Rich Ercolani 2ef1ce66f5 Handle partial reads in zfs_read ... Currently, dmu_read_uio_dnode can read 64K of a requested 1M in one loop, get EFAULT back from zfs_uiomove() (because the iovec only holds 64k), and return EFAULT, which turns into EAGAIN on the way out. EAGAIN gets interpreted as "I didn't read anything", the caller tries again without consuming the 64k we already read, and we're stuck. This apparently works on newer kernels because the caller which breaks on older Linux kernels by happily passing along a 1M read request and a 64k iovec just requests 64k at a time. With this, we now won't return EFAULT if we got a partial read. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rich Ercolani <rincebrain@gmail.com> Closes #12370 Closes #12509 Closes #12516		2021-11-12 16:31:55 -08:00
..
abd.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
aggsum.c
arc.c	Avoid deadlock when removing L2ARC devices under I/O	2021-06-23 13:22:15 -07:00
blkptr.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
bplist.c
bpobj.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bptree.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bqueue.c
btree.c	Fix typo in btree.c	2020-08-17 15:25:37 -07:00
dataset_kstats.c
dbuf_stats.c	Eliminate gratuitous bzeroing in dbuf_stats_hash_table_data	2020-10-01 12:22:54 -07:00
dbuf.c	Remove UIO_ZEROCOPY functions structures	2021-11-12 16:31:55 -08:00
ddt_zap.c
ddt.c	Tinker with slop space accounting with dedup	2021-09-22 15:19:08 -07:00
dmu_diff.c
dmu_object.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
dmu_objset.c	Relax special_small_blocks assertion.	2021-01-24 16:06:16 -08:00
dmu_recv.c	Fix dmu_recv_stream test for resumable	2021-06-23 13:22:15 -07:00
dmu_redact.c	Fix dnode refcount tracking	2020-11-11 11:03:24 -08:00
dmu_send.c	implicit conversion from 'boolean_t' to 'ds_hold_flags_t'	2021-01-05 10:30:19 -08:00
dmu_traverse.c	zil_parse: make callback parameters const	2020-10-16 13:01:53 -07:00
dmu_tx.c
dmu_zfetch.c	Expose zfetch_max_idistance tunable	2020-10-16 13:02:39 -07:00
dmu.c	Extending FreeBSD UIO Struct	2021-11-12 16:31:55 -08:00
dnode_sync.c	dnode_sync is careless with range tree	2020-08-27 16:07:05 -07:00
dnode.c	Initialize dn_next_type[] in the dnode constructor	2021-09-22 15:19:08 -07:00
dsl_bookmark.c	Fix kernel panic induced by redacted send	2020-12-23 14:34:59 -08:00
dsl_crypt.c	Prune dead branch reported by Coverity	2020-10-01 12:20:16 -07:00
dsl_dataset.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
dsl_deadlist.c	Livelist logic should handle dedup blkptrs	2021-09-22 15:19:08 -07:00
dsl_deleg.c
dsl_destroy.c	Fix i/o error handling of livelists and zap iteration	2020-08-05 10:22:09 -07:00
dsl_dir.c	Add 'zfs rename -u' to rename without remounting	2020-09-03 16:16:15 -07:00
dsl_pool.c
dsl_prop.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
dsl_scan.c	Update references to nonexistent man pages in code	2020-10-30 16:04:41 -07:00
dsl_synctask.c	nowait synctask must succeed	2020-09-09 10:25:59 -07:00
dsl_userhold.c
edonr_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
fm.c	file reference counts can get corrupted	2021-09-22 15:19:08 -07:00
gzip.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
hkdf.c
lz4.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
lzjb.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
Makefile.in	Share zfs_fsync, zfs_read, zfs_write, et al between Linux and FreeBSD	2020-12-23 14:34:59 -08:00
metaslab.c	Update references to nonexistent man pages in code	2020-10-30 16:04:41 -07:00
mmp.c	Initialize mmp_last_write when the mmp thread starts	2020-09-09 10:26:04 -07:00
multilist.c	Make use of ZFS_DEBUG consistent within kmod sources	2020-07-25 20:07:44 -07:00
objlist.c
pathname.c	Replace ZFS on Linux references with OpenZFS	2020-10-16 13:01:24 -07:00
range_tree.c	Fix incorrect deletion order in range_tree_add_impl gap case	2020-10-16 13:05:23 -07:00
refcount.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
rrwlock.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
sa.c	Extending FreeBSD UIO Struct	2021-11-12 16:31:55 -08:00
sha256.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
skein_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_boot.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_checkpoint.c
