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GFS2: Fix rgrp end rounding problem for bsize < page size

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This patch fixes a bug introduced by commit 7005c3e. That patch
tries to map a vm range for resource groups, but the calculation
breaks down when the block size is less than the page size.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Bob Peterson
2015-10-28 09:05:31 -05:00
parent c36b97e943
commit 31dddd9eb9
1 changed files with 3 additions and 2 deletions
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fs/gfs2/rgrp.c
+3 -2
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@@ -933,8 +933,9 @@ static int read_rindex_entry(struct gfs2_inode *ip)
goto fail; goto fail;
rgd->rd_gl->gl_object = rgd; rgd->rd_gl->gl_object = rgd;
rgd->rd_gl->gl_vm.start = rgd->rd_addr * bsize; rgd->rd_gl->gl_vm.start = (rgd->rd_addr * bsize) & PAGE_CACHE_MASK;
rgd->rd_gl->gl_vm.end = rgd->rd_gl->gl_vm.start + (rgd->rd_length * bsize) - 1; rgd->rd_gl->gl_vm.end = PAGE_CACHE_ALIGN((rgd->rd_addr +
rgd->rd_length) * bsize) - 1;
rgd->rd_rgl = (struct gfs2_rgrp_lvb *)rgd->rd_gl->gl_lksb.sb_lvbptr; rgd->rd_rgl = (struct gfs2_rgrp_lvb *)rgd->rd_gl->gl_lksb.sb_lvbptr;
rgd->rd_flags &= ~(GFS2_RDF_UPTODATE | GFS2_RDF_PREFERRED); rgd->rd_flags &= ~(GFS2_RDF_UPTODATE | GFS2_RDF_PREFERRED);
if (rgd->rd_data > sdp->sd_max_rg_data) if (rgd->rd_data > sdp->sd_max_rg_data)