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c0927a7a53
* Fix a deadlock in the free space allocator due to the AG-walking algorithm forgetting to follow AG-order locking rules. * Make the inode allocator prefer existing free inodes instead of failing to allocate new inode chunks when free space is low. * Set minleft correctly when setting allocator parameters for bmap changes. * Fix uninitialized variable access in the getfsmap code. * Make a distinction between active and passive per-AG structure references. For now, active references are taken to perform some work in an AG on behalf of a high level operation; passive references are used by lower level code to finish operations started by other threads. Eventually this will become part of online shrink. * Split out all the different allocator strategies into separate functions to move us away from design antipattern of filling out a huge structure for various differentish things and issuing a single function multiplexing call. * Various cleanups in the filestreams allocator code, which we might very well want to deprecate instead of continuing. * Fix a bug with the agi rotor code that was introduced earlier in this series. Signed-off-by: Darrick J. Wong <djwong@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQ2qTKExjcn+O1o2YRKO3ySh0YRpgUCY/zgqgAKCRBKO3ySh0YR plIkAQDIscqdqXGH01gF19/ncqG2GUaXY+/zeOReuk1Iv3VEVgD+MVXf+QvHk7LD /LTWNl2K6NQmE/9RtaBt0aFNDzvIAgU= =k7r8 -----END PGP SIGNATURE----- Merge tag 'xfs-6.3-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull moar xfs updates from Darrick Wong: "This contains a fix for a deadlock in the allocator. It continues the slow march towards being able to offline AGs, and it refactors the interface to the xfs allocator to be less indirection happy. Summary: - Fix a deadlock in the free space allocator due to the AG-walking algorithm forgetting to follow AG-order locking rules - Make the inode allocator prefer existing free inodes instead of failing to allocate new inode chunks when free space is low - Set minleft correctly when setting allocator parameters for bmap changes - Fix uninitialized variable access in the getfsmap code - Make a distinction between active and passive per-AG structure references. For now, active references are taken to perform some work in an AG on behalf of a high level operation; passive references are used by lower level code to finish operations started by other threads. Eventually this will become part of online shrink - Split out all the different allocator strategies into separate functions to move us away from design antipattern of filling out a huge structure for various differentish things and issuing a single function multiplexing call - Various cleanups in the filestreams allocator code, which we might very well want to deprecate instead of continuing - Fix a bug with the agi rotor code that was introduced earlier in this series" * tag 'xfs-6.3-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (44 commits) xfs: restore old agirotor behavior xfs: fix uninitialized variable access xfs: refactor the filestreams allocator pick functions xfs: return a referenced perag from filestreams allocator xfs: pass perag to filestreams tracing xfs: use for_each_perag_wrap in xfs_filestream_pick_ag xfs: track an active perag reference in filestreams xfs: factor out MRU hit case in xfs_filestream_select_ag xfs: remove xfs_filestream_select_ag() longest extent check xfs: merge new filestream AG selection into xfs_filestream_select_ag() xfs: merge filestream AG lookup into xfs_filestream_select_ag() xfs: move xfs_bmap_btalloc_filestreams() to xfs_filestreams.c xfs: use xfs_bmap_longest_free_extent() in filestreams xfs: get rid of notinit from xfs_bmap_longest_free_extent xfs: factor out filestreams from xfs_bmap_btalloc_nullfb xfs: convert trim to use for_each_perag_range xfs: convert xfs_alloc_vextent_iterate_ags() to use perag walker xfs: move the minimum agno checks into xfs_alloc_vextent_check_args xfs: fold xfs_alloc_ag_vextent() into callers xfs: move allocation accounting to xfs_alloc_vextent_set_fsbno() ... |
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README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.