mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-04 04:37:39 -04:00
b8accfd65d
Add a new privileged ioctl so that xfs_scrub can ask the kernel to verify the media of the devices backing an xfs filesystem, and have any resulting media errors reported to fsnotify and xfs_healer. To accomplish this, the kernel allocates a folio between the base page size and 1MB, and issues read IOs to a gradually incrementing range of one of the storage devices underlying an xfs filesystem. If any error occurs, that raw error is reported to the calling process. If the error happens to be one of the ones that the kernel considers indicative of data loss, then it will also be reported to xfs_healthmon and fsnotify. Driving the verification from the kernel enables xfs (and by extension xfs_scrub) to have precise control over the size and error handling of IOs that are issued to the underlying block device, and to emit notifications about problems to other relevant kernel subsystems immediately. Note that the caller is also allowed to reduce the size of the IO and to ask for a relaxation period after each IO. Signed-off-by: "Darrick J. Wong" <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
257 lines
5.8 KiB
Makefile
257 lines
5.8 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (c) 2000-2005 Silicon Graphics, Inc.
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# All Rights Reserved.
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#
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ccflags-y += -I $(src) # needed for trace events
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ccflags-y += -I $(src)/libxfs
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obj-$(CONFIG_XFS_FS) += xfs.o
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# this one should be compiled first, as the tracing macros can easily blow up
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xfs-y += xfs_trace.o
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# build the libxfs code first
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xfs-y += $(addprefix libxfs/, \
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xfs_group.o \
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xfs_ag.o \
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xfs_ag_resv.o \
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xfs_alloc.o \
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xfs_alloc_btree.o \
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xfs_attr.o \
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xfs_attr_leaf.o \
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xfs_attr_remote.o \
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xfs_bit.o \
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xfs_bmap.o \
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xfs_bmap_btree.o \
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xfs_btree.o \
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xfs_btree_staging.o \
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xfs_da_btree.o \
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xfs_defer.o \
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xfs_dir2.o \
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xfs_dir2_block.o \
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xfs_dir2_data.o \
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xfs_dir2_leaf.o \
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xfs_dir2_node.o \
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xfs_dir2_sf.o \
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xfs_dquot_buf.o \
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xfs_exchmaps.o \
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xfs_ialloc.o \
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xfs_ialloc_btree.o \
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xfs_iext_tree.o \
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xfs_inode_fork.o \
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xfs_inode_buf.o \
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xfs_inode_util.o \
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xfs_log_rlimit.o \
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xfs_metadir.o \
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xfs_metafile.o \
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xfs_parent.o \
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xfs_rmap.o \
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xfs_rmap_btree.o \
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xfs_refcount.o \
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xfs_refcount_btree.o \
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xfs_rtrefcount_btree.o \
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xfs_rtrmap_btree.o \
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xfs_sb.o \
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xfs_symlink_remote.o \
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xfs_trans_inode.o \
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xfs_trans_resv.o \
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xfs_trans_space.o \
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xfs_types.o \
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)
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# xfs_rtbitmap is shared with libxfs
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xfs-$(CONFIG_XFS_RT) += $(addprefix libxfs/, \
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xfs_rtbitmap.o \
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xfs_rtgroup.o \
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xfs_zones.o \
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)
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# highlevel code
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xfs-y += xfs_aops.o \
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xfs_attr_inactive.o \
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xfs_attr_list.o \
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xfs_bmap_util.o \
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xfs_bio_io.o \
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xfs_buf.o \
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xfs_dahash_test.o \
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xfs_dir2_readdir.o \
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xfs_discard.o \
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xfs_error.o \
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xfs_exchrange.o \
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xfs_export.o \
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xfs_extent_busy.o \
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xfs_file.o \
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xfs_filestream.o \
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xfs_fsmap.o \
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xfs_fsops.o \
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xfs_globals.o \
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xfs_handle.o \
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xfs_health.o \
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xfs_healthmon.o \
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xfs_icache.o \
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xfs_ioctl.o \
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xfs_iomap.o \
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xfs_iops.o \
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xfs_inode.o \
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xfs_itable.o \
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xfs_iwalk.o \
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xfs_message.o \
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xfs_mount.o \
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xfs_mru_cache.o \
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xfs_pwork.o \
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xfs_reflink.o \
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xfs_stats.o \
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xfs_super.o \
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xfs_symlink.o \
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xfs_sysfs.o \
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xfs_trans.o \
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xfs_verify_media.o \
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xfs_xattr.o
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# low-level transaction/log code
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xfs-y += xfs_log.o \
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xfs_log_cil.o \
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xfs_bmap_item.o \
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xfs_buf_item.o \
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xfs_buf_item_recover.o \
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xfs_dquot_item_recover.o \
