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gfs2: read journal in large chunks

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Use bios to read in the journal into the address space of the journal inode
(jd_inode), sequentially and in large chunks.  This is faster for locating the
journal head that the previous binary search approach.  When performing
recovery, we keep the journal in the address space until recovery is done,
which further speeds up things.

Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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Abhi Das 2019-05-02 14:17:40 -05:00 • committed by Andreas Gruenbacher
commit f4686c26ec
8 changed files with 219 additions and 139 deletions
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