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Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index d3a534fdc5f..f1c65dc7cc0 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -31,6 +31,7 @@
#include <linux/percpu_counter.h>
#include <linux/ratelimit.h>
#include <crypto/hash.h>
+#include <linux/falloc.h>
#ifdef __KERNEL__
#include <linux/compat.h>
#endif
@@ -567,6 +568,8 @@ enum {
#define EXT4_GET_BLOCKS_NO_LOCK 0x0100
/* Do not put hole in extent cache */
#define EXT4_GET_BLOCKS_NO_PUT_HOLE 0x0200
+ /* Convert written extents to unwritten */
+#define EXT4_GET_BLOCKS_CONVERT_UNWRITTEN 0x0400
/*
* The bit position of these flags must not overlap with any of the
@@ -998,6 +1001,8 @@ struct ext4_inode_info {
#define EXT4_MOUNT2_STD_GROUP_SIZE 0x00000002 /* We have standard group
size of blocksize * 8
blocks */
+#define EXT4_MOUNT2_HURD_COMPAT 0x00000004 /* Support HURD-castrated
+ file systems */
#define clear_opt(sb, opt) EXT4_SB(sb)->s_mount_opt &= \
~EXT4_MOUNT_##opt
@@ -1326,6 +1331,7 @@ struct ext4_sb_info {
struct list_head s_es_lru;
unsigned long s_es_last_sorted;
struct percpu_counter s_extent_cache_cnt;
+ struct mb_cache *s_mb_cache;
spinlock_t s_es_lru_lock ____cacheline_aligned_in_smp;
/* Ratelimit ext4 messages. */
@@ -2133,8 +2139,6 @@ extern int ext4_writepage_trans_blocks(struct inode *);
extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
extern int ext4_block_truncate_page(handle_t *handle,
struct address_space *mapping, loff_t from);
-extern int ext4_block_zero_page_range(handle_t *handle,
- struct address_space *mapping, loff_t from, loff_t length);
extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
loff_t lstart, loff_t lend);
extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
@@ -2757,6 +2761,7 @@ extern int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk);
extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len);
extern int ext4_ext_precache(struct inode *inode);
+extern int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len);
/* move_extent.c */
extern void ext4_double_down_write_data_sem(struct inode *first,
@@ -2766,6 +2771,8 @@ extern void ext4_double_up_write_data_sem(struct inode *orig_inode,
extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
__u64 start_orig, __u64 start_donor,
__u64 len, __u64 *moved_len);
+extern int mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
+ struct ext4_extent **extent);
/* page-io.c */
extern int __init ext4_init_pageio(void);