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Brian Behlendorf a2f759146d Linux compat 4.18: check_disk_size_change() 
Added support for the bops->check_events() interface which was
added in the 2.6.38 kernel to replace bops->media_changed().
Fully implementing this functionality allows the volume resize
code to rely on revalidate_disk(), which is the preferred
mechanism, and removes the need to use check_disk_size_change().

In order for bops->check_events() to lookup the zvol_state_t
stored in the disk->private_data the zvol_state_lock needs to
be held.  Since the check events interface may poll the mutex
has been converted to a rwlock for better concurrently.  The
rwlock need only be taken as a writer in the zvol_free() path
when disk->private_data is set to NULL.

The configure checks for the block_device_operations structure
were consolidated in a single kernel-block-device-operations.m4
file.

The ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS configure checks
and assoicated dead code was removed.  This interface was added
to the 2.6.28 kernel which predates the oldest supported 2.6.32
kernel and will therefore always be available.

Updated maximum Linux version in META file.  The 4.17 kernel
was released on 2018-06-03 and ZoL is compatible with the
finalized kernel.

Reviewed-by: Boris Protopopov <boris.protopopov@actifio.com>
Reviewed-by: Sara Hartse <sara.hartse@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7611
2018-07-06 02:46:51 -07:00
..
.gitignore Add config/compile to config/.gitignore 2014-10-31 16:25:34 -07:00
always-arch.m4 Illumos Crypto Port module added to enable native encryption in zfs 2016-07-20 10:43:30 -07:00
always-no-bool-compare.m4 Disable gcc bool-compare warning 2015-07-13 12:55:26 -07:00
always-no-unused-but-set-variable.m4 config: compile test rather than run test 2014-03-20 12:11:57 -07:00
ax_code_coverage.m4 Fix "--enable-code-coverage" debug build 2018-03-14 16:10:36 -07:00
config.awk Add build system 2010-08-31 13:41:27 -07:00
deb.am Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-acl-refcount.m4 Linux 4.16 compat: use correct *_dec_and_test() 2018-03-14 16:10:37 -07:00
kernel-acl.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-aio-fsync.m4 Kernel 4.9 compat: file_operations->aio_fsync removal 2016-11-15 09:20:46 -08:00
kernel-automount.m4 Fix snapshot automounting with GrSecurity constify plugin. 2012-08-24 08:56:38 -07:00
kernel-bdev-logical-size.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-bdev-physical-size.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-bdi.m4 Fix autoconf detection of super_setup_bdi_name 2017-07-25 10:30:20 -07:00
kernel-bio_set_dev.m4 Linux 4.14 compat: IO acct, global_page_state, etc (#6655) 2017-09-19 14:24:34 -07:00
kernel-bio-bvec-iter.m4 Linux 3.14 compat: Immutable biovec changes in vdev_disk.c 2014-04-10 14:28:38 -07:00
kernel-bio-end-io-t-args.m4 Linux 4.13 compat: bio->bi_status and blk_status_t 2017-07-23 19:37:12 -07:00
kernel-bio-failfast.m4 Linux 2.6.36 compat, use REQ_FAILFAST_MASK and remove pre-2.6.36 support 2015-05-11 15:07:00 -07:00
kernel-bio-op.m4 Fix RHEL 7.4 bio_set_op_attrs build error 2017-06-27 12:00:27 -07:00
kernel-bio-rw-barrier.m4 zvol processing should use struct bio 2015-09-04 15:30:24 -04:00
kernel-bio-rw-discard.m4 zvol processing should use struct bio 2015-09-04 15:30:24 -04:00
kernel-blk-queue-bdi.m4 Enable Linux read-ahead for a single page on ZVOLs 2017-05-04 18:00:27 -04:00
kernel-blk-queue-flags.m4 Linux compat 4.16: blk_queue_flag_{set,clear} 2018-05-07 17:19:57 -07:00
kernel-blk-queue-flush.m4 Linux 4.7 compat: replace blk_queue_flush with blk_queue_write_cache 2016-05-20 11:08:55 -07:00
kernel-blk-queue-max-hw-sectors.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-blk-queue-max-segments.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-blk-queue-unplug.m4 Explicit block device plugging when submitting multiple BIOs 2016-09-29 13:13:31 -07:00
