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xfs: add a block to inode count converter

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Add new helpers to convert units of fs blocks into inodes, and AG blocks
into AG inodes, respectively.  Convert all the open-coded conversions
and XFS_OFFBNO_TO_AGINO(, , 0) calls to use them, as appropriate.  The
OFFBNO_TO_AGINO macro is retained for xfs_repair.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
2018-12-12 08:46:24 -08:00
parent 7280fedaf3
commit 43004b2a8d
8 changed files with 18 additions and 17 deletions
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4
fs/xfs/xfs_super.c
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@@ -608,7 +608,7 @@ xfs_set_inode_alloc(
}
/* Get the last possible inode in the filesystem */
agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0);
agino = XFS_AGB_TO_AGINO(mp, sbp->sb_agblocks - 1);
ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino);
/*
@@ -1150,7 +1150,7 @@ xfs_fs_statfs(
statp->f_bfree = fdblocks - mp->m_alloc_set_aside;
statp->f_bavail = statp->f_bfree;
fakeinos = statp->f_bfree << sbp->sb_inopblog;
fakeinos = XFS_FSB_TO_INO(mp, statp->f_bfree);
statp->f_files = min(icount + fakeinos, (uint64_t)XFS_MAXINUMBER);
if (mp->m_maxicount)
statp->f_files = min_t(typeof(statp->f_files),