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de198f2d95
mirror_zfs/include/os/freebsd/spl/sys
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Brian Behlendorf de198f2d95
Fix lseek(SEEK_DATA/SEEK_HOLE) mmap consistency 
When using lseek(2) to report data/holes memory mapped regions of
the file were ignored.  This could result in incorrect results.
To handle this zfs_holey_common() was updated to asynchronously
writeback any dirty mmap(2) regions prior to reporting holes.

Additionally, while not strictly required, the dn_struct_rwlock is
now held over the dirty check to prevent the dnode structure from
changing.  This ensures that a clean dnode can't be dirtied before
the data/hole is located.  The range lock is now also taken to
ensure the call cannot race with zfs_write().

Furthermore, the code was refactored to provide a dnode_is_dirty()
helper function which checks the dnode for any dirty records to
determine its dirtiness.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Rich Ercolani <rincebrain@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #11900
Closes #12724
2021-11-07 14:27:44 -07:00
..
acl_impl.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
acl.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
atomic.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
byteorder.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
callb.h Fix typos 2020-06-09 21:24:09 -07:00
ccompat.h FreeBSD: Add support for lockless lookup 2020-08-05 10:19:51 -07:00
ccompile.h Remove overlooked __sun_attr__ based macros 2021-07-27 09:49:11 -07:00
cmn_err.h Remove overlooked __sun_attr__ based macros 2021-07-27 09:49:11 -07:00
condvar.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
cred.h FreeBSD: Define crgetzoneid appropriately 2020-08-31 19:42:26 -07:00
ctype.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
debug.h Microoptimizations for VERIFY() and friends 2021-03-11 17:16:09 -08:00
dirent.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
disp.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
dkio.h Remove unnecessary references to slavery 2020-06-10 17:07:59 -07:00
extdirent.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
fcntl.h FreeBSD: fix HEAD build, conditionally remove FDSYNC defines 2021-01-23 15:39:55 -08:00
file.h Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
freebsd_rwlock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
idmap.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
inttypes.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
isa_defs.h Prefix zfs internal endian checks with _ZFS 2020-07-28 13:02:49 -07:00
kidmap.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
kmem_cache.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
kmem.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
kstat.h Remove pool io kstats (#12212) 2021-06-10 08:27:33 -07:00
list_impl.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
list.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
lock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
Makefile.am Introduce write-mostly sums 2021-05-27 14:27:29 -06:00
misc.h Consolidate zfs_holey and zfs_access 2020-10-31 09:40:08 -07:00
mod_os.h Restore FreeBSD sysctl processing for arc.min and arc.max 2021-08-16 09:35:19 -06:00
mode.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
mount.h freebsd: changes necessary to coexist with dtrace in tree 2020-07-01 09:10:08 -07:00
mutex.h FreeBSD: Don't require zeroing new locks before init 2020-06-13 10:58:10 -07:00
param.h Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
policy.h Share zfs_fsync, zfs_read, zfs_write, et al between Linux and FreeBSD 2020-10-21 14:08:06 -07:00
proc.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
processor.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
procfs_list.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
random.h FreeBSD: fix compilation of FreeBSD world after 29274c9f6 2021-06-25 10:28:51 -07:00
rwlock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sdt.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sid.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
sig.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
simd_x86.h FreeBSD: Sort out kernel FPU headers for 12.1-REL 2020-10-02 17:48:45 -07:00
simd.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
spl_condvar.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
string.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
strings.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sunddi.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
sysmacros.h Introduce CPU_SEQID_UNSTABLE 2020-11-02 11:51:12 -08:00
systeminfo.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
systm.h Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
taskq.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
thread.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
time.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
timer.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
trace_zfs.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
trace.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
types32.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
types.h FreeBSD: minor_t needs to be signed so that -1 is recognized as such 2021-01-07 10:41:27 -08:00
uio.h Cleaning up uio headers 2021-02-20 20:16:50 -08:00
uuid.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
vfs.h Remove unimplemented virus scanning hooks 2021-05-10 22:02:25 -07:00
vm.h Use new FreeBSD API to largely eliminate object locking 2020-04-17 09:30:26 -07:00
vmsystm.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
vnode_impl.h Fix various typos 2021-04-02 18:52:15 -07:00
vnode.h Fix lseek(SEEK_DATA/SEEK_HOLE) mmap consistency 2021-11-07 14:27:44 -07:00
wmsum.h Introduce write-mostly sums 2021-05-27 14:27:29 -06:00
zmod.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
zone.h FreeBSD: Simplify INGLOBALZONE 2020-08-31 19:43:08 -07:00