mirror_zfs/module/os/freebsd/zfs
Ryan Moeller 009cc8e884
Make zc_nvlist_src_size limit tunable
We limit the size of nvlists passed to the kernel so a user cannot make
the kernel do an unreasonably large allocation.  On FreeBSD this limit
was 128 kiB, which turns out to be a bit too small when doing some
operations involving a large number of datasets or snapshots, for
example replication.

Make this limit tunable, with a platform-specific auto default.
Linux keeps its limit at KMALLOC_MAX_SIZE. FreeBSD uses 1/4 of the
system limit on user wired memory, which allows it to scale depending
on system configuration.

Reviewed-by: Matt Macy <mmacy@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Issue #6572 
Closes #10706
2020-08-18 09:33:55 -07:00
..
abd_os.c Include scatter_chunk_waste in arc_size 2020-08-17 20:04:04 -07:00
arc_os.c Changes to make openzfs build within FreeBSD buildworld 2020-07-31 21:30:31 -07:00
crypto_os.c Fix crypto build on FreeBSD HEAD 2020-05-30 12:54:57 -07:00
dmu_os.c Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
hkdf.c Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
kmod_core.c Release onexit/events with any missed zfsdev_state 2020-08-13 15:03:23 -07:00
spa_os.c Add prototypes 2020-06-18 12:21:32 -07:00
spa_stats.c Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sysctl_os.c Changes to make openzfs build within FreeBSD buildworld 2020-07-31 21:30:31 -07:00
vdev_file.c freebsd: changes necessary to coexist with dtrace in tree 2020-07-01 09:10:08 -07:00
vdev_geom.c freebsd: changes necessary to coexist with dtrace in tree 2020-07-01 09:10:08 -07:00
vdev_label_os.c Add support for boot environment data to be stored in the label 2020-05-07 09:36:33 -07:00
zfs_acl.c FreeBSD: fix merge error in zfs_acl_ids_create 2020-08-17 15:28:03 -07:00
zfs_ctldir.c Fix page fault in zfsctl_snapdir_getattr 2020-08-01 08:42:55 -07:00
zfs_debug.c Convert Linux-isms to FreeBSD-isms in platform zfs_debug.c 2020-07-31 21:25:35 -07:00
zfs_dir.c Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
zfs_file_os.c Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
zfs_fuid_os.c Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
zfs_ioctl_compat.c Changes to make openzfs build within FreeBSD buildworld 2020-07-31 21:30:31 -07:00
zfs_ioctl_os.c Make zc_nvlist_src_size limit tunable 2020-08-18 09:33:55 -07:00
zfs_onexit_os.c Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
zfs_vfsops.c FreeBSD: Add support for lockless lookup 2020-08-05 10:19:51 -07:00
zfs_vnops.c FreeBSD: update vaccess signature on most recent HEAD 2020-08-07 14:16:01 -07:00
zfs_znode.c FreeBSD: Add support for lockless lookup 2020-08-05 10:19:51 -07:00
zio_crypt.c Fix typos 2020-06-09 21:24:09 -07:00
zvol_os.c FreeBSD: Create taskq threads in appropriate proc 2020-08-17 11:01:19 -07:00