config OCFS2_FS tristate "OCFS2 file system support" depends on NET && SYSFS && CONFIGFS_FS select JBD2 select CRC32 select QUOTA select QUOTA_TREE select FS_POSIX_ACL help OCFS2 is a general purpose extent based shared disk cluster file system with many similarities to ext3. It supports 64 bit inode numbers, and has automatically extending metadata groups which may also make it attractive for non-clustered use. You'll want to install the ocfs2-tools package in order to at least get "mount.ocfs2". Project web page: http://oss.oracle.com/projects/ocfs2 Tools web page: http://oss.oracle.com/projects/ocfs2-tools OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ For more information on OCFS2, see the file . config OCFS2_FS_O2CB tristate "O2CB Kernelspace Clustering" depends on OCFS2_FS default y help OCFS2 includes a simple kernelspace clustering package, the OCFS2 Cluster Base. It only requires a very small userspace component to configure it. This comes with the standard ocfs2-tools package. O2CB is limited to maintaining a cluster for OCFS2 file systems. It cannot manage any other cluster applications. It is always safe to say Y here, as the clustering method is run-time selectable. config OCFS2_FS_USERSPACE_CLUSTER tristate "OCFS2 Userspace Clustering" depends on OCFS2_FS && DLM default y help This option will allow OCFS2 to use userspace clustering services in conjunction with the DLM in fs/dlm. If you are using a userspace cluster manager, say Y here. It is safe to say Y, as the clustering method is run-time selectable. config OCFS2_FS_STATS bool "OCFS2 statistics" depends on OCFS2_FS && DEBUG_FS default y help This option allows some fs statistics to be captured. Enabling this option may increase the memory consumption. config OCFS2_DEBUG_MASKLOG bool "OCFS2 logging support" depends on OCFS2_FS default y help The ocfs2 filesystem has an extensive logging system. The system allows selection of events to log via files in /sys/o2cb/logmask/. This option will enlarge your kernel, but it allows debugging of ocfs2 filesystem issues. config OCFS2_DEBUG_FS bool "OCFS2 expensive checks" depends on OCFS2_FS default n help This option will enable expensive consistency checks. Enable this option for debugging only as it is likely to decrease performance of the filesystem. >committer
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /sound/soc/codecs/mc13783.h
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: 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 'sound/soc/codecs/mc13783.h')