[PATCH 4/4] xfsprogs: Adding XFS_IOC_FIEMAPFS ioctl for use in xfs_spaceman

[Dhruvesh Rathore]

This patch is concerned with the changes to be done in userspace code for
turning FS_IOC_FIEMAPFS present in the earlier version of xfs_spaceman 
into an XFS specific ioctl called XFS_IOC_FIEMAPFS, which uses all existing
fiemap insfrastructure.
By introducing XFS_IOC_FIMEAPFS ioctl, it can be seperated from file based
fiemap commands and allows us to review it and push it as we need, making the
process much simpler.

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Signed-off-by: Dhruvesh Rathore <dhruvesh_r at outlook.com>
Signed-off-by: Amey Ruikar <ameyruikar at yahoo.com>
Signed-off-by: Somdeep Dey <somdeepdey10 at gmail.com>
---
include/xfs_fs.h	| 1 +
spaceman/freesp.c	| 6 +++---
2 files changed, 4 insertions(+), 3 deletions(-) 

--- a/include/xfs_fs.h	2015-01-29 15:26:50.954401773 +0530
+++ b/include/xfs_fs.h	2015-01-29 11:29:59.531652554 +0530

@@ -505,6 +505,7 @@
 #define XFS_IOC_DIOINFO	_IOR ('X', 30, struct dioattr)
 #define XFS_IOC_FSGETXATTR	_IOR ('X', 31, struct fsxattr)
 #define XFS_IOC_FSSETXATTR	_IOW ('X', 32, struct fsxattr)
+#define XFS_IOC_FIEMAPFS	_IOWR('X', 33, struct fiemap)
 #define XFS_IOC_ALLOCSP64	_IOW ('X', 36, struct xfs_flock64)
 #define XFS_IOC_FREESP64	_IOW ('X', 37, struct xfs_flock64)
 #define XFS_IOC_GETBMAP	_IOWR('X', 38, struct getbmap)

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--- a/spaceman/freesp.c	2015-01-29 15:27:03.737227849 +0530
+++ b/spaceman/freesp.c	2015-01-29 15:23:48.865235168 +0530

@@ -31,7 +31,7 @@
 #define FIEMAPFS_FLAG_FREESP_SIZE_HINT	0x20000000
 #define	FIEMAPFS_FLAG_FREESP_CONTINUE   0x10000000
 
-#define FS_IOC_FIEMAPFS			_IOWR('f', 12, struct fiemap)
+#define XFS_IOC_FIEMAPFS			_IOWR('X', 33, struct fiemap)
 #endif
 
 typedef struct histent
@@ -201,9 +201,9 @@
 		fiemap->fm_length = length;
 		fiemap->fm_extent_count = NR_EXTENTS;
 
-		ret = ioctl(file->fd, FS_IOC_FIEMAPFS, (unsigned long)fiemap);
+		ret = xfsctl(file->name,file->fd, XFS_IOC_FIEMAPFS, (unsigned long)fiemap);
		if (ret < 0) {
-			fprintf(stderr, "%s: ioctl(FS_IOC_FIEMAPFS) [\"%s\"]: "
+			fprintf(stderr, "%s: xfsctl(XFS_IOC_FIEMAPFS) [\"%s\"]: "
 				"%s\n", progname, file->name, strerror(errno));
 			free(fiemap);
 			exitcode = 1;

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