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Filename Latest commit message Latest commit date
Jeff Layton 95ff775df6 ceph: clean up locking annotation for ceph_get_snap_realm and __lookup_snap_realm 
commit df2c0cb7f8e8c83e495260ad86df8c5da947f2a7 upstream.

They both say that the snap_rwsem must be held for write, but I don't
see any real reason for it, and it's not currently always called that
way.

The lookup is just walking the rbtree, so holding it for read should be
fine there. The "get" is bumping the refcount and (possibly) removing
it from the empty list. I see no need to hold the snap_rwsem for write
for that.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18 08:57:04 +02:00
arch KVM: VMX: Use current VMCS to query WAITPKG support for MSR emulation 2021-08-18 08:57:03 +02:00
block blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit() 2021-08-12 13:20:58 +02:00
certs
crypto
Documentation KVM: X86: MMU: Use the correct inherited permissions to get shadow page 2021-08-15 13:08:04 +02:00
drivers PCI/MSI: Protect msi_desc::masked for multi-MSI 2021-08-18 08:57:03 +02:00
fs ceph: clean up locking annotation for ceph_get_snap_realm and __lookup_snap_realm 2021-08-18 08:57:04 +02:00
include PCI/MSI: Protect msi_desc::masked for multi-MSI 2021-08-18 08:57:03 +02:00
init
ipc
kernel genirq/timings: Prevent potential array overflow in __irq_timings_store() 2021-08-18 08:57:02 +02:00
lib lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-20 16:10:46 +02:00
LICENSES
mm mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
net vsock/virtio: avoid potential deadlock when vsock device remove 2021-08-18 08:57:01 +02:00
samples
scripts scripts/tracing: fix the bug that can't parse raw_trace_func 2021-08-12 13:21:00 +02:00
security
sound ASoC: cs42l42: Fix LRCLK frame start edge 2021-08-18 08:56:58 +02:00
tools bpf, selftests: Adjust few selftest result_unpriv outcomes 2021-08-12 13:21:04 +02:00
usr
virt KVM: Do not leak memory for duplicate debugfs directories 2021-08-12 13:21:03 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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MAINTAINERS
Makefile Linux 5.4.141 2021-08-15 13:08:06 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.