linux-kernel - [PATCH 0/2 v9] reclaim file-backed pages given POSIX_FADV

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Message-ID: <20250212023518.897942-1-jaegeuk@kernel.org>
Date: Wed, 12 Feb 2025 02:31:55 +0000
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 0/2 v9] reclaim file-backed pages given POSIX_FADV_NOREUSE

This patch series does not add new API, but implements POSIX_FADV_NOREUSE where
it keeps the page ranges in the f2fs superblock and add a way for users to
reclaim the pages manually.

Change log from v8:
 - remove new APIs, but use fadvise(POSIX_FADV_NOREUSE)

Jaegeuk Kim (2):
  f2fs: keep POSIX_FADV_NOREUSE ranges
  f2fs: add a sysfs entry to reclaim POSIX_FADV_NOREUSE pages

 Documentation/ABI/testing/sysfs-fs-f2fs |  7 ++
 fs/f2fs/debug.c                         |  3 +
 fs/f2fs/f2fs.h                          | 14 +++-
 fs/f2fs/file.c                          | 60 +++++++++++++++--
 fs/f2fs/inode.c                         | 14 ++++
 fs/f2fs/shrinker.c                      | 90 +++++++++++++++++++++++++
 fs/f2fs/super.c                         |  1 +
 fs/f2fs/sysfs.c                         | 63 +++++++++++++++++
 8 files changed, 246 insertions(+), 6 deletions(-)

-- 
2.48.1.601.g30ceb7b040-goog