kernel-blkdev-get-by-path.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-blkdev-get.m4 Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
kernel-block-device-operations.m4 Linux compat 4.18: check_disk_size_change() 2018-07-06 02:46:51 -07:00
kernel-clear-inode.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-commit-metadata.m4 Implement .commit_metadata hook for NFS export 2012-10-03 10:49:45 -07:00
kernel-create-nameidata.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-current_bio_tail.m4 zvol processing should use struct bio 2015-09-04 15:30:24 -04:00
kernel-current-time.m4 Linux 4.18 compat: inode timespec -> timespec64 2018-07-06 02:46:51 -07:00
kernel-d-make-root.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-d-obtain-alias.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-d-prune-aliases.m4 Add zfs_sb_prune_aliases() function 2015-06-22 10:22:49 -07:00
kernel-declare-event-class.m4 Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
kernel-dentry-operations.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-dirty-inode.m4 Eliminate runtime function pointer mods in autotools checks 2013-03-04 08:49:17 -08:00
kernel-discard-granularity.m4 Set zvol discard_granularity to the volblocksize. 2012-08-07 14:55:31 -07:00
kernel-elevator-change.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-encode-fh-inode.m4 Linux 3.5 compat, eops->encode_fh() takes inodes 2012-07-23 12:29:23 -07:00
kernel-evict-inode.m4 Fix build failures on PaX/GRSecurity patched kernels 2012-07-17 09:22:43 -07:00
kernel-fallocate.m4 Eliminate runtime function pointer mods in autotools checks 2013-03-04 08:49:17 -08:00
kernel-file-dentry.m4 Use file_dentry and file_inode wrappers 2016-08-11 12:06:37 -07:00
kernel-file-inode.m4 Linux 3.19 compat: file_inode was added 2015-02-10 11:24:51 -08:00
kernel-fmode-t.m4 Fix gcc configure warnings 2011-04-19 10:10:47 -07:00
kernel-follow-down-one.m4 Linux 3.18 compat: Snapshot auto-mounting 2015-08-31 13:54:39 -07:00
kernel-fpu.m4 Support for vectorized algorithms on x86 2016-03-21 09:24:34 -07:00
kernel-fst-mount.m4 Allow mounting datasets more than once 2018-05-07 17:19:57 -07:00
kernel-fsync.m4 Eliminate runtime function pointer mods in autotools checks 2013-03-04 08:49:17 -08:00
kernel-generic_io_acct.m4 Linux 4.14 compat: IO acct, global_page_state, etc (#6655) 2017-09-19 14:24:34 -07:00
kernel-generic_readlink.m4 4.10 compat - BIO flag changes and others 2016-12-30 16:03:59 -06:00
kernel-get-disk-and-module.m4 Linux 4.16 compat: get_disk_and_module() 2018-03-14 16:10:38 -07:00
kernel-get-disk-ro.m4 Only use gcc -Wunused-but-set-variable when available 2013-01-10 16:09:39 -08:00
kernel-get-gendisk.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-get-link.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-global_page_state.m4 Fix free memory calculation on v3.14+ 2018-03-14 16:10:37 -07:00
kernel-inode-getattr.m4 Linux 4.11 compat: iops.getattr and friends 2017-03-20 17:51:16 -07:00
kernel-inode-set-flags.m4 Use inode_set_flags when available 2016-12-16 13:54:51 -08:00
kernel-inode-set-iversion.m4 Linux 4.16 compat: inode_set_iversion() 2018-03-14 16:10:36 -07:00
kernel-insert-inode-locked.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-invalidate-bdev-args.m4 Fix gcc configure warnings 2011-04-19 10:10:47 -07:00
kernel-is_owner_or_cap.m4 Refactor inode_owner_or_capable() autotools check 2014-05-01 10:06:49 -07:00
kernel-kmap-atomic-args.m4 Add compatibility layer for {kmap,kunmap}_atomic 2015-08-24 10:13:25 -07:00
kernel-kuid-helpers.m4 Check whether the kernel supports i_uid/gid_read/write helpers 2016-07-25 13:21:49 -07:00
kernel-lookup-bdev.m4 Fix lookup_bdev() on Ubuntu 2016-10-26 10:30:43 -07:00
kernel-lookup-nameidata.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
kernel-lseek-execute.m4 Add SEEK_DATA/SEEK_HOLE to lseek()/llseek() 2013-07-02 09:24:43 -07:00
