#include <linux/slab.h>
#include <linux/crc32.h>
#include <linux/magic.h>
+#include <linux/kobject.h>
+#include <linux/sched.h>
/*
* For mount options
#define F2FS_MOUNT_XATTR_USER 0x00000010
#define F2FS_MOUNT_POSIX_ACL 0x00000020
#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
+#define F2FS_MOUNT_INLINE_XATTR 0x00000080
#define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
#define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
/*
* For INODE and NODE manager
*/
-#define XATTR_NODE_OFFSET (-1) /*
- * store xattrs to one node block per
- * file keeping -1 as its node offset to
- * distinguish from index node blocks.
- */
+/*
+ * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
+ * as its node offset to distinguish from index node blocks.
+ * But some bits are used to mark the node block.
+ */
+#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
+ >> OFFSET_BIT_SHIFT)
enum {
ALLOC_NODE, /* allocate a new node page if needed */
LOOKUP_NODE, /* look up a node without readahead */
f2fs_hash_t chash; /* hash value of given file name */
unsigned int clevel; /* maximum level of given file name */
nid_t i_xattr_nid; /* node id that contains xattrs */
+ unsigned long long xattr_ver; /* cp version of xattr modification */
struct extent_info ext; /* in-memory extent cache entry */
};
unsigned int ovp_segments; /* # of overprovision segments */
};
-/*
- * For directory operation
- */
-#define NODE_DIR1_BLOCK (ADDRS_PER_INODE + 1)
-#define NODE_DIR2_BLOCK (ADDRS_PER_INODE + 2)
-#define NODE_IND1_BLOCK (ADDRS_PER_INODE + 3)
-#define NODE_IND2_BLOCK (ADDRS_PER_INODE + 4)
-#define NODE_DIND_BLOCK (ADDRS_PER_INODE + 5)
-
/*
* For superblock
*/
NR_COUNT_TYPE,
};
-/*
- * Uses as sbi->fs_lock[NR_GLOBAL_LOCKS].
- * The checkpoint procedure blocks all the locks in this fs_lock array.
- * Some FS operations grab free locks, and if there is no free lock,
- * then wait to grab a lock in a round-robin manner.
- */
-#define NR_GLOBAL_LOCKS 8
-
/*
* The below are the page types of bios used in submti_bio().
* The available types are:
struct f2fs_sb_info {
struct super_block *sb; /* pointer to VFS super block */
+ struct proc_dir_entry *s_proc; /* proc entry */
struct buffer_head *raw_super_buf; /* buffer head of raw sb */
struct f2fs_super_block *raw_super; /* raw super block pointer */
int s_dirty; /* dirty flag for checkpoint */
struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
struct inode *meta_inode; /* cache meta blocks */
struct mutex cp_mutex; /* checkpoint procedure lock */
- struct mutex fs_lock[NR_GLOBAL_LOCKS]; /* blocking FS operations */
+ struct rw_semaphore cp_rwsem; /* blocking FS operations */
struct mutex node_write; /* locking node writes */
struct mutex writepages; /* mutex for writepages() */
- unsigned char next_lock_num; /* round-robin global locks */
- int por_doing; /* recovery is doing or not */
- int on_build_free_nids; /* build_free_nids is doing */
+ bool por_doing; /* recovery is doing or not */
+ bool on_build_free_nids; /* build_free_nids is doing */
+ struct task_struct *cp_task; /* checkpoint task */
/* for orphan inode management */
struct list_head orphan_inode_list; /* orphan inode list */
#endif
unsigned int last_victim[2]; /* last victim segment # */
spinlock_t stat_lock; /* lock for stat operations */
+
+ /* For sysfs suppport */
+ struct kobject s_kobj;
+ struct completion s_kobj_unregister;
};
/*
return (struct f2fs_checkpoint *)(sbi->ckpt);
}
+static inline struct f2fs_node *F2FS_NODE(struct page *page)
+{
+ return (struct f2fs_node *)page_address(page);
+}
+
static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
{
return (struct f2fs_nm_info *)(sbi->nm_info);
sbi->s_dirty = 0;
}
+static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
+{
+ return le64_to_cpu(cp->checkpoint_ver);
+}
+
static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
{
unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
cp->ckpt_flags = cpu_to_le32(ckpt_flags);
}
-static inline void mutex_lock_all(struct f2fs_sb_info *sbi)
+static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
{
- int i;
-
- for (i = 0; i < NR_GLOBAL_LOCKS; i++) {
- /*
- * This is the only time we take multiple fs_lock[]
- * instances; the order is immaterial since we
- * always hold cp_mutex, which serializes multiple
- * such operations.
