zfs/tests/runfiles
Brian Behlendorf 664d487a5d 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
2021-11-05 08:08:55 -07:00
..
Makefile.am Add sanity.run file 2020-12-03 10:49:39 -08:00
common.run Fix lseek(SEEK_DATA/SEEK_HOLE) mmap consistency 2021-11-05 08:08:55 -07:00
freebsd.run ZTS: Add tests for DOS mode attributes 2021-03-16 15:00:14 -07:00
linux.run ZED: Match added disk by pool/vdev GUID if found (#12217) 2021-09-14 12:10:44 -07:00
longevity.run OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
perf-regression.run OpenZFS 9184 - Add ZFS performance test for fixed blocksize random read/write IO 2018-07-02 13:46:06 -07:00
sanity.run Fix various typos 2021-04-07 13:27:11 -07:00
sunos.run ZTS: Add a failsafe callback to run after each test 2020-03-10 11:00:56 -07:00