kernel-mk-request-fn.m4 Linux 4.4 compat: make_request_fn returns blk_qc_t 2015-12-01 16:48:08 -08:00
kernel-mkdir-umode-t.m4 Fix spelling 2017-01-03 11:31:18 -06:00
kernel-mod-param.m4 Linux compat: Grsecurity kernel 2016-08-22 10:05:45 -07:00
kernel-objtool.m4 [icp] fpu and asm cleanup for linux 2017-03-07 12:59:31 -08:00
kernel-open-bdev-exclusive.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-put-link.m4 Linux 4.5 compat: get_link() / put_link() 2016-01-20 11:36:00 -08:00
kernel-rename.m4 Linux 4.9 compat: iops->rename() wants flags 2016-10-20 09:39:09 -07:00
kernel-security-inode-init.m4 Use -Werror for all kernel configure tests. 2013-02-24 10:20:28 -08:00
kernel-set-nlink.m4 Linux 3.2 compat: set_nlink() 2011-12-16 20:02:52 -08:00
kernel-setattr-prepare.m4 Linux 4.9 compat: inode_change_ok() renamed setattr_prepare() 2016-10-20 09:39:09 -07:00
kernel-sget-args.m4 Linux 3.6 compat, sget() 2012-10-14 13:06:48 -07:00
kernel-show-options.m4 Fix NULL pointer dereference on PaX/GRSecurity patched Linux 3.3 and later kernels 2012-07-20 12:31:45 -07:00
kernel-shrink.m4 3.12 compat, NUMA-aware per-superblock shrinker 2015-06-17 10:43:13 -07:00
kernel-submit_bio.m4 Linux 4.8 compat: submit_bio() 2016-07-29 14:48:00 -07:00
kernel-super-userns.m4 Linux 4.8 compat: new s_user_ns member of struct super_block 2016-08-08 10:47:22 -07:00
kernel-tmpfile.m4 Add support for O_TMPFILE 2016-11-04 10:46:40 -07:00
kernel-truncate-range.m4 Linux 3.5 compat, iops->truncate_range() removed 2012-07-23 12:29:32 -07:00
kernel-truncate-setsize.m4 When checking for symbol exports, try compiling. 2012-07-26 13:42:57 -07:00
kernel-userns-capabilities.m4 Take user namespaces into account in policy checks 2018-03-14 16:10:38 -07:00
kernel-vfs-iterate.m4 RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-07 17:19:57 -07:00
kernel-vfs-rw-iterate.m4 Fix incompatibility with Reiser4 patched kernels 2018-01-30 10:27:31 -06:00
kernel-xattr-handler.m4 Fix spelling 2017-01-03 11:31:18 -06:00
kernel.m4 Linux compat 4.18: check_disk_size_change() 2018-07-06 02:46:51 -07:00
mount-helper.m4 The mount helper mount.zfs MUST be in /sbin (not '$sbindir'). 2015-05-18 16:54:36 -07:00
rpm.am Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
Rules.am Add support for "--enable-code-coverage" option 2018-03-14 16:10:36 -07:00
suppressed-warnings.txt Suppress packaging warning 2011-11-08 11:32:04 -08:00
tgz.am Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
toolchain-simd.m4 Add support for AVX-512 family of instruction sets 2016-08-16 14:10:33 -07:00
user-dracut.m4 Accept udev and dracut paths specified by ./configure 2014-06-11 16:32:57 -07:00
user-frame-larger-than.m4 config: compile test rather than run test 2014-03-20 12:11:57 -07:00
user-libaio.m4 Fix mmap / libaio deadlock 2018-05-07 17:19:57 -07:00
user-libblkid.m4 Fix config issues: frame size and headers 2018-03-14 16:10:37 -07:00
user-libtirpc.m4 Add support for libtirpc 2016-04-28 09:27:40 -07:00
user-libudev.m4 Fix WANT_DEVNAME2DEVID configure error 2016-04-01 09:06:54 -07:00
user-libuuid.m4 Cleanup linking 2016-03-18 13:31:11 -07:00
user-makedev.m4 glibc 2.5 compat: use correct header for makedev() et al. 2017-03-31 09:32:00 -07:00
user-no-format-truncation.m4 GCC 7.1 fixes 2017-06-28 10:05:16 -07:00
user-runstatedir.m4 Add defs for makefile installation dir vars 2014-03-31 16:11:13 -07:00
user-systemd.m4 Fix --with-systemd on Debian-based distributions (#6963) 2018-03-14 16:10:36 -07:00
user-sysvinit.m4 Add systemd unit files for ZFS startup 2014-02-05 12:25:30 -08:00
user-udev.m4 Accept udev and dracut paths specified by ./configure 2014-06-11 16:32:57 -07:00
user-zlib.m4 Cleanup linking 2016-03-18 13:31:11 -07:00
user.m4 Fix mmap / libaio deadlock 2018-05-07 17:19:57 -07:00
zfs-build.m4 Remove DEBUG_STACKFLAGS to bypass compiler error 2018-05-07 17:19:58 -07:00
zfs-meta.m4 Fix automatically generated release number 2016-09-21 13:45:21 -07:00