block: update some copyrights
[linux-2.6-microblaze.git] / fs / ext4 / ext4.h
index 254d1c2..65ecaf9 100644 (file)
@@ -1028,9 +1028,6 @@ struct ext4_inode_info {
                                         * protected by sbi->s_fc_lock.
                                         */
 
-       /* Fast commit subtid when this inode was committed */
-       unsigned int i_fc_committed_subtid;
-
        /* Start of lblk range that needs to be committed in this fast commit */
        ext4_lblk_t i_fc_lblk_start;
 
@@ -1166,10 +1163,6 @@ struct ext4_inode_info {
 #define        EXT4_VALID_FS                   0x0001  /* Unmounted cleanly */
 #define        EXT4_ERROR_FS                   0x0002  /* Errors detected */
 #define        EXT4_ORPHAN_FS                  0x0004  /* Orphans being recovered */
-#define EXT4_FC_INELIGIBLE             0x0008  /* Fast commit ineligible */
-#define EXT4_FC_COMMITTING             0x0010  /* File system underoing a fast
-                                                * commit.
-                                                */
 #define EXT4_FC_REPLAY                 0x0020  /* Fast commit replay ongoing */
 
 /*
@@ -1238,13 +1231,13 @@ struct ext4_inode_info {
                                                      blocks */
 #define EXT4_MOUNT2_HURD_COMPAT                0x00000004 /* Support HURD-castrated
                                                      file systems */
-#define EXT4_MOUNT2_DAX_NEVER          0x00000008 /* Do not allow Direct Access */
-#define EXT4_MOUNT2_DAX_INODE          0x00000010 /* For printing options only */
-
 #define EXT4_MOUNT2_EXPLICIT_JOURNAL_CHECKSUM  0x00000008 /* User explicitly
                                                specified journal checksum */
 
 #define EXT4_MOUNT2_JOURNAL_FAST_COMMIT        0x00000010 /* Journal fast commit */
+#define EXT4_MOUNT2_DAX_NEVER          0x00000020 /* Do not allow Direct Access */
+#define EXT4_MOUNT2_DAX_INODE          0x00000040 /* For printing options only */
+
 
 #define clear_opt(sb, opt)             EXT4_SB(sb)->s_mount_opt &= \
                                                ~EXT4_MOUNT_##opt
@@ -1426,12 +1419,6 @@ struct ext4_super_block {
 
 #ifdef __KERNEL__
 
-/*
- * run-time mount flags
- */
-#define EXT4_MF_MNTDIR_SAMPLED         0x0001
-#define EXT4_MF_FS_ABORTED             0x0002  /* Fatal error detected */
-
 #ifdef CONFIG_FS_ENCRYPTION
 #define DUMMY_ENCRYPTION_ENABLED(sbi) ((sbi)->s_dummy_enc_policy.policy != NULL)
 #else
@@ -1443,14 +1430,6 @@ struct ext4_super_block {
 
 #define EXT4_ENC_UTF8_12_1     1
 
-/*
- * Flags for ext4_sb_info.s_encoding_flags.
- */
-#define EXT4_ENC_STRICT_MODE_FL        (1 << 0)
-
-#define ext4_has_strict_mode(sbi) \
-       (sbi->s_encoding_flags & EXT4_ENC_STRICT_MODE_FL)
-
 /*
  * fourth extended-fs super-block data in memory
  */
@@ -1474,7 +1453,7 @@ struct ext4_sb_info {
        struct buffer_head * __rcu *s_group_desc;
        unsigned int s_mount_opt;
        unsigned int s_mount_opt2;
-       unsigned int s_mount_flags;
+       unsigned long s_mount_flags;
        unsigned int s_def_mount_opt;
        ext4_fsblk_t s_sb_block;
        atomic64_t s_resv_clusters;
@@ -1500,10 +1479,6 @@ struct ext4_sb_info {
        struct kobject s_kobj;
        struct completion s_kobj_unregister;
        struct super_block *s_sb;
-#ifdef CONFIG_UNICODE
-       struct unicode_map *s_encoding;
-       __u16 s_encoding_flags;
-#endif
 