spa_config.c	Cleaning up uio headers	2021-11-12 16:31:55 -08:00
spa_errlog.c
spa_history.c	Update references to nonexistent man pages in code	2020-10-30 16:04:41 -07:00
spa_log_spacemap.c
spa_misc.c	Fix unfortunate NULL in spa_update_dspace	2021-09-22 15:19:08 -07:00
spa_stats.c	FreeBSD: Add support for procfs_list	2020-10-01 12:18:56 -07:00
spa.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
space_map.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
space_reftree.c
THIRDPARTYLICENSE.cityhash
THIRDPARTYLICENSE.cityhash.descrip
txg.c	Replace cv_{timed}wait_sig with cv_{timed}wait_idle where appropriate	2020-09-09 10:21:01 -07:00
uberblock.c
unique.c
vdev_cache.c
vdev_indirect_births.c
vdev_indirect_mapping.c
vdev_indirect.c	ZTS: fix removal_condense_export test case	2021-06-23 13:22:14 -07:00
vdev_initialize.c	Cancel TRIM / initialize on FAULTED non-writeable vdevs	2021-06-23 13:22:14 -07:00
vdev_label.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
vdev_mirror.c	vdev_ashift should only be set once	2020-09-18 12:40:20 -07:00
vdev_missing.c	Import vdev ashift optimization from FreeBSD	2020-08-21 12:53:17 -07:00
vdev_queue.c	Fix for "Reduce latency effects of non-interactive I/O"	2020-12-23 13:09:17 -08:00
vdev_raidz_math_aarch64_neon_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_aarch64_neon.c
vdev_raidz_math_aarch64_neonx2.c
vdev_raidz_math_avx2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_avx512bw.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math_avx512f.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_impl.h
vdev_raidz_math_powerpc_altivec_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_powerpc_altivec.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
vdev_raidz_math_scalar.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
vdev_raidz_math_sse2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_ssse3.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math.c	Reduce fletcher4 and raidz benchmark times	2020-12-23 14:34:59 -08:00
vdev_raidz.c	Avoid posting duplicate zpool events	2020-09-09 10:26:00 -07:00
vdev_rebuild.c	nowait synctask must succeed	2020-09-09 10:25:59 -07:00
vdev_removal.c	special device removal space accounting fixes	2020-12-23 14:34:59 -08:00
vdev_root.c	Import vdev ashift optimization from FreeBSD	2020-08-21 12:53:17 -07:00
vdev_trim.c	Cancel TRIM / initialize on FAULTED non-writeable vdevs	2021-06-23 13:22:14 -07:00
vdev.c	Rescan enclosure sysfs path on import	2021-11-12 16:31:55 -08:00
zap_leaf.c
zap_micro.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
zap.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
zcp_get.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zcp_global.c
zcp_iter.c
zcp_set.c
zcp_synctask.c	filesystem_limit/snapshot_limit is incorrectly enforced against root	2020-07-11 17:18:02 -07:00
zcp.c	Channel program may spuriously fail with "memory limit exhausted"	2020-11-12 09:02:00 -08:00
zfeature.c	Throw const on some strings	2020-10-16 12:55:56 -07:00
zfs_byteswap.c
zfs_fm.c	Ratelimit deadman zevents as with delay zevents	2021-06-23 13:22:14 -07:00
zfs_fuid.c	Fix regression in POSIX mode behavior	2021-06-23 13:22:14 -07:00
zfs_ioctl.c	Cleaning up uio headers	2021-11-12 16:31:55 -08:00
zfs_log.c	Initialize all fields in zfs_log_xvattr()	2021-09-22 15:19:08 -07:00
zfs_onexit.c	file reference counts can get corrupted	2021-09-22 15:19:08 -07:00
zfs_quota.c
zfs_ratelimit.c
zfs_replay.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
zfs_rlock.c	Add a "try" operation for range locks	2020-07-06 11:53:31 -07:00
zfs_sa.c	Extending FreeBSD UIO Struct	2021-11-12 16:31:55 -08:00
zfs_vnops.c	Handle partial reads in zfs_read	2021-11-12 16:31:55 -08:00
zil.c	Zero pad bytes following TX_WRITE log data	2021-09-22 15:19:08 -07:00
zio_checksum.c
zio_compress.c	Use fallthrough macro	2021-11-12 15:24:36 -08:00
zio_inject.c
zio.c	Avoid deadlock when removing L2ARC devices under I/O	2021-06-23 13:22:15 -07:00
zle.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zrlock.c
zthr.c	Retain thread name when resuming a zthr	2020-09-09 10:21:16 -07:00
zvol.c	Fix zfs_get_data access to files with wrong generation	2021-06-23 13:22:15 -07:00