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xfs_exchmaps_item.o \
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xfs_extfree_item.o \
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xfs_attr_item.o \
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xfs_icreate_item.o \
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xfs_inode_item.o \
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xfs_inode_item_recover.o \
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xfs_iunlink_item.o \
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xfs_refcount_item.o \
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xfs_rmap_item.o \
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xfs_log_recover.o \
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xfs_trans_ail.o \
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xfs_trans_buf.o
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# optional features
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xfs-$(CONFIG_XFS_QUOTA) += xfs_dquot.o \
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xfs_dquot_item.o \
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xfs_trans_dquot.o \
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xfs_qm_syscalls.o \
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xfs_qm_bhv.o \
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xfs_qm.o \
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xfs_quotaops.o
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# xfs_rtbitmap is shared with libxfs
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xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o \
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xfs_zone_alloc.o \
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xfs_zone_gc.o \
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xfs_zone_info.o \
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xfs_zone_space_resv.o
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xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
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xfs-$(CONFIG_SYSCTL) += xfs_sysctl.o
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xfs-$(CONFIG_COMPAT) += xfs_ioctl32.o
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xfs-$(CONFIG_EXPORTFS_BLOCK_OPS) += xfs_pnfs.o
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# notify failure
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ifeq ($(CONFIG_MEMORY_FAILURE),y)
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xfs-$(CONFIG_FS_DAX) += xfs_notify_failure.o
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endif
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xfs-$(CONFIG_XFS_DRAIN_INTENTS) += xfs_drain.o
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xfs-$(CONFIG_XFS_LIVE_HOOKS) += xfs_hooks.o
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xfs-$(CONFIG_XFS_MEMORY_BUFS) += xfs_buf_mem.o
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xfs-$(CONFIG_XFS_BTREE_IN_MEM) += libxfs/xfs_btree_mem.o
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# online scrub/repair
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ifeq ($(CONFIG_XFS_ONLINE_SCRUB),y)
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# Tracepoints like to blow up, so build that before everything else
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xfs-y += $(addprefix scrub/, \
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trace.o \
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agb_bitmap.o \
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agheader.o \
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alloc.o \
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attr.o \
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bitmap.o \
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bmap.o \
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btree.o \
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common.o \
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dabtree.o \
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dir.o \
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dirtree.o \
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fscounters.o \
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health.o \
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ialloc.o \
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inode.o \
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iscan.o \
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listxattr.o \
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metapath.o \
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nlinks.o \
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parent.o \
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readdir.o \
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refcount.o \
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rmap.o \
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scrub.o \
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symlink.o \
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xfarray.o \
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xfblob.o \
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xfile.o \
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)
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xfs-$(CONFIG_XFS_ONLINE_SCRUB_STATS) += scrub/stats.o
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xfs-$(CONFIG_XFS_RT) += $(addprefix scrub/, \
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rgsuper.o \
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rtbitmap.o \
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rtrefcount.o \
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rtrmap.o \
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rtsummary.o \
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)
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xfs-$(CONFIG_XFS_QUOTA) += $(addprefix scrub/, \
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dqiterate.o \
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quota.o \
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quotacheck.o \
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)
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# online repair
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ifeq ($(CONFIG_XFS_ONLINE_REPAIR),y)
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xfs-y += $(addprefix scrub/, \
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agheader_repair.o \
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alloc_repair.o \
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attr_repair.o \
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bmap_repair.o \
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cow_repair.o \
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dir_repair.o \
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dirtree_repair.o \
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findparent.o \
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fscounters_repair.o \
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ialloc_repair.o \
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inode_repair.o \
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newbt.o \
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nlinks_repair.o \
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orphanage.o \
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parent_repair.o \
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rcbag_btree.o \
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rcbag.o \
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reap.o \
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refcount_repair.o \
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repair.o \
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rmap_repair.o \
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symlink_repair.o \
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tempfile.o \
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)
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xfs-$(CONFIG_XFS_RT) += $(addprefix scrub/, \
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rtbitmap_repair.o \
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rtrefcount_repair.o \
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rtrmap_repair.o \
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rtsummary_repair.o \
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)
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xfs-$(CONFIG_XFS_QUOTA) += $(addprefix scrub/, \
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quota_repair.o \
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quotacheck_repair.o \
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)
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endif
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endif
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