DriverDev-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: Arnd Bergmann <arnd@arndb.de>
To: y2038@lists.linaro.org,
	Valdis Kletnieks <valdis.kletnieks@vt.edu>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org,
	Valentin Vidic <vvidic@valentin-vidic.from.hr>,
	linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 01/16] staging: exfat: use prandom_u32() for i_generation
Date: Fri,  8 Nov 2019 22:32:39 +0100
Message-ID: <20191108213257.3097633-2-arnd@arndb.de> (raw)
In-Reply-To: <20191108213257.3097633-1-arnd@arndb.de>

Similar to commit 46c9a946d766 ("shmem: use monotonic time for i_generation")
we should not use the deprecated get_seconds() interface for i_generation.

prandom_u32() is the replacement used in other file systems.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/staging/exfat/exfat_super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 3b2b0ceb7297..da76c607f589 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -26,7 +26,7 @@
 #include <linux/sched.h>
 #include <linux/fs_struct.h>
 #include <linux/namei.h>
-
+#include <linux/random.h>
 #include <linux/string.h>
 #include <linux/nls.h>
 #include <linux/mutex.h>
@@ -3314,7 +3314,7 @@ static int exfat_fill_inode(struct inode *inode, struct file_id_t *fid)
 	inode->i_uid = sbi->options.fs_uid;
 	inode->i_gid = sbi->options.fs_gid;
 	INC_IVERSION(inode);
-	inode->i_generation = get_seconds();
+	inode->i_generation = prandom_u32();
 
 	if (info.Attr & ATTR_SUBDIR) { /* directory */
 		inode->i_generation &= ~1;
-- 
2.20.0

_______________________________________________
devel mailing list
devel@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

  reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08 21:32 [PATCH 00/16] drivers: y2038 updates Arnd Bergmann
2019-11-08 21:32 ` Arnd Bergmann [this message]
2019-11-08 21:53   ` [PATCH 01/16] staging: exfat: use prandom_u32() for i_generation Valdis Klētnieks

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191108213257.3097633-2-arnd@arndb.de \
    --to=arnd@arndb.de \
    --cc=devel@driverdev.osuosl.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=valdis.kletnieks@vt.edu \
    --cc=vvidic@valentin-vidic.from.hr \
    --cc=y2038@lists.linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DriverDev-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/driverdev-devel/0 driverdev-devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 driverdev-devel driverdev-devel/ https://lore.kernel.org/driverdev-devel \
		driverdev-devel@linuxdriverproject.org devel@driverdev.osuosl.org
	public-inbox-index driverdev-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.linuxdriverproject.driverdev-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git