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| author | Jens Axboe <axboe@kernel.dk> | 2025-05-27 07:28:52 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:41:06 +0200 |
| commit | 0a471b280481dd63f03801d3b122ff5f6092b981 (patch) | |
| tree | d9316eb50f4a88dbf7443231a8686e442d81c2ec /tools/perf/scripts/python/stackcollapse.py | |
| parent | 02689a8961869170600321a9de819351cc9e69be (diff) | |
mm/filemap: gate dropbehind invalidate on folio !dirty && !writeback
commit 095f627add86a6ddda2c2cfd563b0ee05d0172b2 upstream.
It's possible for the folio to either get marked for writeback or
redirtied. Add a helper, filemap_end_dropbehind(), which guards the
folio_unmap_invalidate() call behind check for the folio being both
non-dirty and not under writeback AFTER the folio lock has been
acquired. Use this helper folio_end_dropbehind_write().
Cc: stable@vger.kernel.org
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: fb7d3bc41493 ("mm/filemap: drop streaming/uncached pages when writeback completes")
Link: https://lore.kernel.org/linux-fsdevel/20250525083209.GS2023217@ZenIV/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/20250527133255.452431-2-axboe@kernel.dk
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions