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xfs: wire up the show_stats super operation

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The show_stats option allows a file system to dump plain text statistic
on a per-mount basis into /proc/*/mountstats.  Wire up a no-op version
which will grow useful information for zoned file systems later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig
2024-11-17 06:24:19 +01:00
parent 64d0361114
commit 099bf44f9c
1 changed files with 9 additions and 0 deletions
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9
fs/xfs/xfs_super.c
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@@ -1258,6 +1258,14 @@ xfs_fs_shutdown(
xfs_force_shutdown(XFS_M(sb), SHUTDOWN_DEVICE_REMOVED);
}
static int
xfs_fs_show_stats(
struct seq_file *m,
struct dentry *root)
{
return 0;
}
static const struct super_operations xfs_super_operations = {
.alloc_inode = xfs_fs_alloc_inode,
.destroy_inode = xfs_fs_destroy_inode,
@@ -1272,6 +1280,7 @@ static const struct super_operations xfs_super_operations = {
.nr_cached_objects = xfs_fs_nr_cached_objects,
.free_cached_objects = xfs_fs_free_cached_objects,
.shutdown = xfs_fs_shutdown,
.show_stats = xfs_fs_show_stats,
};
static int