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(modify and resend) Trigger sync right after writing.

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This can trigger the sync mechanism earlier so that the kernel has enough
time to schedule a real disk sync before system reboots.

We sent this in CL 41269, however it is reverted because the sync() and
syncfs() make test cases timeout (tons of disk access). So we only sync
file itself in this CL and leave the whoe system sync outside cgpt.

BUG=chromium-os:35992
TEST=make && make runtests ; and trybot
BRANCH=none

Change-Id: I9c6b602220131f1f011e7865788a122d4c379e73
Reviewed-on: https://gerrit.chromium.org/gerrit/41345
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Yung-Chieh Lo <yjlou@chromium.org>
Tested-by: Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This commit is contained in:
Louis Yung-Chieh Lo
2013-01-16 11:52:17 +08:00
committed by ChromeBot
parent 96d16de52e
commit 57cdad33d6
1 changed files with 5 additions and 0 deletions
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5
cgpt/cgpt_common.c
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@@ -269,6 +269,11 @@ int DriveClose(struct drive *drive, int update_as_needed) {
}
}
// Sync early! Only sync file descriptor here, and leave the whole system sync
// outside cgpt because whole system sync would trigger tons of disk accesses
// and timeout tests.
fsync(drive->fd);
close(drive->fd);
if (drive->gpt.primary_header)