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Subject[PATCH] blkgetsize64 ioctl
Hello,

The patch below reserves an ioctl for getting the size in blocks of a
device as a long long instead of long as the old ioctl did. The patch for
this to e2fsprogs sneaked in a bit too early. There is a conflict with
the ia64 get/set sector ioctls, but I that's less common than e2fsprogs.

-ben

diff -urN /md0/kernels/2.4/v2.4.10-pre2/include/linux/fs.h work-v2.4.10-pre2/include/linux/fs.h
--- /md0/kernels/2.4/v2.4.10-pre2/include/linux/fs.h Wed Aug 29 18:28:50 2001
+++ work-v2.4.10-pre2/include/linux/fs.h Wed Aug 29 18:39:48 2001
@@ -166,7 +166,7 @@
#define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */
#define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */
#define BLKRRPART _IO(0x12,95) /* re-read partition table */
-#define BLKGETSIZE _IO(0x12,96) /* return device size */
+#define BLKGETSIZE _IO(0x12,96) /* return device size (long *arg) */
#define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */
#define BLKRASET _IO(0x12,98) /* Set read ahead for block device */
#define BLKRAGET _IO(0x12,99) /* get current read ahead setting */
@@ -182,6 +182,7 @@
/* This was here just to show that the number is taken -
probably all these _IO(0x12,*) ioctls should be moved to blkpg.h. */
#endif
+#define BLKGETSIZE64 _IO(0x12,109) /* return device size (long long *arg) */


#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
-
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