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* Tunable directory for zfs runtime scriptsAntonio Russo2018-06-072-0/+10
| | | | | | | | | | | | | zpool and zed place scripts in subdirectories of libexecdir. Some distributions locate architecture independent scripts in other locations (e.g. Debian). To avoid these paths getting out of sync, centralize the definitions. Build zfs-test's default.cfg by Makefile. Use the new directory logic building tests/zfs-tests/include/default.cfg.in. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Antonio Russo <[email protected]> Closes #7597
* Update build system and packagingBrian Behlendorf2018-05-2924-422/+324
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minimal changes required to integrate the SPL sources in to the ZFS repository build infrastructure and packaging. Build system and packaging: * Renamed SPL_* autoconf m4 macros to ZFS_*. * Removed redundant SPL_* autoconf m4 macros. * Updated the RPM spec files to remove SPL package dependency. * The zfs package obsoletes the spl package, and the zfs-kmod package obsoletes the spl-kmod package. * The zfs-kmod-devel* packages were updated to add compatibility symlinks under /usr/src/spl-x.y.z until all dependent packages can be updated. They will be removed in a future release. * Updated copy-builtin script for in-kernel builds. * Updated DKMS package to include the spl.ko. * Updated stale AUTHORS file to include all contributors. * Updated stale COPYRIGHT and included the SPL as an exception. * Renamed README.markdown to README.md * Renamed OPENSOLARIS.LICENSE to LICENSE. * Renamed DISCLAIMER to NOTICE. Required code changes: * Removed redundant HAVE_SPL macro. * Removed _BOOT from nvpairs since it doesn't apply for Linux. * Initial header cleanup (removal of empty headers, refactoring). * Remove SPL repository clone/build from zimport.sh. * Use of DEFINE_RATELIMIT_STATE and DEFINE_SPINLOCK removed due to build issues when forcing C99 compilation. * Replaced legacy ACCESS_ONCE with READ_ONCE. * Include needed headers for `current` and `EXPORT_SYMBOL`. Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Olaf Faaland <[email protected]> Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: Pavel Zakharov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> TEST_ZIMPORT_SKIP="yes" Closes #7556
* Merge branch 'zfsonlinux/merge-spl'Brian Behlendorf2018-05-2921-0/+922
|\ | | | | | | | | | | | | | | | | | | Merge a minimal version of the zfsonlinux/spl repository in to the zfsonlinux/zfs repository. Care was taken to prevent file conflicts when merging and to preserve the spl repository history. The spl kernel module remains under the GPLv2 license as documented by the additional THIRDPARTYLICENSE.gplv2 file. Signed-off-by: Brian Behlendorf <[email protected]>
| * Prepare SPL repo to merge with ZFS repoBrian Behlendorf2018-05-2912-1239/+77
| | | | | | | | | | | | | | | | | | This commit removes everything from the repository except the core SPL implementation for Linux. Those files which remain have been moved to non-conflicting locations to facilitate the merge. The README.md and associated files have been updated accordingly. Signed-off-by: Brian Behlendorf <[email protected]>
| * Fix undefined RPM macrosBrian Behlendorf2018-05-021-4/+3
| | | | | | | | | | | | | | | | | | | | Always invoke the SPL_AC_DEBUG* macro's when running configure so RPM_DEFINE_COMMON is correctly expanded. A similar change was already applied to ZFS. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #703
| * Fix spl-kmod builds when using rpm >= 4.14LOLi2018-03-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | With rpm-software-management/rpm@5e94633 a package version containing invalid characters (most commonly a double '-') causes the kmod package generation to terminate with an error. This change takes advantage of the newly introduced rpm macro "_wrong_version_format_terminate_build" to allow kmod packages to be built. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #691
| * Split spl-build.m4Brian Behlendorf2018-02-0722-956/+932
| | | | | | | | | | | | | | | | | | Split the kernel interface configure checks in to seperate m4 macro files. This is intended to facilitate moving the spl source code in to the zfs repository. Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #682
| * Add cv_timedwait_io()Brian Behlendorf2018-01-241-0/+21
| | | | | | | | | | | | | | | | Add missing helper function cv_timedwait_io(), it should be used when waiting on IO with a specified timeout. Reviewed-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #674
