| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 05 Jul 2013 14:22:52 +0900 From: Jaegeuk Kim <jaegeuk.kim@...sung.com> To: unlisted-recipients:; (no To-header on input) Cc: Jaegeuk Kim <jaegeuk.kim@...sung.com>, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net Subject: [PATCH] f2fs: recover date requested by fdatasync In order to support SQLite that uses fdatasync instead of fsync, we should guarantee the data requested by fdatasync can be recovered after sudden-power- off. So, let's remove the fdatasync condition in f2fs_sync_file. Otherwise, we can restore the data after sudden-power-off due to nonexistence of any fsync mark'ed node blocks. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@...sung.com> --- fs/f2fs/file.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index d2d2b7d..157a635 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -147,9 +147,10 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) mutex_lock(&inode->i_mutex); - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) - goto out; - + /* + * Both of fdatasync() and fsync() are able to be recovered from + * sudden-power-off. + */ if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1) need_cp = true; else if (file_wrong_pino(inode)) -- 1.8.3.1.437.g0dbd812 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists