ocfs2: Assign feature bits and system inodes to quota feature and quota files

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/Kconfig b/fs/Kconfig
index c1ce3d8..f9b6e29 100644 (file)
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -189,6 +189,8 @@ config OCFS2_FS
        select CONFIGFS_FS
        select JBD2
        select CRC32
+       select QUOTA
+       select QUOTA_TREE
        help
          OCFS2 is a general purpose extent based shared disk cluster file
          system with many similarities to ext3. It supports 64 bit inode

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index ec3497b..ec25d99 100644 (file)
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -283,6 +283,8 @@ void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
                mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino);
        } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) {
                OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
+       } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) {
+               inode->i_flags |= S_NOQUOTA;
        } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) {
                mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino);
                /* we can't actually hit this as read_inode can't

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 5e0c0d0..06e3bd6 100644 (file)
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -94,7 +94,7 @@
                                         | OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP \
                                         | OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK \
                                         | OCFS2_FEATURE_INCOMPAT_XATTR)
-#define OCFS2_FEATURE_RO_COMPAT_SUPP   OCFS2_FEATURE_RO_COMPAT_UNWRITTEN
+#define OCFS2_FEATURE_RO_COMPAT_SUPP   (OCFS2_FEATURE_RO_COMPAT_UNWRITTEN)
 
 /*
  * Heartbeat-only devices are missing journals and other files.  The
@@ -163,6 +163,12 @@
  */
 #define OCFS2_FEATURE_RO_COMPAT_UNWRITTEN      0x0001
 
+/*
+ * Maintain quota information for this filesystem
+ */
+#define OCFS2_FEATURE_RO_COMPAT_USRQUOTA       0x0002
+#define OCFS2_FEATURE_RO_COMPAT_GRPQUOTA       0x0004
+
 /* The byte offset of the first backup block will be 1G.
  * The following will be 4G, 16G, 64G, 256G and 1T.
  */
@@ -192,6 +198,7 @@
 #define OCFS2_HEARTBEAT_FL     (0x00000200)    /* Heartbeat area */
 #define OCFS2_CHAIN_FL         (0x00000400)    /* Chain allocator */
 #define OCFS2_DEALLOC_FL       (0x00000800)    /* Truncate log */
+#define OCFS2_QUOTA_FL         (0x00001000)    /* Quota file */
 
 /*
  * Flags on ocfs2_dinode.i_dyn_features
@@ -329,13 +336,17 @@ enum {
 #define OCFS2_FIRST_ONLINE_SYSTEM_INODE SLOT_MAP_SYSTEM_INODE
        HEARTBEAT_SYSTEM_INODE,
        GLOBAL_BITMAP_SYSTEM_INODE,
-#define OCFS2_LAST_GLOBAL_SYSTEM_INODE GLOBAL_BITMAP_SYSTEM_INODE
+       USER_QUOTA_SYSTEM_INODE,
+       GROUP_QUOTA_SYSTEM_INODE,
+#define OCFS2_LAST_GLOBAL_SYSTEM_INODE GROUP_QUOTA_SYSTEM_INODE
        ORPHAN_DIR_SYSTEM_INODE,
        EXTENT_ALLOC_SYSTEM_INODE,
        INODE_ALLOC_SYSTEM_INODE,
        JOURNAL_SYSTEM_INODE,
        LOCAL_ALLOC_SYSTEM_INODE,
        TRUNCATE_LOG_SYSTEM_INODE,
+       LOCAL_USER_QUOTA_SYSTEM_INODE,
+       LOCAL_GROUP_QUOTA_SYSTEM_INODE,
        NUM_SYSTEM_INODES
 };
 
@@ -349,6 +360,8 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
        [SLOT_MAP_SYSTEM_INODE]                 = { "slot_map", 0, S_IFREG | 0644 },
        [HEARTBEAT_SYSTEM_INODE]                = { "heartbeat", OCFS2_HEARTBEAT_FL, S_IFREG | 0644 },
        [GLOBAL_BITMAP_SYSTEM_INODE]            = { "global_bitmap", 0, S_IFREG | 0644 },
+       [USER_QUOTA_SYSTEM_INODE]               = { "aquota.user", OCFS2_QUOTA_FL, S_IFREG | 0644 },
+       [GROUP_QUOTA_SYSTEM_INODE]              = { "aquota.group", OCFS2_QUOTA_FL, S_IFREG | 0644 },
 
        /* Slot-specific system inodes (one copy per slot) */
        [ORPHAN_DIR_SYSTEM_INODE]               = { "orphan_dir:%04d", 0, S_IFDIR | 0755 },
@@ -356,7 +369,9 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
        [INODE_ALLOC_SYSTEM_INODE]              = { "inode_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_CHAIN_FL, S_IFREG | 0644 },
        [JOURNAL_SYSTEM_INODE]                  = { "journal:%04d", OCFS2_JOURNAL_FL, S_IFREG | 0644 },
        [LOCAL_ALLOC_SYSTEM_INODE]              = { "local_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_LOCAL_ALLOC_FL, S_IFREG | 0644 },
-       [TRUNCATE_LOG_SYSTEM_INODE]             = { "truncate_log:%04d", OCFS2_DEALLOC_FL, S_IFREG | 0644 }
+       [TRUNCATE_LOG_SYSTEM_INODE]             = { "truncate_log:%04d", OCFS2_DEALLOC_FL, S_IFREG | 0644 },
+       [LOCAL_USER_QUOTA_SYSTEM_INODE]         = { "aquota.user:%04d", OCFS2_QUOTA_FL, S_IFREG | 0644 },
+       [LOCAL_GROUP_QUOTA_SYSTEM_INODE]        = { "aquota.group:%04d", OCFS2_QUOTA_FL, S_IFREG | 0644 },
 };
 
 /* Parameter passed from mount.ocfs2 to module */

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 9e7accc..41bb019 100644 (file)
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -225,6 +225,19 @@ static int ocfs2_sync_fs(struct super_block *sb, int wait)
        return 0;
 }
 
+static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino)
+{
+       if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)
+           && (ino == USER_QUOTA_SYSTEM_INODE
+               || ino == LOCAL_USER_QUOTA_SYSTEM_INODE))
+               return 0;
+       if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)
+           && (ino == GROUP_QUOTA_SYSTEM_INODE
+               || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE))
+               return 0;
+       return 1;
+}
+
 static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
 {
        struct inode *new = NULL;
@@ -251,6 +264,8 @@ static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
 
        for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE;
             i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) {
+               if (!ocfs2_need_system_inode(osb, i))
+                       continue;
                new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);
                if (!new) {
                        ocfs2_release_system_inodes(osb);
@@ -281,6 +296,8 @@ static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb)
        for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1;
             i < NUM_SYSTEM_INODES;
             i++) {
+               if (!ocfs2_need_system_inode(osb, i))
+                       continue;
                new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);
                if (!new) {
                        ocfs2_release_system_inodes(osb);