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Alessio Balsini 54b41388f5 ANDROID: vfs: add d_canonical_path for stacked filesystem support
Inotify does not currently know when a filesystem is acting as a wrapper
around another fs. This means that inotify watchers will miss any
modifications to the base file, as well as any made in a separate stacked
fs that points to the same file.
d_canonical_path solves this problem by allowing the fs to map a dentry to
a path in the lower fs. Inotify can use it to find the appropriate place to
watch to be informed of all changes to a file.

Test: Pixel 4.19
Bug: 171780975
Change-Id: I09563baffad1711a045e45c1bd0bd8713c2cc0b6
Signed-off-by: Daniel Rosenberg <drosen@google.com>
[astrachan: Folded 34df4102216e ("ANDROID: fsnotify: Notify lower fs of
            open") into this patch]
Signed-off-by: Alistair Strachan <astrachan@google.com>
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Signed-off-by: Alessio Balsini <balsini@google.com>
2020-11-09 13:11:29 +00:00
android ANDROID: GKI: update the ABI xml 2020-10-30 12:21:53 +08:00
arch This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
block This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto This is the 4.19.153 stable release 2020-10-29 11:36:20 +01:00
Documentation This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
drivers This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs ANDROID: vfs: add d_canonical_path for stacked filesystem support 2020-11-09 13:11:29 +00:00
include ANDROID: vfs: add d_canonical_path for stacked filesystem support 2020-11-09 13:11:29 +00:00
init This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
ipc Revert "ANDROID: vfs: Add permission2 for filesystems with per mount permissions" 2020-06-27 15:17:42 +02:00
kernel This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
lib This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm UPSTREAM: mm/sl[uo]b: export __kmalloc_track(_node)_caller 2020-11-02 16:12:14 +00:00
net ANDROID: Temporarily disable XFRM_USER_COMPAT filtering 2020-11-05 18:12:45 +00:00
samples This is the 4.19.154 stable release 2020-10-30 11:43:26 +01:00
scripts This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
security This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
sound This is the 4.19.153 stable release 2020-10-29 11:36:20 +01:00
tools This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch 2020-10-01 13:14:54 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
build.config.aarch64 ANDROID: Publish uncompressed Image on aarch64 2020-11-01 15:13:43 +00:00
build.config.allmodconfig ANDROID: build.config.allmodconfig: Re-enable XFS_FS 2020-04-17 08:41:31 +00:00
build.config.allmodconfig.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.arm ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.arm ANDROID: move builds to use gas prebuilts 2020-10-19 21:13:08 +00:00
build.config.common ANDROID: clang: update to 11.0.5 2020-10-27 11:18:23 -07:00
build.config.gki ANDROID: gki: Removed cf modules from gki_defconfig 2020-01-31 16:23:38 -08:00
build.config.gki_kasan ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kasan.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kasan.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki-debug.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki-debug.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki.aarch64 ANDROID: GKI: prevent removal of monitored symbols 2020-09-29 11:48:43 +01:00
build.config.gki.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.x86_64 ANDROID: move builds to use gas prebuilts 2020-10-19 21:13:08 +00:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS UPSTREAM: net: WireGuard secure network tunnel 2020-10-25 11:48:12 +01:00
Makefile This is the 4.19.155 stable release 2020-11-05 14:02:27 +01:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.