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| author | Yuling Dong <yuling-dong@qq.com> | 2026-01-15 13:05:23 +0800 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2026-02-12 21:21:47 +0900 |
| commit | 0914882bdda645e10cf536b474631e1a023b67c0 (patch) | |
| tree | 382924440cb427817004f70b26af83fb154874ba /tools/perf/scripts/python/stackcollapse.py | |
| parent | 8ffe56b104c5a9cdb88e3c7b2d84fa70d8866e64 (diff) | |
| download | linux-0914882bdda645e10cf536b474631e1a023b67c0.tar.gz linux-0914882bdda645e10cf536b474631e1a023b67c0.zip | |
exfat: reduce unnecessary writes during mmap write
During mmap write, exfat_page_mkwrite() currently extends
valid_size to the end of the VMA range. For a large mapping,
this can push valid_size far beyond the page that actually
triggered the fault, resulting in unnecessary writes.
valid_size only needs to extend to the end of the page
being written.
Signed-off-by: Yuling Dong <yuling-dong@qq.com>
Reviewed-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions