22:51:40 +00:00
modules Update OpenZFS to 2.0.0-rc3-gfc5966 2020-10-17 01:06:04 +00:00
net Implement flowid calculation for outbound connections to balance 2020-10-18 17:15:47 +00:00
net80211 net80211: factor out the priv(9) checks into OS specifc code. 2020-10-18 21:34:04 +00:00
netgraph ng_l2tp: Fix callout synchronization in the rexmit timeout handler 2020-09-25 18:55:50 +00:00
netinet Implement flowid calculation for outbound connections to balance 2020-10-18 17:15:47 +00:00
netinet6 Implement flowid calculation for outbound connections to balance 2020-10-18 17:15:47 +00:00
netipsec Trigger soft lifetime expiration on sequence number 2020-10-16 11:27:01 +00:00
netpfil Add IPv4 fragments reassembling to NAT64LSN. 2020-10-13 18:57:42 +00:00
netsmb net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
nfs nfs: clean up empty lines in .c and .h files 2020-09-01 21:25:39 +00:00
nfsclient nfs: clean up empty lines in .c and .h files 2020-09-01 21:25:39 +00:00
nfsserver nfs: clean up empty lines in .c and .h files 2020-09-01 21:25:39 +00:00
nlm nlm: clean up empty lines in .c and .h files 2020-09-01 22:14:52 +00:00
ofed Allow IP over IB to work with multiple FIBs. 2020-10-13 20:41:51 +00:00
opencrypto Add support for ESN in cryptosoft 2020-10-16 11:18:13 +00:00
powerpc Avoid dump_avail[] redefinition. 2020-10-14 22:51:40 +00:00
riscv riscv: zero reserved PTE bits for L2 PTEs 2020-10-17 17:31:06 +00:00
rpc Fix a potential memory leak in the NFS over TLS handling code. 2020-09-05 00:50:52 +00:00
security mac_framework.h: fix build with DEBUG_VFS_LOCKS and !MAC 2020-09-03 20:30:52 +00:00
sys Manage MSI iommu pages. 2020-10-19 13:10:21 +00:00
teken Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
tests Add small tool to invoke kernel test framework tests. 2020-09-02 09:20:40 +00:00
tools Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
ufs Do not leak B_BARRIER. 2020-10-08 22:41:02 +00:00
vm uma: Avoid depleting keg reserves when filling a bucket 2020-10-19 16:55:03 +00:00
x86 Assign the reserved apic region (GAS entry) to the iommu domain msi_entry. 2020-10-19 15:50:58 +00:00
xdr xdr: clean up empty lines in .c and .h files 2020-09-01 22:13:28 +00:00
xen xen: clean up empty lines in .c and .h files 2020-09-01 21:21:55 +00:00
Makefile