- */
- mutex_lock_nest_lock(&sbi->fs_lock[i], &sbi->cp_mutex);
- }
+ down_read(&sbi->cp_rwsem);
}
-static inline void mutex_unlock_all(struct f2fs_sb_info *sbi)
+static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
{
- int i = 0;
- for (; i < NR_GLOBAL_LOCKS; i++)
- mutex_unlock(&sbi->fs_lock[i]);
+ up_read(&sbi->cp_rwsem);
}
-static inline int mutex_lock_op(struct f2fs_sb_info *sbi)
+static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
{
- unsigned char next_lock = sbi->next_lock_num % NR_GLOBAL_LOCKS;
- int i = 0;
-
- for (; i < NR_GLOBAL_LOCKS; i++)
- if (mutex_trylock(&sbi->fs_lock[i]))
- return i;
-
- mutex_lock(&sbi->fs_lock[next_lock]);
- sbi->next_lock_num++;
- return next_lock;
+ down_write_nest_lock(&sbi->cp_rwsem, &sbi->cp_mutex);
}
-static inline void mutex_unlock_op(struct f2fs_sb_info *sbi, int ilock)
+static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
{
- if (ilock < 0)
- return;
- BUG_ON(ilock >= NR_GLOBAL_LOCKS);
- mutex_unlock(&sbi->fs_lock[ilock]);
+ up_write(&sbi->cp_rwsem);
}
/*
{
block_t start_addr;
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
- unsigned long long ckpt_version = le64_to_cpu(ckpt->checkpoint_ver);
+ unsigned long long ckpt_version = cur_cp_version(ckpt);
start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, ctor);
}
+static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
+ gfp_t flags)
+{
+ void *entry;
+retry:
+ entry = kmem_cache_alloc(cachep, flags);
+ if (!entry) {
+ cond_resched();
+ goto retry;
+ }
+
+ return entry;
+}
+
#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
static inline bool IS_INODE(struct page *page)
{
- struct f2fs_node *p = (struct f2fs_node *)page_address(page);
+ struct f2fs_node *p = F2FS_NODE(page);
return RAW_IS_INODE(p);
}
{
struct f2fs_node *raw_node;
__le32 *addr_array;
- raw_node = (struct f2fs_node *)page_address(node_page);
+ raw_node = F2FS_NODE(node_page);
addr_array = blkaddr_in_node(raw_node);
return le32_to_cpu(addr_array[offset]);
}
FI_NO_ALLOC, /* should not allocate any blocks */
FI_UPDATE_DIR, /* should update inode block for consistency */
FI_DELAY_IPUT, /* used for the recovery */
+ FI_INLINE_XATTR, /* used for inline xattr */
};
static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag)
return 0;
}
+static inline void get_inline_info(struct f2fs_inode_info *fi,
+ struct f2fs_inode *ri)
+{
+ if (ri->i_inline & F2FS_INLINE_XATTR)
+ set_inode_flag(fi, FI_INLINE_XATTR);
+}
+
+static inline void set_raw_inline(struct f2fs_inode_info *fi,
+ struct f2fs_inode *ri)
+{
+ ri->i_inline = 0;
+
+ if (is_inode_flag_set(fi, FI_INLINE_XATTR))
+ ri->i_inline |= F2FS_INLINE_XATTR;
+}
+
+static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi)
+{
+ if (is_inode_flag_set(fi, FI_INLINE_XATTR))
+ return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
+ return DEF_ADDRS_PER_INODE;
+}
+
+static inline void *inline_xattr_addr(struct page *page)
+{
+ struct f2fs_inode *ri;
+ ri = (struct f2fs_inode *)page_address(page);
+ return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
+ F2FS_INLINE_XATTR_ADDRS]);
+}
+
+static inline int inline_xattr_size(struct inode *inode)
+{
+ if (is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR))
+ return F2FS_INLINE_XATTR_ADDRS << 2;
+ else
+ return 0;
+}
+
static inline int f2fs_readonly(struct super_block *sb)
{
return sb->s_flags & MS_RDONLY;
ino_t f2fs_inode_by_name(struct inode *, struct qstr *);
void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
struct page *, struct inode *);
+int update_dent_inode(struct inode *, const struct qstr *);
