/* * Copyright (c) 2000-2001 Christoph Hellwig. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL"). * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #ifndef _VXFS_EXTERN_H_ #define _VXFS_EXTERN_H_ /* * Veritas filesystem driver - external prototypes. * * This file contains prototypes for all vxfs functions used * outside their respective source files. */ struct kmem_cache; struct super_block; struct vxfs_inode_info; struct inode; /* vxfs_bmap.c */ extern daddr_t vxfs_bmap1(struct inode *, long); /* vxfs_fshead.c */ extern int vxfs_read_fshead(struct super_block *); /* vxfs_inode.c */ extern const struct address_space_operations vxfs_immed_aops; extern void vxfs_dumpi(struct vxfs_inode_info *, ino_t); extern struct inode *vxfs_blkiget(struct super_block *, u_long, ino_t); extern struct inode *vxfs_stiget(struct super_block *, ino_t); extern struct inode *vxfs_iget(struct super_block *, ino_t); extern void vxfs_evict_inode(struct inode *); /* vxfs_lookup.c */ extern const struct inode_operations vxfs_dir_inode_ops; extern const struct file_operations vxfs_dir_operations; /* vxfs_olt.c */ extern int vxfs_read_olt(struct super_block *, u_long); /* vxfs_subr.c */ extern const struct address_space_operations vxfs_aops; extern struct page * vxfs_get_page(struct address_space *, u_long); extern void vxfs_put_page(struct page *); extern struct buffer_head * vxfs_bread(struct inode *, int); #endif /* _VXFS_EXTERN_H_ */ t class='txt' type='search' size='10' name='q' value=''/>
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /sound/soc/adi/axi-i2s.c
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'sound/soc/adi/axi-i2s.c')