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authorTristan Ye <tristan.ye@oracle.com>2011-05-24 15:25:54 +0800
committerTristan Ye <tristan.ye@oracle.com>2011-05-25 12:18:02 +0800
commit3e5db17d4da7f45c454940096d9e429cca12ef9f (patch)
treee808424de357b1140817341675b8624292c6c7b2 /fs/ocfs2/ocfs2_ioctl.h
parent8aa1fa360d0e2b31891f180d8b8e0f8d38f9243c (diff)
Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl.
The new code is dedicated to calculate free inodes number of all inode_allocs, then return the info to userpace in terms of an array. Specially, flag 'OCFS2_INFO_FL_NON_COHERENT', manipulated by '--cluster-coherent' from userspace, is now going to be involved. setting the flag on means no cluster coherency considered, usually, userspace tools choose none-coherency strategy by default for the sake of performace. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
Diffstat (limited to 'fs/ocfs2/ocfs2_ioctl.h')
-rw-r--r--fs/ocfs2/ocfs2_ioctl.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_ioctl.h b/fs/ocfs2/ocfs2_ioctl.h
index b46f39bf7438..6b4b39a83662 100644
--- a/fs/ocfs2/ocfs2_ioctl.h
+++ b/fs/ocfs2/ocfs2_ioctl.h
@@ -142,6 +142,16 @@ struct ocfs2_info_journal_size {
__u64 ij_journal_size;
};
+struct ocfs2_info_freeinode {
+ struct ocfs2_info_request ifi_req;
+ struct ocfs2_info_local_freeinode {
+ __u64 lfi_total;
+ __u64 lfi_free;
+ } ifi_stat[OCFS2_MAX_SLOTS];
+ __u32 ifi_slotnum; /* out */
+ __u32 ifi_pad;
+};
+
/* Codes for ocfs2_info_request */
enum ocfs2_info_type {
OCFS2_INFO_CLUSTERSIZE = 1,
@@ -151,6 +161,7 @@ enum ocfs2_info_type {
OCFS2_INFO_UUID,
OCFS2_INFO_FS_FEATURES,
OCFS2_INFO_JOURNAL_SIZE,
+ OCFS2_INFO_FREEINODE,
OCFS2_INFO_NUM_TYPES
};