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path: root/fs/xfs/libxfs/xfs_fs.h
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2017-10-26xfs: scrub AGF and AGFLDarrick J. Wong1-1/+3
Check the block references in the AGF and AGFL headers to make sure they make sense. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Dave Chinner <[email protected]>
2017-10-26xfs: scrub the secondary superblocksDarrick J. Wong1-1/+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 <[email protected]> Reviewed-by: Dave Chinner <[email protected]>
2017-10-26xfs: probe the scrub ioctlDarrick J. Wong1-1/+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 <[email protected]> Reviewed-by: Dave Chinner <[email protected]>
2017-10-26xfs: create an ioctl to scrub AG metadataDarrick J. Wong1-0/+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 <[email protected]> Reviewed-by: Dave Chinner <[email protected]>
2017-06-19xfs: remove double-underscore integer typesDarrick J. Wong1-6/+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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
2017-06-19xfs: remove XFS_HSIZEChristoph Hellwig1-4/+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 <[email protected]> Reviewed-by: Eric Sandeen <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2017-04-03xfs: implement the GETFSMAP ioctlDarrick J. Wong1-0/+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 <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2016-10-05xfs: create a separate cow extent size hint for the allocatorDarrick J. Wong1-1/+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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
2016-10-05xfs: teach get_bmapx about shared extents and the CoW forkDarrick J. Wong1-1/+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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
2016-10-04xfs: add reflink feature flag to geometryDarrick J. Wong1-1/+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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
2016-08-03xfs: add rmap btree geometry feature flagDarrick J. Wong1-0/+1
Originally-From: Dave Chinner <[email protected]> So xfs_info and other userspace utilities know the filesystem is using this feature. Signed-off-by: Dave Chinner <[email protected]> Reviewed-by: Brian Foster <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2016-06-01xfs: define XFS_IOC_FREEZE even if FIFREEZE is definedChristoph Hellwig1-6/+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 <[email protected]> Reviewed-by: Eric Sandeen <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2016-01-04xfs: use FS_XFLAG definitions directlyDave Chinner1-19/+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 <[email protected]>
2016-01-04fs: XFS_IOC_FS[SG]SETXATTR to FS_IOC_FS[SG]ETXATTR promotionDave Chinner1-33/+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 <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-10-12xfs: prefix XATTR_LIST_MAX with XFS_Jan Tulak1-0/+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 <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-05-29xfs: add fs geometry bit for sparse inode chunksBrian Foster1-0/+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 <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-01-09xfs: move xfs_fs.h to libxfsDave Chinner1-0/+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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
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