e2fsprogs: fix posix_fadvise() signature mismatch

From 33245e3808058c72b66931ac14aea8d5dc6d1ba5 Mon Sep 17 00:00:00 2001

Message-Id: <33245e3808058c72b66931ac14aea8d5dc6d1ba5.1388571601.git.baruch@tkos.co.il>

From: Baruch Siach <baruch@tkos.co.il>

Date: Wed, 1 Jan 2014 08:48:17 +0200

Subject: [PATCH] e4defrag: fix build when posix_fadvise is missing

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uClibc declares posix_fadvise() even when the architecture does not provide

one. The static posix_fadvise() signature is not compatible with POSIX. Rename

the internal implementation to fix this. Fixes the following build failure

when building against uClibc:

e4defrag.c:189:2: warning: #warning Using locally defined posix_fadvise interface. [-Wcpp]

e4defrag.c:203:12: error: conflicting types for ‘posix_fadvise’

Patch status: sent upstream 

(http://marc.info/?l=linux-ext4&m=138857218522054&w=2)

Signed-off-by: Baruch Siach <baruch@tkos.co.il>

---

 misc/e4defrag.c | 3 ++-

 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/misc/e4defrag.c b/misc/e4defrag.c

index c6a5f0d..4e84a74 100644

--- a/misc/e4defrag.c

+++ b/misc/e4defrag.c

@@ -200,7 +200,8 @@ static struct frag_statistic_ino	frag_rank[SHOW_FRAG_FILES];

  * @len:		area length.

  * @advise:		process flag.

  */

-static int posix_fadvise(int fd, loff_t offset, size_t len, int advise)

+#define posix_fadvise	__posix_fadvise

+static int __posix_fadvise(int fd, loff_t offset, size_t len, int advise)

 {

 	return syscall(__NR_fadvise64_64, fd, offset, len, advise);

 }

-- 

1.8.5.2