/* * Copyright (c) 2001-2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "xfs.h" #include #include #include "xfs_error.h" #include "xfs_stats.h" static struct ctl_table_header *xfs_table_header; #ifdef CONFIG_PROC_FS STATIC int xfs_stats_clear_proc_handler( struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int ret, *valp = ctl->data; ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); if (!ret && write && *valp) { xfs_stats_clearall(xfsstats.xs_stats); xfs_stats_clear = 0; } return ret; } STATIC int xfs_panic_mask_proc_handler( struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int ret, *valp = ctl->data; ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); if (!ret && write) { xfs_panic_mask = *valp; #ifdef DEBUG xfs_panic_mask |= (XFS_PTAG_SHUTDOWN_CORRUPT | XFS_PTAG_LOGRES); #endif } return ret; } #endif /* CONFIG_PROC_FS */ static struct ctl_table xfs_table[] = { { .procname = "irix_sgid_inherit", .data = &xfs_params.sgid_inherit.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.sgid_inherit.min, .extra2 = &xfs_params.sgid_inherit.max }, { .procname = "irix_symlink_mode", .data = &xfs_params.symlink_mode.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.symlink_mode.min, .extra2 = &xfs_params.symlink_mode.max }, { .procname = "panic_mask", .data = &xfs_params.panic_mask.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = xfs_panic_mask_proc_handler, .extra1 = &xfs_params.panic_mask.min, .extra2 = &xfs_params.panic_mask.max }, { .procname = "error_level", .data = &xfs_params.error_level.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.error_level.min, .extra2 = &xfs_params.error_level.max }, { .procname = "xfssyncd_centisecs", .data = &xfs_params.syncd_timer.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.syncd_timer.min, .extra2 = &xfs_params.syncd_timer.max }, { .procname = "inherit_sync", .data = &xfs_params.inherit_sync.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.inherit_sync.min, .extra2 = &xfs_params.inherit_sync.max }, { .procname = "inherit_nodump", .data = &xfs_params.inherit_nodump.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.inherit_nodump.min, .extra2 = &xfs_params.inherit_nodump.max }, { .procname = "inherit_noatime", .data = &xfs_params.inherit_noatim.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.inherit_noatim.min, .extra2 = &xfs_params.inherit_noatim.max }, { .procname = "inherit_nosymlinks", .data = &xfs_params.inherit_nosym.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.inherit_nosym.min, .extra2 = &xfs_params.inherit_nosym.max }, { .procname = "rotorstep", .data = &xfs_params.rotorstep.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.rotorstep.min, .extra2 = &xfs_params.rotorstep.max }, { .procname = "inherit_nodefrag", .data = &xfs_params.inherit_nodfrg.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.inherit_nodfrg.min, .extra2 = &xfs_params.inherit_nodfrg.max }, { .procname = "filestream_centisecs", .data = &xfs_params.fstrm_timer.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.fstrm_timer.min, .extra2 = &xfs_params.fstrm_timer.max, }, { .procname = "speculative_prealloc_lifetime", .data = &xfs_params.eofb_timer.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.eofb_timer.min, .extra2 = &xfs_params.eofb_timer.max, }, { .procname = "speculative_cow_prealloc_lifetime", .data = &xfs_params.cowb_timer.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xfs_params.cowb_timer.min, .extra2 = &xfs_params.cowb_timer.max, }, /* please keep this the last entry */ #ifdef CONFIG_PROC_FS { .procname = "stats_clear", .data = &xfs_params.stats_clear.val, .maxlen = sizeof(int), .mode = 0644, .proc_handler = xfs_stats_clear_proc_handler, .extra1 = &xfs_params.stats_clear.min, .extra2 = &xfs_params.stats_clear.max }, #endif /* CONFIG_PROC_FS */ {} }; static struct ctl_table xfs_dir_table[] = { { .procname = "xfs", .mode = 0555, .child = xfs_table }, {} }; static struct ctl_table xfs_root_table[] = { { .procname = "fs", .mode = 0555, .child = xfs_dir_table }, {} }; int xfs_sysctl_register(void) { xfs_table_header = register_sysctl_table(xfs_root_table); if (!xfs_table_header) return -ENOMEM; return 0; } void xfs_sysctl_unregister(void) { unregister_sysctl_table(xfs_table_header); } abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/tipc/bcast.h')