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authorBrian Foster <bfoster@redhat.com>2014-07-15 08:07:01 +1000
committerDave Chinner <david@fromorbit.com>2014-07-15 08:07:01 +1000
commita31b1d3d89e40f585a1c6745b066774ee3263eb2 (patch)
tree89f547e925078ab1fb8c24136508b62deaa45915 /fs/xfs/xfs_linux.h
parent3d8712265c26546823b38eb97487262500ff13db (diff)
downloadlinux-a31b1d3d89e40f585a1c6745b066774ee3263eb2.tar.bz2
xfs: add xfs_mount sysfs kobject
Embed a base kobject into xfs_mount. This creates a kobject associated with each XFS mount and a subdirectory in sysfs with the name of the filesystem. The subdirectory lifecycle matches that of the mount. Also add the new xfs_sysfs.[c,h] source files with some XFS sysfs infrastructure to facilitate attribute creation. Note that there are currently no attributes exported as part of the xfs_mount kobject. It exists solely to serve as a per-mount container for child objects. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_linux.h')
-rw-r--r--fs/xfs/xfs_linux.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index f59b966bf903..8312771c2b5b 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -191,6 +191,17 @@ typedef __uint64_t __psunsigned_t;
#define MAX(a,b) (max(a,b))
#define howmany(x, y) (((x)+((y)-1))/(y))
+/*
+ * XFS wrapper structure for sysfs support. It depends on external data
+ * structures and is embedded in various internal data structures to implement
+ * the XFS sysfs object heirarchy. Define it here for broad access throughout
+ * the codebase.
+ */
+struct xfs_kobj {
+ struct kobject kobject;
+ struct completion complete;
+};
+
/* Kernel uid/gid conversion. These are used to convert to/from the on disk
* uid_t/gid_t types to the kuid_t/kgid_t types that the kernel uses internally.
* The conversion here is type only, the value will remain the same since we