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vold: Retry opening block device on failure when starting encryption

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The device mapper storage device node can take some time to be
created; so retry.

Bug: 23024596
Change-Id: Ieeb3b697f9cef72d4ea9d106750696901f0a224d
This commit is contained in:
David Ng 2015-01-21 13:55:21 -08:00 committed by Paul Crowley
parent 1a20a6487f
commit 82fd804f8b
1 changed files with 13 additions and 5 deletions
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18
cryptfs.c
View file

@ -2445,11 +2445,19 @@ static int cryptfs_enable_inplace_ext4(char *crypto_blkdev,
goto errout;
}
if ( (data.cryptofd = open(crypto_blkdev, O_WRONLY|O_CLOEXEC)) < 0) {
SLOGE("Error opening crypto_blkdev %s for ext4 inplace encrypt. err=%d(%s)\n",
crypto_blkdev, errno, strerror(errno));
rc = ENABLE_INPLACE_ERR_DEV;
goto errout;
// Wait until the block device appears. Re-use the mount retry values since it is reasonable.
int retries = RETRY_MOUNT_ATTEMPTS;
while ((data.cryptofd = open(crypto_blkdev, O_WRONLY|O_CLOEXEC)) < 0) {
if (--retries) {
SLOGE("Error opening crypto_blkdev %s for ext4 inplace encrypt. err=%d(%s), retrying\n",
crypto_blkdev, errno, strerror(errno));
sleep(RETRY_MOUNT_DELAY_SECONDS);
} else {
SLOGE("Error opening crypto_blkdev %s for ext4 inplace encrypt. err=%d(%s)\n",
crypto_blkdev, errno, strerror(errno));
rc = ENABLE_INPLACE_ERR_DEV;
goto errout;
}
}
if (setjmp(setjmp_env)) {