int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *);
void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *);
int f2fs_make_empty(struct inode *, struct inode *);
void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
int truncate_inode_blocks(struct inode *, pgoff_t);
+int truncate_xattr_node(struct inode *, struct page *);
int remove_inode_page(struct inode *);
struct page *new_inode_page(struct inode *, const struct qstr *);
struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
void allocate_new_segments(struct f2fs_sb_info *);
struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
struct bio *f2fs_bio_alloc(struct block_device *, int);
-void f2fs_submit_bio(struct f2fs_sb_info *, enum page_type, bool sync);
+void f2fs_submit_bio(struct f2fs_sb_info *, enum page_type, bool);
+void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
void write_meta_page(struct f2fs_sb_info *, struct page *);
void write_node_page(struct f2fs_sb_info *, struct page *, unsigned int,
block_t, block_t *);
struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t);
struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t);
long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
-int check_orphan_space(struct f2fs_sb_info *);
+int acquire_orphan_inode(struct f2fs_sb_info *);
+void release_orphan_inode(struct f2fs_sb_info *);
void add_orphan_inode(struct f2fs_sb_info *, nid_t);
void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
int recover_orphan_inodes(struct f2fs_sb_info *);
*/
int start_gc_thread(struct f2fs_sb_info *);
void stop_gc_thread(struct f2fs_sb_info *);
-block_t start_bidx_of_node(unsigned int);
+block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *);
int f2fs_gc(struct f2fs_sb_info *);
void build_gc_manager(struct f2fs_sb_info *);
int __init create_gc_caches(void);
unsigned base_mem, cache_mem;
};
-#define stat_inc_call_count(si) ((si)->call_count++)
+static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
+{
+ return (struct f2fs_stat_info*)sbi->stat_info;
+}
+
+#define stat_inc_call_count(si) ((si)->call_count++)
+#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
+#define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++)
+#define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--)
+#define stat_inc_hit_ext(sb) ((F2FS_SB(sb))->total_hit_ext++)
+#define stat_inc_alloc_type(sbi, curseg) \
+ ((sbi)->segment_count[(curseg)->alloc_type]++)
#define stat_inc_seg_count(sbi, type) \
do { \
- struct f2fs_stat_info *si = sbi->stat_info; \
+ struct f2fs_stat_info *si = F2FS_STAT(sbi); \
(si)->tot_segs++; \
if (type == SUM_TYPE_DATA) \
si->data_segs++; \
#define stat_inc_data_blk_count(sbi, blks) \
do { \
- struct f2fs_stat_info *si = sbi->stat_info; \
+ struct f2fs_stat_info *si = F2FS_STAT(sbi); \
stat_inc_tot_blk_count(si, blks); \
si->data_blks += (blks); \
} while (0)
#define stat_inc_node_blk_count(sbi, blks) \
do { \
- struct f2fs_stat_info *si = sbi->stat_info; \
+ struct f2fs_stat_info *si = F2FS_STAT(sbi); \
stat_inc_tot_blk_count(si, blks); \
si->node_blks += (blks); \
} while (0)
+
int f2fs_build_stats(struct f2fs_sb_info *);
void f2fs_destroy_stats(struct f2fs_sb_info *);
void __init f2fs_create_root_stats(void);
void f2fs_destroy_root_stats(void);
#else
#define stat_inc_call_count(si)
+#define stat_inc_bggc_count(si)
+#define stat_inc_dirty_dir(sbi)
+#define stat_dec_dirty_dir(sbi)
+#define stat_inc_hit_ext(sb)
+#define stat_inc_alloc_type(sbi, curseg)
#define stat_inc_seg_count(si, type)
#define stat_inc_tot_blk_count(si, blks)
#define stat_inc_data_blk_count(si, blks)
projects / karo-tx-linux.git / blobdiff