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xfs: convert rt bitmap extent lengths to xfs_rtbxlen_t

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[ Upstream commit f29c3e745dc253bf9d9d06ddc36af1a534ba1dd0 ]

[ 6.1: excluded changes to trace.h as xchk_rtsum_record_free
does not exist yet ]

XFS uses xfs_rtblock_t for many different uses, which makes it much more
difficult to perform a unit analysis on the codebase.  One of these
(ab)uses is when we need to store the length of a free space extent as
stored in the realtime bitmap.  Because there can be up to 2^64 realtime
extents in a filesystem, we need a new type that is larger than
xfs_rtxlen_t for callers that are querying the bitmap directly.  This
means scrub and growfs.

Create this type as "xfs_rtbxlen_t" and use it to store 64-bit rtx
lengths.  'b' stands for 'bitmap' or 'big'; reader's choice.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Darrick J. Wong 2025-03-13 13:25:31 -07:00 committed by Greg Kroah-Hartman
parent 6744e7b06c
commit e377031115
3 changed files with 3 additions and 2 deletions
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2
fs/xfs/libxfs/xfs_format.h
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@ -98,7 +98,7 @@ typedef struct xfs_sb {
uint32_t sb_blocksize; /* logical block size, bytes */
xfs_rfsblock_t sb_dblocks; /* number of data blocks */
xfs_rfsblock_t sb_rblocks; /* number of realtime blocks */
xfs_rtblock_t sb_rextents; /* number of realtime extents */
xfs_rtbxlen_t sb_rextents; /* number of realtime extents */
uuid_t sb_uuid; /* user-visible file system unique id */
xfs_fsblock_t sb_logstart; /* starting block of log if internal */
xfs_ino_t sb_rootino; /* root inode number */

2
fs/xfs/libxfs/xfs_rtbitmap.h
View File

@ -13,7 +13,7 @@
*/
struct xfs_rtalloc_rec {
xfs_rtblock_t ar_startext;
xfs_rtblock_t ar_extcount;
xfs_rtbxlen_t ar_extcount;
};
typedef int (*xfs_rtalloc_query_range_fn)(

1
fs/xfs/libxfs/xfs_types.h
View File

@ -31,6 +31,7 @@ typedef uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
typedef uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
typedef uint64_t xfs_fileoff_t; /* block number in a file */
typedef uint64_t xfs_filblks_t; /* number of blocks in a file */
typedef uint64_t xfs_rtbxlen_t; /* rtbitmap extent length in rtextents */
typedef int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */