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30f62b92e6
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Vishal Moola (Oracle) 30f62b92e6 mm/gup: remove unnecessary check in memfd_pin_folios() 
Patch series "mm/gup: Cleanup memfd_pin_folios()".

A couple straightforward cleanups to memfd_pin_folios() found through code
inspection.  Saves 124 bytes of kernel text overall and makes the code
more readable.


This patch (of 2):

Commit 89c1905d9c ("mm/gup: introduce memfd_pin_folios() for pinning
memfd folios") checks if filemap_get_folios_contig() returned duplicate
folios to prevent multiple attempts at pinning the same folio.

Commit 8ab1b16023 ("mm: fix filemap_get_folios_contig returning batches
of identical folios") ensures that filemap_get_folios_contig() returns a
batch of distinct folios.

We can remove the duplicate folio check to simplify the code and save 58
bytes of text.

Link: https://lkml.kernel.org/r/20250430010059.892632-1-vishal.moola@gmail.com
Link: https://lkml.kernel.org/r/20250430010059.892632-2-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-12 23:50:51 -07:00
arch mm, x86: use for_each_valid_pfn() from __ioremap_check_ram() 2025-05-12 23:50:44 -07:00
block block-6.15-20250509 2025-05-09 10:34:50 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: scompress - increment scomp_scratch_users when already allocated 2025-04-25 10:33:30 +08:00
Documentation docs/mm/damon/design: fix spelling mistake 2025-05-12 23:50:49 -07:00
drivers DAX: warn when kmem regions are truncated for memory block alignment 2025-05-12 23:50:49 -07:00
fs f2fs: drop usage of folio_index 2025-05-12 23:50:50 -07:00
include mm, swap: remove no longer used swap mapping helper 2025-05-12 23:50:51 -07:00
init mm/memcg: move mem_cgroup_init() ahead of cgroup_init() 2025-05-12 23:50:34 -07:00
io_uring io_uring/sqpoll: Increase task_work submission batch size 2025-05-09 07:56:53 -06:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel mm: perform VMA allocation, freeing, duplication in mm 2025-05-12 23:50:48 -07:00
lib xarray: fix kerneldoc for __xa_cmpxchg 2025-05-12 23:50:49 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm/gup: remove unnecessary check in memfd_pin_folios() 2025-05-12 23:50:51 -07:00
net net: export a helper for adding up queue stats 2025-05-08 11:56:12 +02:00
rust task: rust: rework how current is accessed 2025-05-11 17:48:25 -07:00
samples samples/damon: implement a DAMON module for memory tiering 2025-05-12 23:50:30 -07:00
scripts scripts: Do not strip .rela.dyn section 2025-05-08 12:01:01 +00:00
security Landlock fix for v6.15-rc4 2025-04-24 12:59:05 -07:00
sound ASoC: Fixes for v6.15 2025-05-01 10:22:20 +02:00
tools mm: perform VMA allocation, freeing, duplication in mm 2025-05-12 23:50:48 -07:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap Input updates for v6.15-rc5 2025-05-11 10:29:29 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Update Christoph's Email address and make it consistent 2025-05-12 23:50:31 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS mm: perform VMA allocation, freeing, duplication in mm 2025-05-12 23:50:48 -07:00
Makefile Linux 6.15-rc6 2025-05-11 14:54:11 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.