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writeback: hardcode dirty_expire_centisecs=3000 (30s)

Browse Source 
https://android-review.googlesource.com/c/platform/system/core/+/938362

Hardcode this and make /proc/sys/vm/dirty_expire_centisecs a no-op.

Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
(cherry picked from commit b2c3e47759aade606691d5c67f250005a0f2fe1c)
(cherry picked from commit b95894f5fa7a8f8df1d14977b04ca8f255cfa373)
(cherry picked from commit bc361a6fd917533e6bb00eb8dc313d8d88aad044)
(cherry picked from commit 89385d7e3e4f1c141667ee9756f7b916c1548830)
(cherry picked from commit faa16d5fa01d646155ac8c2e749b746eca653dc2)
(cherry picked from commit 9d0a6443278bb12df5bd36dd77ca12cca50b992f)
(cherry picked from commit 6f18d30a6241074b0f4c0a602f74e9abc35898e8)
(cherry picked from commit 3a619a8c02a6b082f6b5a40de34b3c0a6a939b5c)
(cherry picked from commit a4ede9b9dc48c513858a3b465432891b4012b182)
(cherry picked from commit 18f18de6613a63b2ff2dc657fee8e472d090dca8)
(cherry picked from commit 684b4fa2175183a7424280f270aa4a30e5c818ad)
(cherry picked from commit 417a0b93c3616a26d5c4e5272b628c6e5860c53d)
This commit is contained in:
Park Ju Hyung 2019-04-03 13:23:31 +09:00 committed by spakkkk
parent c0b3686526
commit 0752ac29bb
1 changed files with 1 additions and 2 deletions
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3
fs/fs-writeback.c
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@ -1811,8 +1811,7 @@ static long wb_writeback(struct bdi_writeback *wb,
* safe.
*/
if (work->for_kupdate) {
dirtied_before = jiffies -
msecs_to_jiffies(dirty_expire_interval * 10);
dirtied_before = jiffies - (30 * HZ);
} else if (work->for_background)
dirtied_before = jiffies;