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Diffstat (limited to 'fs/f2fs/f2fs.h')
-rw-r--r--fs/f2fs/f2fs.h54
1 files changed, 47 insertions, 7 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index b339ae89c1ad..ce9fc9f13000 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -55,6 +55,7 @@ enum {
FAULT_DISCARD,
FAULT_WRITE_IO,
FAULT_SLAB_ALLOC,
+ FAULT_DQUOT_INIT,
FAULT_MAX,
};
@@ -561,6 +562,9 @@ enum {
#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
+/* dirty segments threshold for triggering CP */
+#define DEFAULT_DIRTY_THRESHOLD 4
+
/* for in-memory extent cache entry */
#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
@@ -617,6 +621,7 @@ struct extent_tree {
F2FS_MAP_UNWRITTEN)
struct f2fs_map_blocks {
+ struct block_device *m_bdev; /* for multi-device dio */
block_t m_pblk;
block_t m_lblk;
unsigned int m_len;
@@ -625,6 +630,7 @@ struct f2fs_map_blocks {
pgoff_t *m_next_extent; /* point to next possible extent */
int m_seg_type;
bool m_may_create; /* indicate it is from write path */
+ bool m_multidev_dio; /* indicate it allows multi-device dio */
};
/* for flag in get_data_block */
@@ -1284,8 +1290,10 @@ enum {
};
enum {
- FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
- FS_MODE_LFS, /* use lfs allocation only */
+ FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
+ FS_MODE_LFS, /* use lfs allocation only */
+ FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
+ FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
};
enum {
@@ -1728,12 +1736,15 @@ struct f2fs_sb_info {
/* For shrinker support */
struct list_head s_list;
+ struct mutex umount_mutex;
+ unsigned int shrinker_run_no;
+
+ /* For multi devices */
int s_ndevs; /* number of devices */
struct f2fs_dev_info *devs; /* for device list */
unsigned int dirty_device; /* for checkpoint data flush */
spinlock_t dev_lock; /* protect dirty_device */
- struct mutex umount_mutex;
- unsigned int shrinker_run_no;
+ bool aligned_blksize; /* all devices has the same logical blksize */
/* For write statistics */
u64 sectors_written_start;
@@ -1756,6 +1767,9 @@ struct f2fs_sb_info {
unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
+ int max_fragment_chunk; /* max chunk size for block fragmentation mode */
+ int max_fragment_hole; /* max hole size for block fragmentation mode */
+
#ifdef CONFIG_F2FS_FS_COMPRESSION
struct kmem_cache *page_array_slab; /* page array entry */
unsigned int page_array_slab_size; /* default page array slab size */
@@ -3363,6 +3377,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
*/
int f2fs_inode_dirtied(struct inode *inode, bool sync);
void f2fs_inode_synced(struct inode *inode);
+int f2fs_dquot_initialize(struct inode *inode);
int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
int f2fs_quota_sync(struct super_block *sb, int type);
loff_t max_file_blocks(struct inode *inode);
@@ -3492,6 +3507,8 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
block_t old_blkaddr, block_t *new_blkaddr,
struct f2fs_summary *sum, int type,
struct f2fs_io_info *fio);
+void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
+ block_t blkaddr, unsigned int blkcnt);
void f2fs_wait_on_page_writeback(struct page *page,
enum page_type type, bool ordered, bool locked);
void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
@@ -3516,6 +3533,16 @@ unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
unsigned int segno);
+#define DEF_FRAGMENT_SIZE 4
+#define MIN_FRAGMENT_SIZE 1
+#define MAX_FRAGMENT_SIZE 512
+
+static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
+{
+ return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
+ F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
+}
+
/*
* checkpoint.c
*/
@@ -4027,6 +4054,8 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed,
block_t blkaddr);
bool f2fs_cluster_is_empty(struct compress_ctx *cc);
bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
+bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
+ int index, int nr_pages);
bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
int f2fs_write_multi_pages(struct compress_ctx *cc,
@@ -4152,8 +4181,7 @@ static inline bool f2fs_disable_compressed_file(struct inode *inode)
if (!f2fs_compressed_file(inode))
return true;
- if (S_ISREG(inode->i_mode) &&
- (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks)))
+ if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
return false;
fi->i_flags &= ~F2FS_COMPR_FL;
@@ -4302,6 +4330,16 @@ static inline int block_unaligned_IO(struct inode *inode,
return align & blocksize_mask;
}
+static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
+ int flag)
+{
+ if (!f2fs_is_multi_device(sbi))
+ return false;
+ if (flag != F2FS_GET_BLOCK_DIO)
+ return false;
+ return sbi->aligned_blksize;
+}
+
static inline bool f2fs_force_buffered_io(struct inode *inode,
struct kiocb *iocb, struct iov_iter *iter)
{
@@ -4310,7 +4348,9 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
if (f2fs_post_read_required(inode))
return true;
- if (f2fs_is_multi_device(sbi))
+
+ /* disallow direct IO if any of devices has unaligned blksize */
+ if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
return true;
/*
* for blkzoned device, fallback direct IO to buffered IO, so