| * Fix Debian packaging on ARMv7/ARM64LOLi2018-01-181-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building packages on Debian-based systems specify the target architecture used by 'alien' to convert .rpm packages into .deb: this avoids detecting an incorrect value which results in the following errors: <package>.aarch64.rpm is for architecture aarch64 ; the package cannot be built on this system <package>.armv7l.rpm is for architecture armel ; the package cannot be built on this system Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: loli10K <[email protected]> Closes zfsonlinux/zfs#7046 Closes #678
| * Linux 4.15 compat: timer updatesTony Hutter2017-12-211-0/+34
| | | | | | | | | | | | | | | | Use timer_setup() macro and new timeout function definition. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #670 Closes #671
| * Linux 4.14 compat: vfs_read & vfs_writeBrian Behlendorf2017-11-151-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel_read & kernel_write functions have always wrapped the vfs_read & vfs_write functions respectively. However, they could not be used by vn_rdwr() since the offset wasn't passed as a pointer. This prevented us from being able to properly update the file offset. Linux 4.14 unexported vfs_read & vfs_write but also changed the signature of kernel_read & kernel_write to provide the needed functionality. Use these updated functions when available. Reviewed-by: Pritam Baral <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #656 Closes #667
| * Remove vn_rename and vn_removeBrian Behlendorf2017-10-271-101/+0
| | | | | | | | | | | | | | | | | | | | Both vn_rename and vn_remove have been historically problematic to implement reliably. Rather than fixing them yet again they are being removed. Reviewed-by: Arkadiusz Bubala <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #648 Closes #661
| * Add DKMS package on Debian-based distributionsNeal Gompa (ニール・ゴンパ)2017-10-151-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | * config/deb.am: Enable building DKMS packages for Debian * rpm/generic/spl-dkms.spec.in: Adjust spec to be Debian-compatible * Condition kernel-devel Requires to RPM distros * Ensure that --rpm_safe_upgrade isn't used on non-RPM distros * config/deb.am: Drop CONFIG_KERNEL and CONFIG_USER guards * Makefile.am: Add pkg-dkms target Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Neal Gompa <[email protected]> Closes #657
| * Remove misguided HAVE_MUTEX_OWNER check, take 2Oleg Drokin2017-08-021-30/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is just plain unsafe to peek inside in-kernel mutex structure and make assumptions about what kernel does with those internal fields like owner. Kernel is all too happy to stop doing the expected things like tracing lock owner once you load a tainted module like spl/zfs that is not GPL. As such you will get instant assertion failures like this: VERIFY3(((*(volatile typeof((&((&zo->zo_lock)->m_mutex))->owner) *)& ((&((&zo->zo_lock)->m_mutex))->owner))) == ((void *)0)) failed (ffff88030be28500 == (null)) PANIC at zfs_onexit.c:104:zfs_onexit_destroy() Showing stack for process 3626 CPU: 0 PID: 3626 Comm: mkfs.lustre Tainted: P OE ------------ 3.10.0-debug #1 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 Call Trace: dump_stack+0x19/0x1b spl_dumpstack+0x44/0x50 [spl] spl_panic+0xbf/0xf0 [spl] zfs_onexit_destroy+0x17c/0x280 [zfs] zfsdev_release+0x48/0xd0 [zfs] Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Chunwei Chen <[email protected]> Reviewed-by: Gvozden Neskovic <[email protected]> Signed-off-by: Oleg Drokin <[email protected]> Closes #639 Closes #632
| * Revert "Remove misguided HAVE_MUTEX_OWNER check"Brian Behlendorf2017-08-021-0/+30
| | | | | | | | | | | | | | | | | | This reverts commit d89616fda88bc030aaff758d37ede7d35e58841a which introduced some build failures which need to be resolved before this can be merged. Signed-off-by: Brian Behlendorf <[email protected]> Issue #633
| * Remove misguided HAVE_MUTEX_OWNER checkOleg Drokin2017-08-021-30/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is just plain unsafe to peek inside in-kernel mutex structure and make assumptions about what kernel does with those internal fields like owner. Kernel is all too happy to stop doing the expected things like tracing lock owner once you load a tainted module like spl/zfs that is not GPL. As such you will get instant assertion failures like this: VERIFY3(((*(volatile typeof((&((&zo->zo_lock)->m_mutex))->owner) *)& ((&((&zo->zo_lock)->m_mutex))->owner))) == ((void *)0)) failed (ffff88030be28500 == (null)) PANIC at zfs_onexit.c:104:zfs_onexit_destroy() Showing stack for process 3626 CPU: 0 PID: 3626 Comm: mkfs.lustre Tainted: P OE ------------ 3.10.0-debug #1 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 Call Trace: dump_stack+0x19/0x1b spl_dumpstack+0x44/0x50 [spl] spl_panic+0xbf/0xf0 [spl] zfs_onexit_destroy+0x17c/0x280 [zfs] zfsdev_release+0x48/0xd0 [zfs] Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Chunwei Chen <[email protected]> Signed-off-by: Oleg Drokin <[email protected]> Closes #632 Closes #633
