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fs/vfs/fs_truncate.c: Use ioctl to truncate on non-mountpoint inode

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Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
This commit is contained in:
Jukka Laitinen 2022-04-06 14:07:08 +04:00 committed by Xiang Xiao
parent 0d7ea348d5
commit dbc163f1b0
2 changed files with 17 additions and 1 deletions
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15
fs/vfs/fs_truncate.c
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@ -31,6 +31,7 @@
#include <debug.h>
#include <nuttx/fs/fs.h>
#include <nuttx/fs/ioctl.h>
#include "inode/inode.h"
@ -68,7 +69,19 @@ int file_truncate(FAR struct file *filep, off_t length)
*/
inode = filep->f_inode;
if (inode == NULL || !INODE_IS_MOUNTPT(inode) || inode->u.i_mops == NULL)
if (inode == NULL)
{
return -EINVAL;
}
/* If inode is not mountpoint try ioctl first */
if (!INODE_IS_MOUNTPT(inode))
{
return file_ioctl(filep, FIOC_TRUNCATE, length);
}
if (inode->u.i_mops == NULL)
{
fwarn("WARNING: Not a (regular) file on a mounted file system.\n");
return -EINVAL;

3
include/nuttx/fs/ioctl.h
View File

@ -182,6 +182,9 @@
* configuration
* OUT: None
*/
#define FIOC_TRUNCATE _FIOC(0x0010) /* IN: Length of the file after truncate
* OUT: None
*/
/* NuttX file system ioctl definitions **************************************/