Hi
These patches modify __bio_add_page to accept pages that extent the last bio
segment. some drivers craft their buffers and rely on this behavior (see
message in patch 2 for details)
jan
v3: Use code from __blk_recalc_rq_segments to decide whether the page is
mergeable,
v2: modify a comment
Jan Vesely (2):
block: factor out vector mergeable decision to a helper function
block: modify __bio_add_page check to accept pages that don't start a new
block/blk-merge.c | 52 +++++++++++++++++++++++++++++++---------------------
fs/bio.c | 29 ++++++++++++++++++-----------
include/linux/bio.h | 3 +++
3 files changed, 52 insertions(+), 32 deletions(-)
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