| * Linux 4.13 compat: wait queuesBrian Behlendorf2017-07-231-0/+55
| | | | | | | | | | | | | | | | | | | | | | | | Commit torvalds/linux@ac6424b9 - Renamed struct wait_queue -> struct wait_queue_entry. Commit torvalds/linux@2055da97 - Renamed wait_queue_head::task_list -> wait_queue_head::head - Renamed wait_queue_entry::task_list -> wait_queue_entry::entry Reviewed-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #629
| * Fix RWSEM_SPINLOCK_IS_RAW check failedChunwei Chen2017-06-281-1/+2
| | | | | | | | | | | | | | | | | | | | Initialize dummy_lock to fix the build error in gcc 7.1.1 with: error: ‘dummy_lock’ is used uninitialized in this function Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #622
| * config: allow --with-linux without --with-linux-objChunwei Chen2017-05-251-1/+2
| | | | | | | | | | | | | | | | | | Don't use `uname -r` to determine kernel build directory when the user specified kernel source with --with-linux. Otherwise, the user is forced to use --with-linux-obj even if they are the same directory, which is very counterintuitive. Signed-off-by: Chunwei Chen <[email protected]>
| * Linux 4.11 compat: remove stub for __put_task_structOlaf Faaland2017-03-201-20/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before kernel 2.6.29 credentials were embedded in task_structs, and zfs had cases where one thread would need to refer to the credential of another thread, forcing it to take a hold on the foreign thread's task_struct to ensure it was not freed. Since 2.6.29, the credential has been moved out of the task_struct into a cred_t. In addition, the mainline kernel originally did not export __put_task_struct() but the RHEL5 kernel did, according to zfsonlinux/spl@e811949a570. As of 2.6.39 the mainline kernel exports it. There is no longer zfs code that takes or releases holds on a task_struct, and so there is no longer any reference to __put_task_struct(). This affects the linux 4.11 kernel because the prototype for __put_task_struct() is in a new include file (linux/sched/task.h) and so the config check failed to detect the exported symbol. Removing the unnecessary stub and corresponding config check. This works on kernels since the oldest one currently supported, 2.6.32 as shipped with Centos/RHEL. Reviewed-by: Chunwei Chen <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #608
| * Linux 4.11 compat: add linux/sched/signal.hOlaf Faaland2017-03-201-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | In Linux 4.11, torvalds/linux@2a1f062, signal handling related functions were moved from sched.h into sched/signal.h. Add configure checks to detect this and include the new file where needed. Reviewed-by: Chunwei Chen <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #608
| * Linux 4.11 compat: vfs_getattr() takes 4 argsOlaf Faaland2017-03-201-17/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are changes to vfs_getattr() in torvalds/linux@a528d35. The new interface is: int vfs_getattr(const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags) The request_mask argument indicates which field(s) the caller intends to use. Fields the caller does not specify via request_mask may be set in the returned struct anyway, but their values may be approximate. The query_flags argument indicates whether the filesystem must update the attributes from the backing store. This patch uses the query_flags which result in vfs_getattr behaving the same as it did with the 2-argument version which the kernel provided before Linux 4.11. Members blksize and blocks are now always the same size regardless of arch. They match the size of the equivalent members in vnode_t. The configure checks are modified to ensure that the appropriate vfs_getattr() interface is used. A more complete fix, removing the ZFS dependency on vfs_getattr() entirely, is deferred as it is a much larger project. Reviewed-by: Chunwei Chen <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #608
