https://github.com/torvalds/linux
blk_queue_bio() does split then bounce, which makes the segment counting based on pages before bouncing and could go wrong. Move the split to after bouncing, like we do for blk-mq, and the we fix the issue of having the bio count for segments be wrong. Fixes: 54efd50bfd87 ("block: make generic_make_request handle arbitrarily sized bios") Cc: stable@vger.kernel.org Tested-by: Artem S. Tashkinov <t.artem@lycos.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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block: ensure to split after potentially bouncing a bio
# ==========================================================================
# Signing modules
# ==========================================================================
PHONY := __modsign
__modsign:
include scripts/Kbuild.include
__modules := $(sort $(shell grep -h '\.ko$$' /dev/null $(wildcard $(MODVERDIR)/*.mod)))
modules := $(patsubst %.o,%.ko,$(wildcard $(__modules:.ko=.o)))
PHONY += $(modules)
__modsign: $(modules)
@:
quiet_cmd_sign_ko = SIGN [M] $(2)/$(notdir $@)
cmd_sign_ko = $(mod_sign_cmd) $(2)/$(notdir $@)
# Modules built outside the kernel source tree go into extra by default
INSTALL_MOD_DIR ?= extra
ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(patsubst %/,%,$(KBUILD_EXTMOD)),,$(@D))
modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D))
$(modules):
$(call cmd,sign_ko,$(MODLIB)/$(modinst_dir))
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable se we can use it in if_changed and friends.
.PHONY: $(PHONY)
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