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authorMartin K. Petersen <martin.petersen@oracle.com>2012-01-11 16:29:31 +0100
committerJens Axboe <axboe@kernel.dk>2012-01-11 16:29:31 +0100
commitef00f59c95fe6e002e7c6e3663cdea65e253f4cc (patch)
tree8e84273162b7a743767098cc08b6c6eb2b041281 /include/linux/fs.h
parentb1bd055d397e09f99dcef9b138ed104ff1812fcb (diff)
downloadop-kernel-dev-ef00f59c95fe6e002e7c6e3663cdea65e253f4cc.zip
op-kernel-dev-ef00f59c95fe6e002e7c6e3663cdea65e253f4cc.tar.gz
block: Add BLKROTATIONAL ioctl
Introduce an ioctl which permits applications to query whether a block device is rotational. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e0bc4ff..95dd911 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -319,6 +319,7 @@ struct inodes_stat_t {
#define BLKPBSZGET _IO(0x12,123)
#define BLKDISCARDZEROES _IO(0x12,124)
#define BLKSECDISCARD _IO(0x12,125)
+#define BLKROTATIONAL _IO(0x12,126)
#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
#define FIBMAP _IO(0x00,1) /* bmap access */
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