| * Add support for recent kmem_cache_create_usercopyKevin Tanguy2017-01-171-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SLAB_USERCOPY flag was used to indicate PAX not to kill copies from kernel to userland. With recent grsecurity patchset and CONFIG_GRKERNSEC_HIDESYM that enables CONFIG_PAX_USERCOPY zfs would panic. Handle newer API while keeping old one functional. Tested-by: RageLtMan <rageltman@sempervictus> Reviewed-by: spendergrsec <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Kevin Tanguy <[email protected]> Closes #595
| * Linux 4.9 compat: group_info changesChunwei Chen2016-10-201-0/+23
| | | | | | | | | | | | | | | | | | In Linux 4.9, torvalds/linux@81243ea, group_info changed from 2d array via ->blocks to 1d array via ->gid. We change the spl cred functions accordingly. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #581
| * Fix automatically generated release numberBrian Behlendorf2016-09-211-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building from the head of a branch a release number is automatically generated with `git describe` using the last tag on that branch as the base. For this to work the last tag on the branch needs to be predictable given the current META file. This logic was accidentally broken when an -rcX tag was added to the branch. Update it to search for a VERSION or VERSION-RELEASE tag. Reviewed-by: Chris Siebenmann <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue zfsonlinux/zfs#5105 Closes #572
| * Fix HAVE_MUTEX_OWNER test for kernels prior to 4.6Tim Chase2016-08-011-0/+1
| | | | | | | | | | | | | | | | | | | | Recent 4.X kernels prior to 4.6 require #include of spinlock.h in order to get the definition of __ARCH_SPIN_LOCK_UNLOCKED which is used by DEFINE_MUTEX(). Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #566
| * Add handling for kernel 4.7's CONFIG_TRIM_UNUSED_KSYMSNikolay Borisov2016-08-011-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel 4.7 added the option to trim the unused exported symbols. In my testing this showed to be problematic since the PDE_DATA function was considered unused and as such was trimmed. This in turn caused the respective test during spl's configure stage to falsely detect that PDE_DATA is not defined, which in turn caused build failures later. Handle this situation by adding detection whether CONFIG_TRIM_UNUSED_KSYMS is enabled and refuse to build against a kernel which has it enabled Signed-off-by: Nikolay Borisov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #565
| * Linux 4.8 compat: rw_semaphore atomic_long_t countBrian Behlendorf2016-07-291-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For non-rwsem-spinlocks the "count" member was changed from a "long" to "atomic_long_t" type. A configure check has been added to detect this change along with new versions of the _rwsem_tryupgrade() function and RWSEM_COUNT() macro. See https://github.com/torvalds/linux/commit/8ee62b18 for complete details. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #563
| * Implement a proper rw_tryupgradeChunwei Chen2016-05-311-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current rw_tryupgrade does rw_exit and then rw_tryenter(RW_RWITER), and then does rw_enter(RW_READER) if it fails. This violate the assumption that rw_tryupgrade should be atomic and could cause extra contention or even lock inversion. This patch we implement a proper rw_tryupgrade. For rwsem-spinlock, we take the spinlock to check rwsem->count and rwsem->wait_list. For normal rwsem, we use cmpxchg on rwsem->count to change the value from single reader to single writer. Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <[email protected]> Closes zfsonlinux/zfs#4692 Closes #554
| * Linux 4.7 compat: inode_lock() and friendsChunwei Chen2016-05-201-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 4.7 changes i_mutex to i_rwsem, and we should used inode_lock and inode_lock_shared to do exclusive and shared lock respectively. We use spl_inode_lock{,_shared}() to hide the difference. Note that on older kernel you'll always take an exclusive lock. We also add all other inode_lock friends. And nested users now should explicitly call spl_inode_lock_nested with correct subclass. Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue zfsonlinux/zfs#4665 Closes #549
| * Use kernel provided mutex ownerChunwei Chen2016-04-251-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | To reduce mutex footprint, we detect the existence of owner in kernel mutex, and rely on it if it exists. Note that before Linux 3.0, mutex owner is of type thread_info. Also note that, in Linux 3.18, the condition for owner is changed from CONFIG_DEBUG_MUTEXES || CONFIG_SMP to CONFIG_DEBUG_MUTEXES || CONFIG_MUTEX_SPIN_ON_OWNER Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #540