        /* Journaling */
        struct journal_s *s_journal;
@@ -1706,6 +1681,34 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
        _v;                                                                \
 })
 
+/*
+ * run-time mount flags
+ */
+enum {
+       EXT4_MF_MNTDIR_SAMPLED,
+       EXT4_MF_FS_ABORTED,     /* Fatal error detected */
+       EXT4_MF_FC_INELIGIBLE,  /* Fast commit ineligible */
+       EXT4_MF_FC_COMMITTING   /* File system underoing a fast
+                                * commit.
+                                */
+};
+
+static inline void ext4_set_mount_flag(struct super_block *sb, int bit)
+{
+       set_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+static inline void ext4_clear_mount_flag(struct super_block *sb, int bit)
+{
+       clear_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+static inline int ext4_test_mount_flag(struct super_block *sb, int bit)
+{
+       return test_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+
 /*
  * Simulate_fail codes
  */
@@ -1875,6 +1878,13 @@ static inline bool ext4_verity_in_progress(struct inode *inode)
 #define EXT4_FEATURE_COMPAT_RESIZE_INODE       0x0010
 #define EXT4_FEATURE_COMPAT_DIR_INDEX          0x0020
 #define EXT4_FEATURE_COMPAT_SPARSE_SUPER2      0x0200
+/*
+ * The reason why "FAST_COMMIT" is a compat feature is that, FS becomes
+ * incompatible only if fast commit blocks are present in the FS. Since we
+ * clear the journal (and thus the fast commit blocks), we don't mark FS as
+ * incompatible. We also have a JBD2 incompat feature, which gets set when
+ * there are fast commit blocks present in the journal.
+ */
 #define EXT4_FEATURE_COMPAT_FAST_COMMIT                0x0400
 #define EXT4_FEATURE_COMPAT_STABLE_INODES      0x0800
 
@@ -2685,7 +2695,8 @@ void ext4_insert_dentry(struct inode *inode,
                        struct ext4_filename *fname);
 static inline void ext4_update_dx_flag(struct inode *inode)
 {
-       if (!ext4_has_feature_dir_index(inode->i_sb)) {
+       if (!ext4_has_feature_dir_index(inode->i_sb) &&
+           ext4_test_inode_flag(inode, EXT4_INODE_INDEX)) {
                /* ext4_iget() should have caught this... */
                WARN_ON_ONCE(ext4_has_feature_metadata_csum(inode->i_sb));
                ext4_clear_inode_flag(inode, EXT4_INODE_INDEX);
@@ -2743,12 +2754,16 @@ extern void ext4_end_bitmap_read(struct buffer_head *bh, int uptodate);
 int ext4_fc_info_show(struct seq_file *seq, void *v);
 void ext4_fc_init(struct super_block *sb, journal_t *journal);
 void ext4_fc_init_inode(struct inode *inode);
-void ext4_fc_track_range(struct inode *inode, ext4_lblk_t start,
+void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t start,
                         ext4_lblk_t end);
-void ext4_fc_track_unlink(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_link(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_create(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_inode(struct inode *inode);
+void __ext4_fc_track_unlink(handle_t *handle, struct inode *inode,
+       struct dentry *dentry);
+void __ext4_fc_track_link(handle_t *handle, struct inode *inode,
+       struct dentry *dentry);
+void ext4_fc_track_unlink(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_link(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_create(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_inode(handle_t *handle, struct inode *inode);
 void ext4_fc_mark_ineligible(struct super_block *sb, int reason);
 void ext4_fc_start_ineligible(struct super_block *sb, int reason);
 void ext4_fc_stop_ineligible(struct super_block *sb);
@@ -3464,7 +3479,7 @@ extern int ext4_handle_dirty_dirblock(handle_t *handle, struct inode *inode,
 extern int ext4_ci_compare(const struct inode *parent,
                           const struct qstr *fname,
                           const struct qstr *entry, bool quick);
-extern int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
+extern int __ext4_unlink(handle_t *handle, struct inode *dir, const struct qstr *d_name,
                         struct inode *inode);
 extern int __ext4_link(struct inode *dir, struct inode *inode,
                       struct dentry *dentry);