2a5d574eca
When layered on XFS the following warning will be emitted under CentOS7 when entering vfs_fsync() with PF_FSTRANS already set. This is not an issue for other stock Linux file systems and the warning was removed for newer kernels. However, to avoid triggering this error PF_FSTRANS is cleared and then reset in vn_fsync(). WARNING: at fs/xfs/xfs_aops.c:968 xfs_vm_writepage+0x5ab/0x5c0 Call Trace: [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80 [<ffffffffa01706fb>] xfs_vm_writepage+0x5ab/0x5c0 [xfs] [<ffffffff8114b833>] __writepage+0x13/0x50 [<ffffffff8114c341>] write_cache_pages+0x251/0x4d0 [<ffffffff8114c60d>] generic_writepages+0x4d/0x80 [<ffffffffa016fc93>] xfs_vm_writepages+0x43/0x50 [xfs] [<ffffffff8114d68e>] do_writepages+0x1e/0x40 [<ffffffff81142bd5>] __filemap_fdatawrite_range+0x65/0x80 [<ffffffff81142cea>] filemap_write_and_wait_range+0x2a/0x70 [<ffffffffa017a5b6>] xfs_file_fsync+0x66/0x1f0 [xfs] [<ffffffff811df54b>] vfs_fsync+0x2b/0x40 [<ffffffffa03a88bd>] vn_fsync+0x2d/0x90 [spl] [<ffffffffa0520c33>] spa_config_sync+0x503/0x680 [zfs] [<ffffffffa0520ee4>] spa_config_update+0x134/0x170 [zfs] [<ffffffffa0520eba>] spa_config_update+0x10a/0x170 [zfs] [<ffffffffa051c54f>] spa_import+0x5bf/0x7b0 [zfs] [<ffffffffa055c754>] zfs_ioc_pool_import+0x104/0x150 [zfs] [<ffffffffa056294f>] zfsdev_ioctl+0x4cf/0x5c0 [zfs] [<ffffffffa0562480>] ? pool_status_check+0xf0/0xf0 [zfs] [<ffffffff811c2c85>] do_vfs_ioctl+0x2e5/0x4c0 [<ffffffff811c2f01>] SyS_ioctl+0xa1/0xc0 [<ffffffff815f3219>] system_call_fastpath+0x16/0x1b Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> |
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| COPYING | ||
| DISCLAIMER | ||
| META | ||
| Makefile.am | ||
| README.markdown | ||
| autogen.sh | ||
| configure.ac | ||
| copy-builtin | ||
| spl.release.in | ||
README.markdown
The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and do not want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.
To build packages for your distribution:
$ ./configure
$ make pkg
If you are building directly from the git tree and not an officially released tarball you will need to generate the configure script. This can be done by executing the autogen.sh script after installing the GNU autotools for your distribution.
To copy the kernel code inside your kernel source tree for builtin compilation:
$ ./configure --enable-linux-builtin --with-linux=/usr/src/linux-...
$ ./copy-builtin /usr/src/linux-...
The SPL comes with an automated test suite called SPLAT. The test suite is implemented in two parts. There is a kernel module which contains the tests and a user space utility which controls which tests are run. To run the full test suite:
$ sudo insmod ./module/splat/splat.ko
$ sudo ./cmd/splat --all
Full documentation for building, configuring, testing, and using the SPL can be found at: http://zfsonlinux.org