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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | SEE ALSO | COLOPHON |
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IOCTL-XFS-FSCOUNTS(2) System Calls Manual IOCTL-XFS-FSCOUNTS(2)
ioctl_xfs_fscounts - query XFS summary counter information
#include <xfs/xfs_fs.h>
int ioctl(int fd, XFS_IOC_FSCOUNTS, struct xfs_fsop_counts *arg);
Query the raw filesystem summary counters. Unlike statvfs(3),
the values returned here are the raw values, which do not reflect
any alterations or limits set by project quotas. The counter
information is conveyed in a structure of the following form:
struct xfs_fsop_counts {
__u64 freedata;
__u64 freertx;
__u64 freeino;
__u64 allocino;
};
The fields of this structure are as follows:
freedata is the number of free filesystem blocks on the data
device.
freertx is the number of free extents on the realtime device.
freeino is the number of inode records that are not in use within
the space that has been allocated for them.
allocino is the number of inode records for which space has been
allocated.
On error, -1 is returned, and errno is set to indicate the error.
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.
EINVAL The specified allocation group number is not valid for
this filesystem.
EIO An I/O error was encountered while performing the query.
This API is specific to XFS filesystem on the Linux kernel.
ioctl(2)
This page is part of the xfsprogs (utilities for XFS filesystems)
project. Information about the project can be found at
⟨http://xfs.org/⟩. If you have a bug report for this manual page,
send it to linux-xfs@vger.kernel.org. This page was obtained
from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-05-17.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
XFS 2019-06-17 IOCTL-XFS-FSCOUNTS(2)
Pages that refer to this page: xfsctl(3)
Copyright and license for this manual page
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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