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* xfs: convert to SPDX license tagsDave Chinner2018-06-061-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the verbose license text from XFS files and replace them with SPDX tags. This does not change the license of any of the code, merely refers to the common, up-to-date license files in LICENSES/ This change was mostly scripted. fs/xfs/Makefile and fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected and modified by the following command: for f in `git grep -l "GNU General" fs/xfs/` ; do echo $f cat $f | awk -f hdr.awk > $f.new mv -f $f.new $f done And the hdr.awk script that did the modification (including detecting the difference between GPL-2.0 and GPL-2.0+ licenses) is as follows: $ cat hdr.awk BEGIN { hdr = 1.0 tag = "GPL-2.0" str = "" } /^ \* This program is free software/ { hdr = 2.0; next } /any later version./ { tag = "GPL-2.0+" next } /^ \*\// { if (hdr > 0.0) { print "// SPDX-License-Identifier: " tag print str print $0 str="" hdr = 0.0 next } print $0 next } /^ \* / { if (hdr > 1.0) next if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 next } /^ \*/ { if (hdr > 0.0) next print $0 next } // { if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 } END { } $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
* xfs: implement the metadata repair ioctl flagDarrick J. Wong2018-05-151-1/+8
| | | | | | | | | | | Plumb in the pieces necessary to make the "scrub" subfunction of the scrub ioctl actually work. This means that we make the IFLAG_REPAIR flag to the scrub ioctl actually do something, and we add an errortag knob so that xfstests can force the kernel to rebuild a metadata structure even if there's nothing wrong with it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: check sb_agblocks and sb_agblklog when validating superblockDarrick J. Wong2018-01-171-0/+7
| | | | | | | | | | | | | Currently, we don't check sb_agblocks or sb_agblklog when we validate the superblock, which means that we can fuzz garbage values into those values and the mount succeeds. This leads to all sorts of UBSAN warnings in xfs/350 since we can then coerce other parts of xfs into shifting by ridiculously large values. Once we've validated agblocks, make sure the agcount makes sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
* xfs: scrub quota informationDarrick J. Wong2017-10-261-1/+4
| | | | | | | 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. Wong2017-10-261-1/+3
| | | | | | | 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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+2
| | | | | | | 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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+2
| | | | | | | 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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+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. Wong2017-10-261-1/+3
| | | | | | | | 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 the AGIDarrick J. Wong2017-10-261-1/+2
| | | | | | | | Add a forgotten check to the AGI verifier, then wire up the scrub infrastructure to check the AGI contents. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: scrub AGF and AGFLDarrick J. Wong2017-10-261-1/+3
| | | | | | | | 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. Wong2017-10-261-1/+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: probe the scrub ioctlDarrick J. Wong2017-10-261-1/+2
| | | | | | | | | | | | | 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>
* xfs: create an ioctl to scrub AG metadataDarrick J. Wong2017-10-261-0/+53
| | | | | | | | | | Create an ioctl that can be used to scrub internal filesystem metadata. The new ioctl takes the metadata type, an (optional) AG number, an (optional) inode number and generation, and a flags argument. This will be used by the upcoming XFS online scrub tool. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
* xfs: remove double-underscore integer typesDarrick J. Wong2017-06-191-6/+6
| | | | | | | | | | | | | | | | | | | | This is a purely mechanical patch that removes the private __{u,}int{8,16,32,64}_t typedefs in favor of using the system {u,}int{8,16,32,64}_t typedefs. This is the sed script used to perform the transformation and fix the resulting whitespace and indentation errors: s/typedef\t__uint8_t/typedef __uint8_t\t/g s/typedef\t__uint/typedef __uint/g s/typedef\t__int\([0-9]*\)_t/typedef int\1_t\t/g s/__uint8_t\t/__uint8_t\t\t/g s/__uint/uint/g s/__int\([0-9]*\)_t\t/__int\1_t\t\t/g s/__int/int/g /^typedef.*int[0-9]*_t;$/d Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* xfs: remove XFS_HSIZEChristoph Hellwig2017-06-191-4/+0
