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

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Message-Id: <1340967370-13728-5-git-send-email-lczerner@redhat.com>
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

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