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b2f003c4f4
mirror_zfs/module/zfs
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Brian Behlendorf b2f003c4f4 Fix statfs(2) for 32-bit user space 
When handling a 32-bit statfs() system call the returned fields,
although 64-bit in the kernel, must be limited to 32-bits or an
EOVERFLOW error will be returned.

This is less of an issue for block counts since the default
reported block size in 128KiB. But since it is possible to
set a smaller block size, these values will be scaled as
needed to fit in a 32-bit unsigned long.

Unlike most other filesystems the total possible file counts
are more likely to overflow because they are calculated based
on the available free space in the pool. In order to prevent
this the reported value must be capped at 2^32-1. This is
only for statfs(2) reporting, there are no changes to the
internal ZFS limits.

Reviewed-by: Andreas Dilger <andreas.dilger@whamcloud.com>
Reviewed-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #7927
Closes #7122
Closes #7937
2018-11-08 14:38:28 -08:00
..
abd.c Update for cppcheck v1.80 2018-01-30 10:27:31 -06:00
arc.c Fix zfs_arc_max minimum tuning 2018-05-07 17:19:57 -07:00
blkptr.c OpenZFS 8067 - zdb should be able to dump literal embedded block pointer 2017-07-07 11:28:01 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c Don't dirty bpobj if it has no entries 2017-05-26 11:42:10 -07:00
bptree.c OpenZFS 7082 - bptree_iterate() passes wrong args to zfs_dbgmsg() 2017-01-17 14:49:24 -08:00
bqueue.c Call cv_signal() with mutex held 2017-06-26 14:36:49 -07:00
dbuf_stats.c Improved dnode allocation and dmu_hold_impl() (#6611) 2017-09-13 15:46:15 -07:00
dbuf.c Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
ddt_zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt.c Cache ddt_get_dedup_dspace() value if there was no ddt changes 2016-12-02 16:59:35 -07:00
dmu_diff.c OpenZFS 6950 - ARC should cache compressed data 2016-09-13 09:58:33 -07:00
dmu_object.c Fix 'zfs recv' of non large_dnode send streams 2018-07-06 02:46:51 -07:00
dmu_objset.c Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
dmu_send.c Fix 'zfs recv' of non large_dnode send streams 2018-07-06 02:46:51 -07:00
dmu_traverse.c Fix hung z_zvol tasks during 'zfs receive' 2018-05-07 17:19:57 -07:00
dmu_tx.c OpenZFS 8997 - ztest assertion failure in zil_lwb_write_issue 2018-07-06 02:46:51 -07:00
dmu_zfetch.c OpenZFS 8835 - Speculative prefetch in ZFS not working for misaligned reads 2018-01-30 10:27:31 -06:00
dmu.c Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
dnode_sync.c Fix problems receiving reallocated dnodes 2018-07-06 02:46:51 -07:00
dnode.c Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
dsl_bookmark.c OpenZFS 8377 - Panic in bookmark deletion 2017-06-30 11:11:01 -07:00
dsl_dataset.c OpenZFS 7600 - zfs rollback should pass target snapshot to kernel 2017-07-04 15:29:52 -07:00
dsl_deadlist.c OpenZFS 5428 - provide fts(), reallocarray(), and strtonum() 2017-07-08 20:35:35 -07:00
dsl_deleg.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
dsl_destroy.c OpenZFS 7254 - ztest failed assertion in ztest_dataset_dirobj_verify: dirobjs + 1 == usedobjs 2017-01-27 11:43:42 -08:00
dsl_dir.c Linux 4.18 compat: inode timespec -> timespec64 2018-07-06 02:46:51 -07:00
dsl_pool.c Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
dsl_prop.c Fix dsl_props_set_sync_impl to work with nested nvlist 2016-12-20 18:46:59 -08:00
dsl_scan.c OpenZFS 6939 - add sysevents to zfs core for commands 2017-07-12 21:28:13 -07:00
dsl_synctask.c Illumos 4951 - ZFS administrative commands should use reserved space 2015-05-04 09:41:10 -07:00
dsl_userhold.c OpenZFS 5428 - provide fts(), reallocarray(), and strtonum() 2017-07-08 20:35:35 -07:00
edonr_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
fm.c Linux 4.18 compat: inode timespec -> timespec64 2018-07-06 02:46:51 -07:00
gzip.c GZIP compression offloading with QAT accelerator 2017-03-22 17:58:47 -07:00
lz4.c Fix LZ4_uncompress_unknownOutputSize caused panic 2017-05-19 13:45:46 -07:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
metaslab.c Fix build with CONFIG_GCC_PLUGIN_RANDSTRUCT 2018-07-06 02:46:51 -07:00
mmp.c module param callbacks check for initialized spa 2018-07-06 02:46:51 -07:00
multilist.c OpenZFS 7968 - multi-threaded spa_sync() 2017-03-20 18:36:00 -07:00
pathname.c Add pn_alloc()/pn_free() functions 2016-04-21 09:49:25 -07:00
policy.c Take user namespaces into account in policy checks 2018-03-14 16:10:38 -07:00
qat_compress.c Bug fix in qat_compress.c for vmalloc addr check 2018-03-14 16:10:36 -07:00
qat_compress.h GZIP compression offloading with QAT accelerator 2017-03-22 17:58:47 -07:00
range_tree.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
refcount.c Linux 4.11 compat: avoid refcount_t name conflict 2017-02-28 16:10:18 -08:00
rrwlock.c Fix spelling 2017-01-03 11:31:18 -06:00
sa.c Fix kernel unaligned access on sparc64 2018-07-06 02:46:51 -07:00
sha256.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
skein_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Remove vn_rename and vn_remove dependency 2018-03-14 16:10:36 -07:00
