linux-ext4 - Compile error in pu branch of e2fsprogs.

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Date:	Thu, 20 Aug 2009 12:04:58 -0400
From:	Nick Dokos <nicholas.dokos@...com>
To:	Theodore Ts'o <tytso@....edu>
Cc:	nicholas.dokos@...com, linux-ext4@...r.kernel.org
Subject: Compile error in pu branch of e2fsprogs.

Hi Ted,

I got this error when trying to build the pu branch of e2fsprogs:

,----
|         ...
| 	CC ../../misc/e4defrag.c
| ../../misc/e4defrag.c:326:2: warning: #warning Using locally defined fallocate syscall interface.
| ../../misc/e4defrag.c: In function ‘file_frag_count’:
| ../../misc/e4defrag.c:627: error: ‘FS_IOC_FIEMAP’ undeclared (first use in this function)
| ../../misc/e4defrag.c:627: error: (Each undeclared identifier is reported only once
| ../../misc/e4defrag.c:627: error: for each function it appears in.)
| ../../misc/e4defrag.c: In function ‘get_file_extents’:
| ../../misc/e4defrag.c:940: error: ‘FS_IOC_FIEMAP’ undeclared (first use in this function)
| make[2]: *** [e4defrag.o] Error 1
| make[2]: Leaving directory `/home/nick/src/e2fsprogs/build/misc'
| make[1]: *** [all-progs-recursive] Error 1
| make[1]: Leaving directory `/home/nick/src/e2fsprogs/build'
| make: *** [all] Error 2
| nick@...fter:~/src/e2fsprogs/build$ uname -r
| 2.6.31-rc6
`----

Currently, the #define is in filefrag.c:

,----
| nick@...fter:~/src/e2fsprogs$ find . -type f | xargs grep FS_IOC
| ./misc/filefrag.c:#define FS_IOC_FIEMAP	_IOWR('f', 11, struct fiemap)
| ./misc/filefrag.c:		rc = ioctl(fd, FS_IOC_FIEMAP, (unsigned long) fiemap);
| ./misc/e4defrag.c:/* The following macro is used for ioctl FS_IOC_FIEMAP
| ./misc/e4defrag.c:	ret = ioctl(fd, FS_IOC_FIEMAP, &fiemap_buf);
| ./misc/e4defrag.c:		ret = ioctl(fd, FS_IOC_FIEMAP, fiemap_buf);
| ./lib/ext2fs/fiemap.h: * FS_IOC_FIEMAP ioctl infrastructure.
`----

I moved it from there to lib/ext2fs/fiemap.h and that fixes it.

Thanks,
Nick
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