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authorAndreas Gruenbacher <agruenba@redhat.com>2019-12-08 13:12:49 +0000
committerAndreas Gruenbacher <agruenba@redhat.com>2020-01-07 12:30:36 +0100
commiteed0f953b90e86e765197a1dad06bb48aedc27fe (patch)
treef831f9cca03469c6e6a6b2dfc372da294ad439b1 /fs/kernfs
parent887352fb5ffd593d28f77059c09dabb47c5b86e9 (diff)
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gfs2: Another gfs2_find_jhead fix
On filesystems with a block size smaller than the page size, gfs2_find_jhead can split a page across two bios (for example, when blocks are not allocated consecutively). When that happens, the first bio that completes will unlock the page in its bi_end_io handler even though the page hasn't been read completely yet. Fix that by using a chained bio for the rest of the page. While at it, clean up the sector calculation logic in gfs2_log_alloc_bio. In gfs2_find_jhead, simplify the disk block and offset calculation logic and fix a variable name. Fixes: f4686c26ecc3 ("gfs2: read journal in large chunks") Cc: stable@vger.kernel.org # v5.2+ Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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