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| author | Dave Chinner <dchinner@redhat.com> | 2023-02-13 01:14:54 +0300 |
|---|---|---|
| committer | Dave Chinner <dchinner@redhat.com> | 2023-02-13 01:14:54 +0300 |
| commit | 3432ef6111997f39d2f708dd508159dfaca72942 (patch) | |
| tree | b481d532ef756c48dc2db4b2d2656ba391872bf1 /fs/xfs/libxfs/xfs_ag.h | |
| parent | 8b81356825ffb96b3b167b4dabbbbdb506bb0e0b (diff) | |
| download | linux-3432ef6111997f39d2f708dd508159dfaca72942.tar.xz | |
xfs: convert xfs_alloc_vextent_iterate_ags() to use perag walker
Now that the AG iteration code in the core allocation code has been
cleaned up, we can easily convert it to use a for_each_perag..()
variant to use active references and skip AGs that it can't get
active references on.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_ag.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ag.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h index 8f43b91d4cf3..5e18536dfdce 100644 --- a/fs/xfs/libxfs/xfs_ag.h +++ b/fs/xfs/libxfs/xfs_ag.h @@ -253,6 +253,7 @@ xfs_perag_next_wrap( struct xfs_perag *pag, xfs_agnumber_t *agno, xfs_agnumber_t stop_agno, + xfs_agnumber_t restart_agno, xfs_agnumber_t wrap_agno) { struct xfs_mount *mp = pag->pag_mount; @@ -260,10 +261,11 @@ xfs_perag_next_wrap( *agno = pag->pag_agno + 1; xfs_perag_rele(pag); while (*agno != stop_agno) { - if (*agno >= wrap_agno) - *agno = 0; - if (*agno == stop_agno) - break; + if (*agno >= wrap_agno) { + if (restart_agno >= stop_agno) + break; + *agno = restart_agno; + } pag = xfs_perag_grab(mp, *agno); if (pag) @@ -274,14 +276,20 @@ xfs_perag_next_wrap( } /* - * Iterate all AGs from start_agno through wrap_agno, then 0 through + * Iterate all AGs from start_agno through wrap_agno, then restart_agno through * (start_agno - 1). */ -#define for_each_perag_wrap_at(mp, start_agno, wrap_agno, agno, pag) \ +#define for_each_perag_wrap_range(mp, start_agno, restart_agno, wrap_agno, agno, pag) \ for ((agno) = (start_agno), (pag) = xfs_perag_grab((mp), (agno)); \ (pag) != NULL; \ (pag) = xfs_perag_next_wrap((pag), &(agno), (start_agno), \ - (wrap_agno))) + (restart_agno), (wrap_agno))) +/* + * Iterate all AGs from start_agno through wrap_agno, then 0 through + * (start_agno - 1). + */ +#define for_each_perag_wrap_at(mp, start_agno, wrap_agno, agno, pag) \ + for_each_perag_wrap_range((mp), (start_agno), 0, (wrap_agno), (agno), (pag)) /* * Iterate all AGs from start_agno through to the end of the filesystem, then 0 |