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fs/ioctl: add BIOC_BLKGETSIZE cmd to get block sector numbers

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Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
This commit is contained in:
wanggang26 2023-08-18 09:45:22 +08:00 committed by Xiang Xiao
parent 29ddfd44a0
commit d8f316b998
3 changed files with 24 additions and 1 deletions
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16
fs/vfs/fs_ioctl.c
View File

@ -139,6 +139,22 @@ static int file_vioctl(FAR struct file *filep, int req, va_list ap)
*(FAR blksize_t *)(uintptr_t)arg = geo.geo_sectorsize;
}
}
break;
case BIOC_BLKGETSIZE:
if (ret == -ENOTTY && inode->u.i_ops != NULL &&
inode->u.i_ops->ioctl != NULL)
{
struct geometry geo;
ret = inode->u.i_ops->ioctl(filep, BIOC_GEOMETRY,
(unsigned long)(uintptr_t)&geo);
if (ret >= 0)
{
*(FAR blksize_t *)(uintptr_t)arg = geo.geo_nsectors;
}
}
break;
#endif
}

6
include/nuttx/fs/ioctl.h
View File

@ -305,6 +305,12 @@
* to return sector size.
* OUT: Data return in user-provided
* buffer. */
#define BIOC_BLKGETSIZE _BIOC(0x0010) /* Get block device sector numbers.
* IN: Pointer to writable instance
* of sector numbers in which
* to return sector numbers.
* OUT: Data return in user-provided
* buffer. */
/* NuttX MTD driver ioctl definitions ***************************************/

1
include/sys/mount.h
View File

@ -33,6 +33,7 @@
****************************************************************************/
#define BLKSSZGET BIOC_BLKSSZGET
#define BLKGETSIZE BIOC_BLKGETSIZE
/* Mount flags */