mirror_zfs/module/os/linux/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 Revise ARC shrinker algorithm 2020-07-31 21:10:52 -07:00
Makefile.in Cleanup linux module kbuild files 2020-06-10 09:24:15 -07:00
mmp_os.c Add zfs_multihost_interval tunable handler for FreeBSD 2020-06-23 13:32:42 -07:00
policy.c Linux 4.10 compat: has_capability() 2020-07-19 09:56:21 -07:00
qat_compress.c Fix QAT allocation failure return value 2020-01-06 11:17:53 -08:00
qat_crypt.c QAT related bug fixes 2019-09-12 13:33:44 -07:00
qat.c QAT related bug fixes 2019-09-12 13:33:44 -07:00
spa_misc_os.c Make spa_history_zone platform-dependent in kernel 2020-03-02 09:43:30 -08:00
spa_stats.c Mark functions as static 2020-06-18 12:20:38 -07:00
trace.c Enable use of DTRACE_PROBE* macros in "spl" module 2019-11-01 13:13:43 -07:00
vdev_disk.c Make struct vdev_disk_t be platform private 2020-06-16 11:43:33 -07:00
vdev_file.c Mark Linux fallocate extensions as specific to Linux 2019-11-30 15:40:22 -08:00
zfs_acl.c Mark functions as static 2020-06-18 12:20:38 -07:00
zfs_ctldir.c Eliminate Linux specific inode usage from common code 2019-12-11 11:53:57 -08:00
zfs_debug.c Linux 5.6 compat: time_t 2020-02-27 09:31:02 -08:00
zfs_dir.c Make use of ZFS_DEBUG consistent within kmod sources 2020-07-25 20:07:44 -07:00
zfs_file_os.c Re-share zfsdev_getminor and zfs_onexit_fd_hold 2020-02-28 14:50:32 -08:00
zfs_ioctl_os.c Make zc_nvlist_src_size limit tunable 2020-08-18 09:33:55 -07:00
zfs_sysfs.c Persistent L2ARC 2020-04-10 10:33:35 -07:00
zfs_vfsops.c Mark functions as static 2020-06-18 12:20:38 -07:00
zfs_vnops.c Make use of ZFS_DEBUG consistent within kmod sources 2020-07-25 20:07:44 -07:00
zfs_znode.c Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
zio_crypt.c Linux 4.14, 4.19, 5.0+ compat: SIMD save/restore 2019-10-24 10:17:33 -07:00
zpl_ctldir.c Eliminate Linux specific inode usage from common code 2019-12-11 11:53:57 -08:00
zpl_export.c Eliminate Linux specific inode usage from common code 2019-12-11 11:53:57 -08:00
zpl_file.c Mark functions as static 2020-06-18 12:20:38 -07:00
zpl_inode.c Mark functions as static 2020-06-18 12:20:38 -07:00
zpl_super.c linux: add basic fallocate(mode=0/2) compatibility 2020-06-18 11:22:11 -07:00
zpl_xattr.c Mark functions as static 2020-06-18 12:20:38 -07:00
zvol_os.c Linux 5.9 compat: make_request_fn replaced with submit_bio interface 2020-08-11 13:37:33 -07:00