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path: root/fs/xfs/scrub/common.h
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* xfs: pass inode number to xfs_scrub_ino_set_{preen,warning}Darrick J. Wong2017-11-091-2/+3
| | | | | | | | | | | | | | | There are two ways to scrub an inode -- calling xfs_iget and checking the raw inode core, or by loading the inode cluster buffer and checking the on-disk contents directly. The second method is only useful if _iget fails the verifiers; when this is the case, sc->ip is NULL and calling the tracepoint will cause a system crash. Therefore, pass the raw inode number directly into the _preen and _warning functions. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub quota informationDarrick J. Wong2017-10-271-0/+9
| | | | | | | Perform some quick sanity testing of the disk quota information. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub realtime bitmap/summaryDarrick J. Wong2017-10-271-0/+9
| | | | | | | Perform simple tests of the realtime bitmap and summary. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub directory parent pointersDarrick J. Wong2017-10-271-0/+2
| | | | | | | | | Scrub parent pointers, sort of. For directories, we can ride the '..' entry up to the parent to confirm that there's at most one dentry that points back to this directory. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub symbolic linksDarrick J. Wong2017-10-271-0/+2
| | | | | | | Create the infrastructure to scrub symbolic link data. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub extended attributesDarrick J. Wong2017-10-271-0/+2
| | | | | | | | | Scrub the hash tree, keys, and values in an extended attribute structure. Refactor the attribute code to use the transaction if the caller supplied one to avoid buffer deadocks. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub directory metadataDarrick J. Wong2017-10-271-0/+4
| | | | | | | Scrub the hash tree and all the entries in a directory. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub inode block mappingsDarrick J. Wong2017-10-271-1/+4
| | | | | | | Scrub an individual inode's block mappings to make sure they make sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub inodesDarrick J. Wong2017-10-271-0/+3
| | | | | | | Scrub the fields within an inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub refcount btreesDarrick J. Wong2017-10-271-0/+2
| | | | | | | | | Plumb in the pieces necessary to check the refcount btree. If rmap is available, check the reference count by performing an interval query against the rmapbt. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub rmap btreesDarrick J. Wong2017-10-271-0/+2
| | | | | | | | Check the reverse mapping records to make sure that the contents make sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub inode btreesDarrick J. Wong2017-10-271-0/+3
| | | | | | | | Check the records of the inode btrees to make sure that the values make sense given the inode records themselves. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub free space btreesDarrick J. Wong2017-10-271-0/+6
| | | | | | | | Check the extent records free space btrees to ensure that the values look sane. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub AGF and AGFLDarrick J. Wong2017-10-271-0/+4
| | | | | | | | Check the block references in the AGF and AGFL headers to make sure they make sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub the secondary superblocksDarrick J. Wong2017-10-271-0/+2
| | | | | | | | | Ensure that the geometry presented in the backup superblocks matches the primary superblock so that repair can recover the filesystem if that primary gets corrupted. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: create helpers to scan an allocation groupDarrick J. Wong2017-10-271-0/+10
| | | | | | | | | Add some helpers to enable us to lock an AG's headers, create btree cursors for all btrees in that allocation group, and clean up afterwards. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: create helpers to record and deal with scrub problemsDarrick J. Wong2017-10-271-0/+23
| | | | | | | | Create helper functions to record crc and corruption problems, and deal with any other runtime errors that arise. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: probe the scrub ioctlDarrick J. Wong2017-10-271-0/+57
Create a probe scrubber with id 0. This will be used by xfs_scrub to probe the kernel's abilities to scrub (and repair) the metadata. We do this by validating the ioctl inputs from userspace, preparing the filesystem for a scrub (or a repair) operation, and immediately returning to userspace. Userspace can use the returned errno and structure state to decide (in broad terms) if scrub/repair are supported by the running kernel. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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