Merge tag 'for-linus-20170812' of git://git.infradead.org/linux-mtd

[karo-tx-linux.git] / fs / ext4 / ext4.h

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9ebde0cd632e77b69fecd7800ed196e67b059507..a2bb7d2870e487de3f8601107cdf67c05b022034 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -961,7 +961,7 @@ struct ext4_inode_info {
        /*
         * i_block_group is the number of the block group which contains
         * this file's inode.  Constant across the lifetime of the inode,
-        * it is ued for making block allocation decisions - we try to
+        * it is used for making block allocation decisions - we try to
         * place a file's data blocks near its inode block, and new inodes
         * near to their parent directory's inode.
         */
@@ -1049,10 +1049,8 @@ struct ext4_inode_info {
        ext4_group_t    i_last_alloc_group;
 
        /* allocation reservation info for delalloc */
-       /* In case of bigalloc, these refer to clusters rather than blocks */
+       /* In case of bigalloc, this refer to clusters rather than blocks */
        unsigned int i_reserved_data_blocks;
-       unsigned int i_reserved_meta_blocks;
-       unsigned int i_allocated_meta_blocks;
        ext4_lblk_t i_da_metadata_calc_last_lblock;
        int i_da_metadata_calc_len;
 
@@ -2022,7 +2020,8 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
 
 #define is_dx(dir) (ext4_has_feature_dir_index((dir)->i_sb) && \
                    ext4_test_inode_flag((dir), EXT4_INODE_INDEX))
-#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
+#define EXT4_DIR_LINK_MAX(dir) unlikely((dir)->i_nlink >= EXT4_LINK_MAX && \
+                   !(ext4_has_feature_dir_nlink((dir)->i_sb) && is_dx(dir)))
 #define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
 
 /* Legal values for the dx_root hash_version field: */
@@ -2462,6 +2461,8 @@ extern void ext4_process_freed_data(struct super_block *sb, tid_t commit_tid);
 int ext4_inode_is_fast_symlink(struct inode *inode);
 struct buffer_head *ext4_getblk(handle_t *, struct inode *, ext4_lblk_t, int);
 struct buffer_head *ext4_bread(handle_t *, struct inode *, ext4_lblk_t, int);
+int ext4_bread_batch(struct inode *inode, ext4_lblk_t block, int bh_count,
+                    bool wait, struct buffer_head **bhs);
 int ext4_get_block_unwritten(struct inode *inode, sector_t iblock,
                             struct buffer_head *bh_result, int create);
 int ext4_get_block(struct inode *inode, sector_t iblock,
@@ -3074,7 +3075,7 @@ extern int ext4_handle_dirty_dirent_node(handle_t *handle,
                                         struct inode *inode,
                                         struct buffer_head *bh);
 #define S_SHIFT 12
-static const unsigned char ext4_type_by_mode[S_IFMT >> S_SHIFT] = {
+static const unsigned char ext4_type_by_mode[(S_IFMT >> S_SHIFT) + 1] = {
        [S_IFREG >> S_SHIFT]    = EXT4_FT_REG_FILE,
        [S_IFDIR >> S_SHIFT]    = EXT4_FT_DIR,
        [S_IFCHR >> S_SHIFT]    = EXT4_FT_CHRDEV,