| * Skip GPL-only symbols test when cross-compilingKamil Domanski2015-12-141-8/+11
| | | | | | | | | | | | | | Signed-off-by: Kamil Domański <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes zfsonlinux/spl#507 Closes zfsonlinux/zfs#4075
| * Revert "Skip GPL-only symbols test when cross-compiling"Brian Behlendorf2015-12-111-1/+0
| | | | | | | | | | | | | | | | | | This reverts commit 61bbbd9a775a5517af513e5014edbdd73a32f7e4 because older versions of autoconf (2.63) do not support the cross-compile argument to AC_RUN_IFELSE. Signed-off-by: Brian Behlendorf <[email protected]> Issue #507
| * Skip GPL-only symbols test when cross-compilingKamil Domański2015-12-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This test depends on being able to execute the resulting binary which will be impossible when cross-compiling. Instead make a worst case assumption which allows the build to continue as recommended by the autoconf manual. https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Runtime.html Signed-off-by: Kamil Domański <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: tuxoko <[email protected]> Closes zfsonlinux/spl#507 Closes zfsonlinux/zfs#4075
| * Default to --disable-debug-kmemBrian Behlendorf2015-07-211-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default kmem debugging (--enable-debug-kmem) can severely impact performance on large-scale NUMA systems due to the atomic operations used in the memory accounting. A 32-thread fio test running on a 40-core 80-thread system and performing 100% cached reads with kmem debugging is: Enabled: READ: io=177071MB, aggrb=2951.2MB/s, minb=2951.2MB/s, maxb=2951.2MB/s, Disabled: READ: io=271454MB, aggrb=4524.4MB/s, minb=4524.4MB/s, maxb=4524.4MB/s, Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <[email protected]> Issues #463
| * Support parallel build trees (VPATH builds)Turbo Fredriksson2015-07-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Build products from an out of tree build should be written relative to the build directory. Sources should be referred to by their locations in the source directory. This is accomplished by adding the 'src' and 'obj' variables for the module Makefile.am, using relative paths to reference source files, and by setting VPATH when source files are not co-located with the Makefile. This enables the following: $ mkdir build $ cd build $ ../configure $ make -s This change also has the advantage of resolving the following warning which is generated by modern versions of automake. Makefile.am:00: warning: source file 'xxx' is in a subdirectory, Makefile.am:00: but option 'subdir-objects' is disabled Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue zfsonlinux/zfs#1082
| * Retire rwsem_is_locked() compatBrian Behlendorf2015-06-101-22/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stock Linux 2.6.32 and earlier kernels contained a broken version of rwsem_is_locked() which could return an incorrect value. Because of this compatibility code was added to detect the broken implementation and replace it with our own if needed. The fix for this issue was merged in to the mainline Linux kernel as of 2.6.33 and the major enterprise distributions based on 2.6.32 have all backported the fix. Therefore there is no longer a need to carry this code and it can be removed. Signed-off-by: Brian Behlendorf <[email protected]> Closes #454
| * Add RHEL style kmod packagesBrian Behlendorf2015-03-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide a Redhat specific spl-kmod.spec file which uses the old style kmods (not kmods2) packaging. By using the provided kmodtool script packages can be built which support weak modules. This allows for the kernel to be updated without having to rebuild the SPL kernel modules. Packages for RHEL/Centos/SL/TOSS which use this spec file can by built as follows: $ ./configure --with-spec=redhat $ make rpms Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove rpm/fedora directoryBrian Behlendorf2015-03-271-1/+1
| | | | | | | | | | | | | | | | | | Originally it was thought that custom spec files might be required for Fedora. Happily that has turns out not to be the case. Since this directory just contains symlinks to the generic spec files it can be removed. Signed-off-by: Brian Behlendorf <[email protected]>
| * Set HAVE_FS_STRUCT_SPINLOCK correctly when CONFIG_FRAME_WARN==1024Tim Chase2015-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | If kernel lock debugging is enabled, the fs_struct structure exceeds the typical 1024 byte limit of CONFIG_FRAME_WARN and isn't enabled when it otherwise should be. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <[email protected]> Closes #440
