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Commit 384926a0 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "block: Expose IOCTL to get partition start sector number"

parents e28feb3a e959c1ce

block/ioctl.c

+2 −0
Original line number Diff line number Diff line
@@ -564,6 +564,8 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, 
		if ((size >> 9) > ~0UL)

			return -EFBIG;

		return put_ulong(arg, size >> 9);

	case BLKGETSTPART:

		return put_ulong(arg, bdev->bd_part->start_sect);

	case BLKGETSIZE64:

		return put_u64(arg, i_size_read(bdev->bd_inode));

	case BLKTRACESTART:

include/uapi/linux/fs.h

+1 −0
Original line number Diff line number Diff line
@@ -226,6 +226,7 @@ struct fsxattr { 
#define BLKSECDISCARD _IO(0x12,125)

#define BLKROTATIONAL _IO(0x12,126)

#define BLKZEROOUT _IO(0x12,127)

#define BLKGETSTPART _IO(0x12, 128)



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

#define FIBMAP	   _IO(0x00,1)	/* bmap access */