diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_ag.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ag.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h index ec37f9d9f310..33783120263c 100644 --- a/fs/xfs/libxfs/xfs_ag.h +++ b/fs/xfs/libxfs/xfs_ag.h @@ -114,6 +114,23 @@ struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t, int tag); void xfs_perag_put(struct xfs_perag *pag); +/* + * Perag iteration APIs + */ +#define for_each_perag(mp, next_agno, pag) \ + for ((next_agno) = 0, (pag) = xfs_perag_get((mp), 0); \ + (pag) != NULL; \ + (next_agno) = (pag)->pag_agno + 1, \ + xfs_perag_put(pag), \ + (pag) = xfs_perag_get((mp), (next_agno))) + +#define for_each_perag_tag(mp, next_agno, pag, tag) \ + for ((next_agno) = 0, (pag) = xfs_perag_get_tag((mp), 0, (tag)); \ + (pag) != NULL; \ + (next_agno) = (pag)->pag_agno + 1, \ + xfs_perag_put(pag), \ + (pag) = xfs_perag_get_tag((mp), (next_agno), (tag))) + struct aghdr_init_data { /* per ag data */ xfs_agblock_t agno; /* ag to init */ |