ioctl_xfs_goingdown — shut down an XFS filesystem
Synopsis
#include <xfs/xfs_fs.h>
int ioctl(int fd, XFS_IOC_GOINGDOWN, uint32_t flags);
Description
Shuts down a live XFS filesystem. This is a software initiated hard shutdown and should be avoided whenever possible. After this call completes, the filesystem ill be totally unusable until the filesystem has been unmounted and remounted.
flags can be one of the following:
- XFS_FSOP_GOING_FLAGS_DEFAULT
Flush all dirty data and metadata to disk, flush pending transactions to the log, and shut down.
- XFS_FSOP_GOING_FLAGS_LOGFLUSH
Flush all pending metadata transactions to the log and shut down, leaving all dirty data unwritten.
- XFS_FSOP_GOING_FLAGS_NOLOGFLUSH
Shut down immediately, without writing pending transactions or dirty data to disk.
Return Value
On error, -1 is returned, and errno is set to indicate the error.
Errors
Error codes can be one of, but are not limited to, the following:
- EFSBADCRC
Metadata checksum validation failed while performing the query.
- EFSCORRUPTED
Metadata corruption was encountered while performing the query.
- EIO
An I/O error was encountered while performing the query.
- EPERM
Caller did not have permission to shut down the filesystem.
Conforming to
This API is specific to XFS filesystem on the Linux kernel.