spa_errlog.c OpenZFS 5428 - provide fts(), reallocarray(), and strtonum() 2017-07-08 20:35:35 -07:00
spa_history.c Emit history events for 'zpool create' 2017-12-04 17:21:03 -08:00
spa_misc.c Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
spa_stats.c Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
spa.c Update mmp_delay on sync or skipped, failed write 2018-05-07 17:19:57 -07:00
space_map.c OpenZFS 8023 - Panic destroying a metaslab deferred range tree 2017-04-09 16:12:35 -07:00
space_reftree.c OpenZFS 6328 - Fix cstyle errors in zfs codebase 2017-01-12 09:42:11 -08:00
trace.c OpenZFS 6531 - Provide mechanism to artificially limit disk performance 2016-05-26 10:11:51 -07:00
txg.c OpenZFS 8063 - verify that we do not attempt to access inactive txg 2017-05-10 13:52:22 -04:00
uberblock.c Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
unique.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
vdev_cache.c Fix wrong offset args in vdev_cache_write 2017-03-28 11:06:22 -07:00
vdev_disk.c Revert "zpool reopen should detect expanded devices" 2018-09-13 10:11:42 -07:00
vdev_file.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev_label.c Update mmp_delay on sync or skipped, failed write 2018-05-07 17:19:57 -07:00
vdev_mirror.c vdev_mirror: load balancing fixes 2018-01-30 10:27:30 -06:00
vdev_missing.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev_queue.c vdev_mirror: load balancing fixes 2018-01-30 10:27:30 -06:00
vdev_raidz_math_aarch64_neon_common.h ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_aarch64_neon.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_aarch64_neonx2.c ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx512bw.c ABD: Adapt avx512bw raidz assembly 2016-12-15 17:31:33 -08:00
vdev_raidz_math_avx512f.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
vdev_raidz_math_impl.h codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_scalar.c ABD Vectorized raidz 2016-11-29 14:34:33 -08:00
vdev_raidz_math_sse2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_ssse3.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz.c Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-12-04 17:21:39 -08:00
vdev_root.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev.c Revert "zpool reopen should detect expanded devices" 2018-09-13 10:11:42 -07:00
zap_leaf.c Fix ENOSPC in "Handle zap_add() failures in ..." 2018-07-06 02:46:51 -07:00
zap_micro.c Fix ENOSPC in "Handle zap_add() failures in ..." 2018-07-06 02:46:51 -07:00
zap.c Fix ENOSPC in "Handle zap_add() failures in ..." 2018-07-06 02:46:51 -07:00
zfeature_common.c OpenZFS 2932 - support crash dumps to raidz, etc. pools 2017-04-10 10:24:17 -07:00
zfeature.c OpenZFS 6328 - Fix cstyle errors in zfs codebase 2017-01-12 09:42:11 -08:00
zfs_acl.c OpenZFS 8966 - Source file zfs_acl.c, function zfs_aclset_common contains a use after end of the lifetime of a local variable 2018-03-14 16:10:36 -07:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Correctly handle errors from kern_path 2018-07-06 02:46:51 -07:00
zfs_debug.c Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
zfs_dir.c Fix ENOSPC in "Handle zap_add() failures in ..." 2018-07-06 02:46:51 -07:00
zfs_fm.c OpenZFS 6939 - add sysevents to zfs core for commands 2017-07-12 21:28:13 -07:00
zfs_fuid.c Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_ioctl.c Allow inherited properties in zfs_check_settable() 2018-07-06 02:46:51 -07:00
zfs_log.c OpenZFS 7578 - Fix/improve some aspects of ZIL writing 2017-06-09 09:15:37 -07:00
zfs_onexit.c zfsdev_getminor() should check for invalid file handles 2015-06-22 17:02:13 -07:00
zfs_replay.c Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_rlock.c Fix spelling 2017-01-03 11:31:18 -06:00
zfs_sa.c Modifying XATTRs doesnt change the ctime 2017-09-13 16:05:18 -07:00
zfs_vfsops.c Fix statfs(2) for 32-bit user space 2018-11-08 14:38:28 -08:00
zfs_vnops.c Fix ENOSPC in "Handle zap_add() failures in ..." 2018-07-06 02:46:51 -07:00
zfs_znode.c Linux 4.18 compat: inode timespec -> timespec64 2018-07-06 02:46:51 -07:00
zil.c OpenZFS 8997 - ztest assertion failure in zil_lwb_write_issue 2018-07-06 02:46:51 -07:00
zio_checksum.c Remove dependency on linear ABD 2017-03-29 12:24:51 -07:00
zio_compress.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
zio_inject.c Inject zinject(8) a percentage amount of dev errs 2017-06-16 17:21:11 -07:00
zio.c Reduce taskq and context-switch cost of zio pipe 2018-11-08 14:38:28 -08:00
zle.c Fix zle_decompress out of bound access 2018-03-14 16:10:36 -07:00
zpl_ctldir.c RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-07 17:19:57 -07:00
zpl_export.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
zpl_file.c RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-07 17:19:57 -07:00
zpl_inode.c Linux 4.18 compat: inode timespec -> timespec64 2018-07-06 02:46:51 -07:00
zpl_super.c Fix statfs(2) for 32-bit user space 2018-11-08 14:38:28 -08:00
zpl_xattr.c Update for cppcheck v1.80 2018-01-30 10:27:31 -06:00
zrlock.c OpenZFS 3746 - ZRLs are racy 2017-01-23 10:35:58 -08:00
zvol.c Linux compat 4.18: check_disk_size_change() 2018-07-06 02:46:51 -07:00