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/usb/Makefile | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 drivers/usb/Makefile (limited to 'drivers/usb/Makefile') diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile new file mode 100644 index 000000000..eecbd631f --- /dev/null +++ b/drivers/usb/Makefile @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the kernel USB device drivers. +# + +# Object files in subdirectories + +obj-$(CONFIG_USB_COMMON) += common/ +obj-$(CONFIG_USB) += core/ +obj-$(CONFIG_USB_SUPPORT) += phy/ + +obj-$(CONFIG_USB_DWC3) += dwc3/ +obj-$(CONFIG_USB_DWC2) += dwc2/ +obj-$(CONFIG_USB_ISP1760) += isp1760/ + +obj-$(CONFIG_USB_CDNS_SUPPORT) += cdns3/ + +obj-$(CONFIG_USB_FOTG210) += fotg210/ + +obj-$(CONFIG_USB_MON) += mon/ +obj-$(CONFIG_USB_MTU3) += mtu3/ + +obj-$(CONFIG_USB_PCI) += host/ +obj-$(CONFIG_USB_EHCI_HCD) += host/ +obj-$(CONFIG_USB_ISP116X_HCD) += host/ +obj-$(CONFIG_USB_OHCI_HCD) += host/ +obj-$(CONFIG_USB_UHCI_HCD) += host/ +obj-$(CONFIG_USB_FHCI_HCD) += host/ +obj-$(CONFIG_USB_XHCI_HCD) += host/ +obj-$(CONFIG_USB_SL811_HCD) += host/ +obj-$(CONFIG_USB_R8A66597_HCD) += host/ +obj-$(CONFIG_USB_FSL_USB2) += host/ +obj-$(CONFIG_USB_FOTG210_HCD) += host/ +obj-$(CONFIG_USB_MAX3421_HCD) += host/ +obj-$(CONFIG_USB_XEN_HCD) += host/ + +obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ + +obj-$(CONFIG_USB_ACM) += class/ +obj-$(CONFIG_USB_PRINTER) += class/ +obj-$(CONFIG_USB_WDM) += class/ +obj-$(CONFIG_USB_TMC) += class/ + +obj-$(CONFIG_USB_STORAGE) += storage/ +obj-$(CONFIG_USB) += storage/ + +obj-$(CONFIG_USB_MDC800) += image/ +obj-$(CONFIG_USB_MICROTEK) += image/ + +obj-$(CONFIG_USB_SERIAL) += serial/ + +obj-$(CONFIG_USB) += misc/ +obj-$(CONFIG_EARLY_PRINTK_USB) += early/ + +obj-$(CONFIG_USB_ATM) += atm/ +obj-$(CONFIG_USB_SPEEDTOUCH) += atm/ + +obj-$(CONFIG_USB_MUSB_HDRC) += musb/ +obj-$(CONFIG_USB_CHIPIDEA) += chipidea/ +obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/ +obj-$(CONFIG_USB_GADGET) += gadget/ + +obj-$(CONFIG_USBIP_CORE) += usbip/ + +obj-$(CONFIG_TYPEC) += typec/ + +obj-$(CONFIG_USB_ROLE_SWITCH) += roles/ -- cgit v1.3.1