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Matt Macy 90df93417e ZFS/MFV: Use cached feature info in spa_add_feature_stats() 
commit 417104bdd3
Author: Ned Bass <bass6@llnl.gov>
Date:   Thu Feb 26 12:24:11 2015 -0800

    Use cached feature info in spa_add_feature_stats()

    Avoid issuing I/O to the pool when retrieving feature flags information.
    Trying to read the ZAPs from disk means that zpool clear would hang if
    the pool is suspended and recovery would require a reboot. To keep the
    feature stats resident in memory, we hang a cached nvlist off of the
    spa.  It is built up from disk the first time spa_add_feature_stats() is
    called, and refreshed thereafter using the cached feature reference
    counts. spa_add_feature_stats() gets called at pool import time so we
    can be sure the cached nvlist will be available if the pool is later
    suspended.

    Signed-off-by: Ned Bass <bass6@llnl.gov>
    Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
    Closes #3082
2018-08-10 23:42:11 +00:00
..
amd64 Futex support functions in linux.ko and linux32.ko on amd64 should be 2018-08-07 18:29:10 +00:00
arm Add support for pmap_enter(..., psind=1) to the armv6 pmap. In other words, 2018-08-08 16:55:01 +00:00
arm64 efirt: Don't enter EFI context early, convert addrs to KVA instead 2018-08-04 21:41:10 +00:00
bsm
cam Walk back r337554 while discussion continues 2018-08-10 19:19:07 +00:00
cddl ZFS/MFV: Use cached feature info in spa_add_feature_stats() 2018-08-10 23:42:11 +00:00
compat Use atomic_fcmpset_XXX() instead of atomic_cmpset_XXX() when possible 2018-08-09 09:39:32 +00:00
conf Rename head from -CURRENT to -ALPHA1 as part of the 2018-08-10 00:01:21 +00:00
contrib Correct a comment. Should have been detected by ipf_nat_in() not 2018-08-10 00:30:15 +00:00
crypto libmd: Always erase context in _Final method, and when doing 2018-07-20 07:01:28 +00:00
ddb add an option for ddb ps command to print process arguments 2018-08-09 11:21:31 +00:00
dev Fix misspellings of transmitter/transmitted 2018-08-10 20:37:32 +00:00
dts Remove Atmel AT91RM9200 and AT91SAM9 support. 2018-07-27 18:28:22 +00:00
fs Assorted fixes to handling of LayoutRecall callbacks, mostly error handling. 2018-08-08 20:21:45 +00:00
gdb amd64: Protect the kernel text, data, and BSS by setting the RW/NX bits 2018-03-06 14:28:37 +00:00
geom OpenCrypto: Convert sessions to opaque handles instead of integers 2018-07-18 00:56:25 +00:00
gnu dts: Update our copy to Linux 4.17 2018-06-14 07:12:10 +00:00
i386 Fix misspellings of transmitter/transmitted 2018-08-10 20:37:32 +00:00
isa Revert r330780, it was improperly tested and results in taking a spin 2018-03-11 20:13:15 +00:00
kern subr_prf: remove think-o that had returned to local patch 2018-08-10 15:35:02 +00:00
kgssapi OpenCrypto: Convert sessions to opaque handles instead of integers 2018-07-18 00:56:25 +00:00
libkern Sync strlcpy with userland version, again 2018-06-21 17:35:13 +00:00
mips Add pmap_is_valid_memattr(9). 2018-08-01 18:45:51 +00:00
modules uep(4): add evdev support 2018-08-05 11:14:13 +00:00
net pf: Increase default hash table size 2018-08-05 13:54:37 +00:00
net80211 Fix misspellings of transmitter/transmitted 2018-08-10 20:37:32 +00:00
netgraph Use if_tunnel_check_nesting() for ng_iface(4). 2018-08-03 22:55:58 +00:00
netinet Fix misspellings of transmitter/transmitted 2018-08-10 20:37:32 +00:00
netinet6 [ppc] Fix kernel panic when using BOOTP_NFSROOT 2018-08-09 14:04:51 +00:00
netipsec Use the new VNET_DEFINE_STATIC macro when we are defining static VNET 2018-07-24 16:35:52 +00:00
netpfil Use host byte order when comparing mss values. 2018-08-08 17:32:02 +00:00
netsmb Make timespecadd(3) and friends public 2018-07-30 15:46:40 +00:00
nfs Switch RIB and RADIX_NODE_HEAD lock from rwlock(9) to rmlock(9). 2018-06-16 08:26:23 +00:00
nfsclient style: Remove remaining deprecated MALLOC/FREE macros 2018-01-25 22:25:13 +00:00
nfsserver
nlm Use syscall_helper_register() to register syscalls and initialize though 2018-02-10 01:09:22 +00:00
ofed Only NULL check the VNET pointer when VIMAGE is enabled in ibcore. 2018-07-31 11:23:44 +00:00
opencrypto Make timespecadd(3) and friends public 2018-07-30 15:46:40 +00:00
powerpc powerpc: Add lwsync and ptesync 'sync' opcode variants to ddb disassembler 2018-08-10 03:28:40 +00:00
riscv Implement uma_small_alloc(), uma_small_free(). 2018-08-08 16:08:38 +00:00
rpc Set SO_SNDTIMEO in the client side krpc when CLSET_TIMEOUT is done. 2018-07-20 12:03:16 +00:00
security Require that MAC label buffers be able to store a non-empty string. 2018-08-01 03:46:07 +00:00
sparc64 Add pmap_is_valid_memattr(9). 2018-08-01 18:45:51 +00:00
sys Bring in timespce_get form NetBSD. 2018-08-10 15:16:30 +00:00
teken teken: Fix sequences header which was crossing the 80-col boundary 2018-05-29 08:41:44 +00:00
tests epoch_test: fix compile 2018-07-15 00:31:17 +00:00
tools Add dtb overlays support 2018-03-24 21:30:24 +00:00
ufs Put in place the framework for consolodating contiguous blocks into 2018-08-06 21:09:11 +00:00
vm Account for the lowmem handlers in the inactive queue scan target. 2018-08-09 18:25:49 +00:00
x86 Verify that each frame pointer lies within the thread's kstack. 2018-08-03 02:51:37 +00:00
xdr
xen xen: add missing file from r336474 2018-07-19 10:14:52 +00:00
Makefile