From dd05add7b2b6004c5fa3a1f276f56d8668f86b65 Mon Sep 17 00:00:00 2001 From: Paulo Alcantara Date: Sat, 26 Sep 2026 19:20:30 -0300 Subject: netfs: zero the tail of a short DIO/unbuffered read The buffered read collector zero-fills the tail of a short read that stops below the inode's i_size (netfs_clear_unread()), so a read that races an extending write still returns the expected number of bytes. The non-buffered collector path does no such thing: it just records how much was transferred. Add the same zero-fill for the non-buffered case, gated on NETFS_SREQ_CLEAR_TAIL: a subreq's source sets that flag when a short result from it is known to be safe to treat as a hole, as opposed to NETFS_SREQ_HIT_EOF, which means the read genuinely ran off the end of the file and should be reported short as-is. Only CLEAR_TAIL should zero-fill here; a real EOF must stay a real short read. No source currently sets CLEAR_TAIL on an unbuffered/DIO subrequest, so this is inert on its own -- a following change teaches cifs to set it in the one case that needs it. Fixes: e2d46f2ec332 ("netfs: Change the read result collector to only use one work item") Reviewed-by: David Howells Reviewed-by: Namjae Jeon Signed-off-by: Paulo Alcantara Cc: Christian Brauner Cc: Matthew Wilcox Cc: Ronnie Sahlberg Cc: Shyam Prasad N Cc: Tom Talpey Cc: Bharath SM Cc: stable@vger.kernel.org --- drivers/net/ipa/Makefile | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 drivers/net/ipa/Makefile (limited to 'drivers/net/ipa/Makefile') diff --git a/drivers/net/ipa/Makefile b/drivers/net/ipa/Makefile new file mode 100644 index 000000000..e148ec3c1 --- /dev/null +++ b/drivers/net/ipa/Makefile @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Qualcomm IPA driver. + +IPA_REG_VERSIONS := 3.1 3.5.1 4.2 4.5 4.7 4.9 4.11 5.0 5.5 + +# Some IPA versions can reuse another set of GSI register definitions. +GSI_REG_VERSIONS := 3.1 3.5.1 4.0 4.5 4.9 4.11 5.0 + +IPA_DATA_VERSIONS := 3.1 3.5.1 4.2 4.5 4.7 4.9 4.11 5.0 5.2 5.5 + +obj-$(CONFIG_QCOM_IPA) += ipa.o + +ipa-y := ipa_main.o ipa_power.o ipa_reg.o ipa_mem.o \ + ipa_table.o ipa_interrupt.o gsi.o gsi_reg.o \ + gsi_trans.o ipa_gsi.o ipa_smp2p.o ipa_uc.o \ + ipa_endpoint.o ipa_cmd.o ipa_modem.o \ + ipa_resource.o ipa_qmi.o ipa_qmi_msg.o \ + ipa_sysfs.o + +ipa-y += $(IPA_REG_VERSIONS:%=reg/ipa_reg-v%.o) + +ipa-y += $(GSI_REG_VERSIONS:%=reg/gsi_reg-v%.o) + +ipa-y += $(IPA_DATA_VERSIONS:%=data/ipa_data-v%.o) -- cgit v1.3.1