linux-ext4 - [PATCH 5/8] mm: pass LLONG_MAX to truncate_inode_pages

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 29 Jun 2012 12:56:07 +0200
From:	Lukas Czerner <lczerner@...hat.com>
To:	linux-ext4@...r.kernel.org
Cc:	linux-fsdevel@...r.kernel.org, tytso@....edu,
	achender@...ux.vnet.ibm.com, Lukas Czerner <lczerner@...hat.com>,
	Hugh Dickins <hughd@...gle.com>
Subject: [PATCH 5/8] mm: pass LLONG_MAX to truncate_inode_pages_range

Currently we're passing -1 to truncate_inode_pages_range() which is
actually really confusing since the argument is signed so we do not get
"huge" number as one would expect, but rather just -1. To make things
clearer and easier for truncate_inode_pages_range() just pass LLONG_MAX
since it is actually what was intended anyway.

It also makes thing easier for allowing truncate_inode_pages_range() to
handle non page aligned regions. Moreover letting the lend argument to
be negative might actually hide some bugs.

Signed-off-by: Lukas Czerner <lczerner@...hat.com>
Cc: Hugh Dickins <hughd@...gle.com>
---
 mm/truncate.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/truncate.c b/mm/truncate.c
index 75801ac..77a693e 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -310,7 +310,7 @@ EXPORT_SYMBOL(truncate_inode_pages_range);
  */
 void truncate_inode_pages(struct address_space *mapping, loff_t lstart)
 {
-	truncate_inode_pages_range(mapping, lstart, (loff_t)-1);
+	truncate_inode_pages_range(mapping, lstart, (loff_t)LLONG_MAX);
 }
 EXPORT_SYMBOL(truncate_inode_pages);

-- 
1.7.7.6

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html