| | | | | | | | | | | | | | XFS_HSIZE is an extremly confusing way to calculate the size of handle_t. Given that handle_t always only had two sizes, and one of them isn't even covered by XFS_HSIZE to start with just remove the macro and use a constant sizeof expression. Note that XFS_HSIZE isn't used in xfsprogs, xfsdump or xfstests either. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
* xfs: implement the GETFSMAP ioctlDarrick J. Wong2017-04-031-0/+13
| | | | | | | | Introduce a new ioctl that uses the reverse mapping btree to return information about the physical layout of the filesystem. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
* xfs: create a separate cow extent size hint for the allocatorDarrick J. Wong2016-10-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | Create a per-inode extent size allocator hint for copy-on-write. This hint is separate from the existing extent size hint so that CoW can take advantage of the fragmentation-reducing properties of extent size hints without disabling delalloc for regular writes. The extent size hint that's fed to the allocator during a copy on write operation is the greater of the cowextsize and regular extsize hint. During reflink, if we're sharing the entire source file to the entire destination file and the destination file doesn't already have a cowextsize hint, propagate the source file's cowextsize hint to the destination file. Furthermore, zero the bulkstat buffer prior to setting the fields so that we don't copy kernel memory contents into userspace. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* xfs: teach get_bmapx about shared extents and the CoW forkDarrick J. Wong2016-10-051-1/+3
| | | | | | | | | Teach xfs_getbmapx how to report shared extents and CoW fork contents accurately in the bmap output by querying the refcount btree appropriately. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* xfs: add reflink feature flag to geometryDarrick J. Wong2016-10-041-1/+2
| | | | | | | | Report the reflink feature in the XFS geometry so that xfs_info and friends know the filesystem has this feature. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* xfs: add rmap btree geometry feature flagDarrick J. Wong2016-08-031-0/+1
| | | | | | | | | | | | Originally-From: Dave Chinner <dchinner@redhat.com> So xfs_info and other userspace utilities know the filesystem is using this feature. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
* xfs: define XFS_IOC_FREEZE even if FIFREEZE is definedChristoph Hellwig2016-06-011-6/+2
| | | | | | | | | | | | And the same for XFS_IOC_THAW. Just because we now have a common version of the ioctl we still need to provide the old name for it for anyone using those. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
* xfs: use FS_XFLAG definitions directlyDave Chinner2016-01-041-19/+0
| | | | | | | | | | | Now that the ioctls have been hoisted up to the VFS level, use the VFs definitions directly and remove the XFS specific definitions completely. Userspace is going to have to handle the change of this interface separately, so removing the definitions from xfs_fs.h is not an issue here at all. Signed-off-by: Dave Chinner <dchinner@redhat.com>
* fs: XFS_IOC_FS[SG]SETXATTR to FS_IOC_FS[SG]ETXATTR promotionDave Chinner2016-01-041-33/+18
| | | | | | | | | | | Hoist the ioctl definitions for the XFS_IOC_FS[SG]SETXATTR API from fs/xfs/libxfs/xfs_fs.h to include/uapi/linux/fs.h so that the ioctls can be used by all filesystems, not just XFS. This enables (initially) ext4 to use the ioctl to set project IDs on inodes. Based-on-patch-from: Li Xi <lixi@ddn.com> Signed-off-by: Dave Chinner <dchinner@redhat.com>
* xfs: prefix XATTR_LIST_MAX with XFS_Jan Tulak2015-10-121-0/+10
| | | | | | | | | | Remove a hard dependency of Linux XATTR_LIST_MAX value by using a prefixed version. This patch reflects the same change in xfsprogs. Signed-off-by: Jan Tulak <jtulak@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
* xfs: add fs geometry bit for sparse inode chunksBrian Foster2015-05-291-0/+1
| | | | | | | | | | Define an fs geometry bit for sparse inode chunks such that the characteristic of the fs can be identified by userspace. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
* xfs: move xfs_fs.h to libxfsDave Chinner2015-01-091-0/+576
Ioctl API definitions are shared with userspace, so move the header file that defines them all to libxfs along with all the other code shared with userspace. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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