| * Retire MUTEX_OWNER checksBrian Behlendorf2015-03-031-50/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To minimize the size of a kmutex_t a MUTEX_OWNER check was added. It allowed the kmutex_t wrapper to leverage the mutex owner which was already stored in the mutex for certain kernel configurations. The upside to this was that it reduced the size of the kmutex_t wrapper structure by the size of a task_struct pointer (4/8 bytes). The downside was that two mutex implementations needed to be maintained. Depending on your exact kernel configuration the correct one would be selected. Over the years this solution worked but it could be fragile since it depending heavily on assumed kernel mutex implementation details. For example the SPL_AC_MUTEX_OWNER_TASK_STRUCT configure check needed to be added when the kernel changed how the owner was stored. It also made the code more complicated than it needed to be. Therefore, in the name of simplicity and portability this optimization is being retired. It will slightly increase the memory requirements for a kmutex_t but only very slightly. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <[email protected]> Issue #435
| * Retire legacy debugging infrastructureBrian Behlendorf2014-11-191-35/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the SPL was originally written Linux tracepoints were still in their infancy. Therefore, an entire debugging subsystem was added to facilite tracing which served us well for many years. Now that Linux tracepoints have matured they provide all the functionality of the previous tracing subsystem. Rather than maintain parallel functionality it makes sense to fully adopt tracepoints. Therefore, this patch retires the legacy debugging infrastructure. See zfsonlinux/zfs@bc9f413 for the tracepoint changes. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #408
| * Add config/compile to config/.gitignoreMarcel Wysocki2014-10-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | This file may be added by automake and therefore should be added to config/.gitignore. For the full list of possible auxiliary programs see the full automake documentation. http://www.gnu.org/software/automake/manual/automake.html#Auxiliary-Programs Signed-off-by: Marcel Wysocki <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove vfs_fsync() wrapperBrian Behlendorf2014-10-171-19/+0
| | | | | | | | | | | | | | | | | | The vfs_fsync() function has been available since Linux 2.6.29. There is no longer a need to maintain this compatibility code. However, the HAVE_2ARGS_VFS_FSYNC check was left in place since that change occured after 2.6.32. Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove kern_path() wrapperBrian Behlendorf2014-10-171-39/+0
| | | | | | | | | | | | | | The kern_path() function has been available since Linux 2.6.28. There is no longer a need to maintain this compatibility code. Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove kvasprintf() wrapperBrian Behlendorf2014-10-171-19/+0
| | | | | | | | | | | | | | The kvasprintf() function has been available since Linux 2.6.22. There is no longer a need to maintain this compatibility code. Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove proc_handler() wrapperBrian Behlendorf2014-10-171-20/+0
| | | | | | | | | | | | | | | | As of Linux 2.6.32 the proc handlers where updated to expect only five arguments. Therefore there is no longer a need to maintain this compatibility code and this infrastructure can be simplified. Signed-off-by: Brian Behlendorf <[email protected]>
| * Update put_task_struct() commentsBrian Behlendorf2014-10-171-2/+2
| | | | | | | | | | | | | | Update the comments to correctly reflect when this interface was added. Signed-off-by: Brian Behlendorf <[email protected]>
| * Remove credential configure checks.Brian Behlendorf2014-10-171-46/+0
| | | | | | | | | | | | | | | | | | | | | | The groups_search() function was never exported by a mainline kernel therefore we drop this compatibility code and always provide our own implementation. Additionally, the cred_t structure has been available since 2.6.29 so there is no longer a need to maintain compatibility code. Signed-off-by: Brian Behlendorf <[email protected]>
| * Add vfs_unlink() and vfs_rename() commentsBrian Behlendorf2014-10-171-0/+8
| | | | | | | | | | | | | | Just for consistency with the other autoconf checks a small comment block was added before these checks. Signed-off-by: Brian Behlendorf <[email protected]>
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