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71921ef859
Fix the resource group wrap-around logic in gfs2_rbm_find that commite579ed4f44broke. The bug can lead to unnecessary repeated scanning of the same bitmaps; there is a risk that future changes will turn this into an endless loop. This is an updated version of commit2d29f6b96d("gfs2: Fix loop in gfs2_rbm_find") which ended up being reverted because it introduced a performance regression in iozone (see commite74c98ca2d). Changes since v1: - Simplify the wrap-around logic. - Handle the case where each resource group only has a single bitmap block (small filesystem). - Update rd_extfail_pt whenever we scan the entire bitmap, even when we don't start the scan at the very beginning of the bitmap. Fixes:e579ed4f44("GFS2: Introduce rbm field bii") Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Linux kernel
============
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In order to build the documentation, use ``make htmldocs`` or
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