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Shyam Prasad N 385eb3fcc6 cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.
[ Upstream commit a738c93fb1c17e386a09304b517b1c6b2a6a5a8b ]

While debugging another issue today, Steve and I noticed that if a
subdir for a file share is already mounted on the client, any new
mount of any other subdir (or the file share root) of the same share
results in sharing the cifs superblock, which e.g. can result in
incorrect device name.

While setting prefix path for the root of a cifs_sb,
CIFS_MOUNT_USE_PREFIX_PATH flag should also be set.
Without it, prepath is not even considered in some places,
and output of "mount" and various /proc/<>/*mount* related
options can be missing part of the device name.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-12 12:52:09 +08:00
Documentation KVM: Forbid the use of tagged userspace addresses for memslots 2021-04-12 12:51:44 +08:00
LICENSES Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
arch arm64: tegra: Add power-domain for Tegra210 HDA 2021-04-12 12:52:08 +08:00
block bfq-iosched: Revert "bfq: Fix computation of shallow depth" 2021-04-12 12:52:02 +08:00
certs Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
crypto crypto: asym_tpm: correct zero out potential secrets 2021-04-12 12:51:10 +08:00
drivers cxgb4: Add new T6 PCI device id 0x6092 2021-04-12 12:52:09 +08:00
fs cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath. 2021-04-12 12:52:09 +08:00
include mm: provide a saner PTE walking API for modules 2021-04-12 12:52:09 +08:00
init fgraph: Initialize tracing_graph_pause at task creation 2021-04-12 12:51:55 +08:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2021-03-16 16:27:51 +08:00
kernel bpf: Fix truncation handling for mod32 dst reg wrt zero 2021-04-12 12:52:08 +08:00
lib udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-04-12 12:52:05 +08:00
mm mm: provide a saner PTE walking API for modules 2021-04-12 12:52:09 +08:00
net net: bridge: Fix a warning when del bridge sysfs 2021-04-12 12:52:07 +08:00
package generate-rpms: modify the name of the kernel tag for x86 and arm64 2021-04-07 06:53:59 +00:00
samples samples: bpf: Fix lwt_len_hist reusing previous BPF map 2021-03-16 16:42:53 +08:00
scripts scripts: set proper OpenSSL include dir also for sign-file 2021-04-12 12:52:09 +08:00
security cap: fix conversions on getxattr 2021-04-12 12:52:02 +08:00
sound ASoC: ak4458: correct reset polarity 2021-04-12 12:51:59 +08:00
tools selftests: txtimestamp: fix compilation issue 2021-04-12 12:52:04 +08:00
usr Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-04-12 12:52:09 +08:00
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MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2021-03-16 16:34:24 +08:00
Makefile x86/build: Disable CET instrumentation in the kernel 2021-04-12 12:51:57 +08:00
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README.md

Tencent Linux Kernel 4.0