src/include/linux, branch zfs-0.7.0-rc2

Fix lookup_bdev() on Ubuntu

2016-10-26T17:30:43Z

Ubuntu added support for checking inode permissions to lookup_bdev() in kernel commit 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged in 4.4.0-6.21). Upstream bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517 This patch adds a test for Ubuntu's variant of lookup_bdev() to configure and calls the function in the correct way. Reviewed-by: Brian Behlendorf Signed-off-by: Hajo Möller Closes #5336

Linux 4.9 compat: inode_change_ok() renamed setattr_prepare()

2016-10-20T16:39:09Z

In torvalds/linux@31051c8 the inode_change_ok() function was renamed setattr_prepare() and updated to take a dentry ratheri than an inode. Update the code to call the setattr_prepare() and add a wrapper function which call inode_change_ok() for older kernels. Signed-off-by: Brian Behlendorf Signed-off-by: Chunwei Chen Requires-spl: refs/pull/581/head

Add parity generation/rebuild using 128-bits NEON for Aarch64

2016-10-03T16:44:00Z

This re-use the framework established for SSE2, SSSE3 and AVX2. However, GCC is using FP registers on Aarch64, so unlike SSE/AVX2 we can't rely on the registers being left alone between ASM statements. So instead, the NEON code uses C variables and GCC extended ASM syntax. Note that since the kernel explicitly disable vector registers, they have to be locally re-enabled explicitly. As we use the variable's number to define the symbolic name, and GCC won't allow duplicate symbolic names, numbers have to be unique. Even when the code is not going to be used (e.g. the case for 4 registers when using the macro with only 2). Only the actually used variables should be declared, otherwise the build will fails in debug mode. This requires the replacement of the XOR(X,X) syntax by a new ZERO(X) macro, which does the same thing but without repeating the argument. And perhaps someday there will be a machine where there is a more efficient way to zero a register than XOR with itself. This affects scalar, SSE2, SSSE3 and AVX2 as they need the new macro. It's possible to write faster implementations (different scheduling, different unrolling, interleaving NEON and scalar, ...) for various cores, but this one has the advantage of fitting in the current state of the code, and thus is likely easier to review/check/merge. The only difference between aarch64-neon and aarch64-neonx2 is that aarch64-neonx2 unroll some functions some more. Reviewed-by: Gvozden Neskovic Reviewed-by: Brian Behlendorf Signed-off-by: Romain Dolbeau Closes #4801

Linux compat: Grsecurity kernel

2016-08-22T17:05:45Z

API Change: Module parameter set/get methods take const parameter in Grsecurity kernel v4.7.1 Signed-off-by: Gvozden Neskovic Signed-off-by: Jason Zaman Signed-off-by: Brian Behlendorf Closes #4997 Closes #5001

Add support for AVX-512 family of instruction sets

2016-08-16T21:10:33Z

This patch adds compiler and runtime tests (user and kernel) for following instruction sets: avx512f, avx512cd, avx512er, avx512pf, avx512bw, avx512dq, avx512vl, avx512ifma, avx512vbmi. note: Linux support for AVX-512F (Foundation) instruction set started with linux v3.15 Signed-off-by: Gvozden Neskovic Signed-off-by: Brian Behlendorf Issue #4952

Reorder HAVE_BIO_RW_* checks

2016-08-12T16:17:40Z

The HAVE_BIO_RW_* #ifdef's must appear before REQ_* #ifdef's in the bio_is_flush() and bio_is_discard() macros. Linux 2.6.32 era kernels defined both of values and the HAVE_BIO_RW_* must be used in this case. This resulted in a panic in zconfig test 5. Signed-off-by: Brian Behlendorf Signed-off-by: Chunwei Chen Closes #4951 Closes #4959

Use file_dentry and file_inode wrappers

2016-08-11T19:06:37Z

Fix bugs due to kernel change in torvalds/linux@4bacc9c9234c ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay"). This problem crashes system when use zfs as a layer of overlayfs. Signed-off-by: Chen Haiquan Signed-off-by: Brian Behlendorf Closes #4914 Closes #4935

Linux 4.8 compat: Fix removal of bio->bi_rw member

2016-08-11T18:19:34Z

All users of bio->bi_rw have been replaced with compatibility wrappers. This allows the kernel specific logic to be abstracted away, and for each of the supported cases to be documented with the wrapper. The updated interfaces are as follows: * void blk_queue_set_write_cache(struct request_queue *, bool, bool) * boolean_t bio_is_flush(struct bio *) * boolean_t bio_is_fua(struct bio *) * boolean_t bio_is_discard(struct bio *) * boolean_t bio_is_secure_erase(struct bio *) * VDEV_WRITE_FLUSH_FUA Signed-off-by: Brian Behlendorf Signed-off-by: Chunwei Chen Closes #4951

Linux 4.8 compat: posix_acl_valid()

2016-08-08T18:46:40Z

The posix_acl_valid() function has been updated to require a user namespace. Filesystem callers should normally provide the user_ns from the super block associcated with the ACL; the zpl_posix_acl_valid() wrapper has been added for this purpose. See https://github.com/torvalds/linux/commit/0d4d717f for complete details. Signed-off-by: Brian Behlendorf Signed-off-by: Nikolay Borisov Signed-off-by: Chunwei Chen Closes #4922

Retire HAVE_CURRENT_UMASK and HAVE_POSIX_ACL_CACHING

2016-08-08T18:46:32Z

Remove ZFS_AC_KERNEL_CURRENT_UMASK and ZFS_AC_KERNEL_POSIX_ACL_CACHING configure checks, all supported kernel provide this functionality. Signed-off-by: Brian Behlendorf Signed-off-by: Nikolay Borisov Signed-off-by: Chunwei Chen Closes #4922