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With the traditional page-based writes, blocks are allocated separately for each page written to. With iomap writes, we can allocate a lot more blocks at once, with a fraction of the allocation overhead for each page. Split calculating the number of blocks that can be allocated at a given position (gfs2_alloc_size) off from gfs2_iomap_alloc: that size determines the number of blocks to allocate and reserve in the journal. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Bob Peterson <rpeterso@redhat.com>
19 lines
587 B
19 lines
587 B