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Kirill A. Shutemov ef18a1ca84 mm/thp: allow dropping THP from page cache 
Once a THP is added to the page cache, it cannot be dropped via
/proc/sys/vm/drop_caches.  Fix this issue with proper handling in
invalidate_mapping_pages().

Link: http://lkml.kernel.org/r/20191017164223.2762148-5-songliubraving@fb.com
Fixes: 99cb0dbd47 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Song Liu <songliubraving@fb.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-19 06:32:33 -04:00
arch
block
certs
crypto
Documentation
drivers zram: fix race between backing_dev_show and backing_dev_store 2019-10-19 06:32:32 -04:00
fs proc/meminfo: fix output alignment 2019-10-19 06:32:32 -04:00
include
init
ipc
kernel
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LICENSES
mm mm/thp: allow dropping THP from page cache 2019-10-19 06:32:33 -04:00
net
samples
scripts scripts/gdb: fix lx-dmesg when CONFIG_PRINTK_CALLER is set 2019-10-19 06:32:31 -04:00
security
sound
tools mm/gup_benchmark: add a missing "w" to getopt string 2019-10-19 06:32:32 -04:00
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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.