gfs2: More gfs2_find_jhead fixes
It turns out that when extending an existing bio, gfs2_find_jhead fails to check if the block number is consecutive, which leads to incorrect reads for fragmented journals. In addition, limit the maximum bio size to an arbitrary value of 2 megabytes: since commit 07173c3e ("block: enable multipage bvecs"), if we just keep adding pages until bio_add_page fails, bios will grow much larger than useful, which pins more memory than necessary with barely any additional performance gains. Fixes: f4686c26 ("gfs2: read journal in large chunks") Cc: stable@vger.kernel.org # v5.2+ Signed-off-by:Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by:
Bob Peterson <rpeterso@redhat.com>
parent
566a2ab3
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