From: Sage Weil <sage@newdream.net>
To: linux-btrfs@vger.kernel.org, chris.mason@oracle.com
Cc: Sage Weil <sage@newdream.net>
Subject: [PATCH] btrfs-progs: ioctl: add may_alias to btrfs_ioctl_search_header
Date: Mon, 1 Nov 2010 09:34:20 -0700 [thread overview]
Message-ID: <1288629262-5405-1-git-send-email-sage@newdream.net> (raw)
This fixes the errors
btrfs-list.c: In function 'ino_resolve':
btrfs-list.c:506: error: dereferencing pointer 'sh' does break strict-aliasing rules
btrfs-list.c:504: error: dereferencing pointer 'sh' does break strict-aliasing rules
btrfs-list.c:502: note: initialized from here
when building with gcc version 4.4.4 (Debian 4.4.4-6).
Signed-off-by: Sage Weil <sage@newdream.net>
---
ioctl.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/ioctl.h b/ioctl.h
index 5a03317..4a850ff 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -87,7 +87,7 @@ struct btrfs_ioctl_search_header {
__u64 offset;
__u32 type;
__u32 len;
-};
+} __attribute__((__may_alias__));
#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
/*
--
1.7.0
next reply other threads:[~2010-11-01 16:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-01 16:34 Sage Weil [this message]
2010-11-01 16:34 ` [PATCH v2] btrfs-progs: btrfs: implement 'start-sync' and 'wait-sync' commands Sage Weil
2010-11-02 18:58 ` Goffredo Baroncelli
2010-11-02 21:56 ` Sage Weil
2010-11-03 6:13 ` Goffredo Baroncelli
2010-11-03 11:49 ` Hugo Mills
2010-11-01 16:34 ` [PATCH v2] btrfs-progs: btrfs: implement async option for snapshot command Sage Weil
2010-11-01 18:51 ` David Nicol
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