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| author | Chi Zhiling <chizhiling@kylinos.cn> | 2026-05-11 17:40:07 +0800 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-05-11 15:35:03 +0200 |
| commit | ecf22101ba7a398eb1aefbb4eaba5fdddf7b08e4 (patch) | |
| tree | 9ab4aaf3db195bf43b5ac54a924e695872d3fe11 /drivers/platform/wmi/tests/git@git.tavy.me:linux.git | |
| parent | bd6a1379a41acfc38edf15e2c15aecb0694a7fba (diff) | |
iomap: add dirty page control to iomap_zero_iter
This patch prepares the iomap framework for exFAT's upcoming migration to
iomap. During testing of the exFAT iomap branch with xfstests generic/299 on
a VM with 8GB RAM and a 40GB disk, system unresponsiveness was observed.
iomap_zero_iter() lacked dirty page throttling, which could cause memory
pressure when exFAT's valid_size mechanism triggers large-scale zeroing
operations during writes beyond valid_size.
Align iomap_zero_iter() with iomap_write_iter() by adding
balance_dirty_pages_ratelimited() to throttle dirty page generation during
large zeroing operations
Signed-off-by: Chi Zhiling <chizhiling@kylinos.cn>
Link: https://patch.msgid.link/20260511094007.728011-1-chizhiling@163.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'drivers/platform/wmi/tests/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions