Default number is 6.
disable_ext_identify Disable the extension list configured by mkfs, so f2fs
does not aware of cold files such as media files.
+inline_xattr Enable the inline xattrs feature.
================================================================================
DEBUGFS ENTRIES
gc_idle = 1 will select the Cost Benefit approach
& setting gc_idle = 2 will select the greedy aproach.
+ reclaim_segments This parameter controls the number of prefree
+ segments to be reclaimed. If the number of prefree
+ segments is larger than this number, f2fs tries to
+ conduct checkpoint to reclaim the prefree segments
+ to free segments. By default, 100 segments, 200MB.
+
================================================================================
USAGE
================================================================================
the extended attribute support in advance.
If you are not using a security module, say N.
+
+config F2FS_CHECK_FS
+ bool "F2FS consistency checking feature"
+ depends on F2FS_FS
+ help
+ Enables BUG_ONs which check the file system consistency in runtime.
+
+ If you want to improve the performance, say N.
return acl;
}
-static int f2fs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+static int f2fs_set_acl(struct inode *inode, int type,
+ struct posix_acl *acl, struct page *ipage)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct f2fs_inode_info *fi = F2FS_I(inode);
}
}
- error = f2fs_setxattr(inode, name_index, "", value, size, NULL);
+ error = f2fs_setxattr(inode, name_index, "", value, size, ipage);
kfree(value);
if (!error)
return error;
}
-int f2fs_init_acl(struct inode *inode, struct inode *dir)
+int f2fs_init_acl(struct inode *inode, struct inode *dir, struct page *ipage)
{
- struct posix_acl *acl = NULL;
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+ struct posix_acl *acl = NULL;
int error = 0;
if (!S_ISLNK(inode->i_mode)) {
inode->i_mode &= ~current_umask();
}
- if (test_opt(sbi, POSIX_ACL) && acl) {
+ if (!test_opt(sbi, POSIX_ACL) || !acl)
+ goto cleanup;
- if (S_ISDIR(inode->i_mode)) {
- error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
- if (error)
- goto cleanup;
- }
- error = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode);
- if (error < 0)
- return error;
- if (error > 0)
- error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+ if (S_ISDIR(inode->i_mode)) {
+ error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl, ipage);
+ if (error)
+ goto cleanup;
}
+ error = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode);
+ if (error < 0)
+ return error;
+ if (error > 0)
+ error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl, ipage);
cleanup:
posix_acl_release(acl);
return error;
error = posix_acl_chmod(&acl, GFP_KERNEL, mode);
if (error)
return error;
- error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+
+ error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl, NULL);
posix_acl_release(acl);
return error;
}
acl = NULL;
}
- error = f2fs_set_acl(inode, type, acl);
+ error = f2fs_set_acl(inode, type, acl, NULL);
release_and_out:
posix_acl_release(acl);
#ifdef CONFIG_F2FS_FS_POSIX_ACL
-extern struct posix_acl *f2fs_get_acl(struct inode *inode, int type);
-extern int f2fs_acl_chmod(struct inode *inode);
-extern int f2fs_init_acl(struct inode *inode, struct inode *dir);
+extern struct posix_acl *f2fs_get_acl(struct inode *, int);
+extern int f2fs_acl_chmod(struct inode *);
+extern int f2fs_init_acl(struct inode *, struct inode *, struct page *);
#else
#define f2fs_check_acl NULL
#define f2fs_get_acl NULL
return 0;
}
-static inline int f2fs_init_acl(struct inode *inode, struct inode *dir)
+static inline int f2fs_init_acl(struct inode *inode, struct inode *dir,
+ struct page *page)
{
return 0;
}
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
/* Should not write any meta pages, if any IO error was occurred */
- if (wbc->for_reclaim ||
+ if (wbc->for_reclaim || sbi->por_doing ||
is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)) {
dec_page_count(sbi, F2FS_DIRTY_META);
wbc->pages_skipped++;
for (i = 0; i < nr_pages; i++) {
struct page *page = pvec.pages[i];
lock_page(page);
- BUG_ON(page->mapping != mapping);
- BUG_ON(!PageDirty(page));
+ f2fs_bug_on(page->mapping != mapping);
+ f2fs_bug_on(!PageDirty(page));
clear_page_dirty_for_io(page);
if (f2fs_write_meta_page(page, &wbc)) {
unlock_page(page);
struct address_space *mapping = page->mapping;
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
+ trace_f2fs_set_page_dirty(page, META);
+
SetPageUptodate(page);
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
void release_orphan_inode(struct f2fs_sb_info *sbi)
{
mutex_lock(&sbi->orphan_inode_mutex);
+ f2fs_bug_on(sbi->n_orphans == 0);
sbi->n_orphans--;
mutex_unlock(&sbi->orphan_inode_mutex);
}
break;
orphan = NULL;
}
-retry:
- new = kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
- if (!new) {
- cond_resched();
- goto retry;
- }
+
+ new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
new->ino = ino;
/* add new_oentry into list which is sorted by inode number */
if (orphan->ino == ino) {
list_del(&orphan->list);
kmem_cache_free(orphan_entry_slab, orphan);
+ f2fs_bug_on(sbi->n_orphans == 0);
sbi->n_orphans--;
break;
}
static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
{
struct inode *inode = f2fs_iget(sbi->sb, ino);
- BUG_ON(IS_ERR(inode));
+ f2fs_bug_on(IS_ERR(inode));
clear_nlink(inode);
/* truncate all the data during iput */
if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG))
return 0;
- sbi->por_doing = 1;
+ sbi->por_doing = true;
start_blk = __start_cp_addr(sbi) + 1;
orphan_blkaddr = __start_sum_addr(sbi) - 1;
}
/* clear Orphan Flag */
clear_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG);
- sbi->por_doing = 0;
+ sbi->por_doing = false;
return 0;
}
return -EEXIST;
}
list_add_tail(&new->list, head);
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->n_dirty_dirs++;
-#endif
+ stat_inc_dirty_dir(sbi);
return 0;
}
if (!S_ISDIR(inode->i_mode))
return;
-retry:
- new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
- if (!new) {
- cond_resched();
- goto retry;
- }
+
+ new = f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
new->inode = inode;
INIT_LIST_HEAD(&new->list);
void add_dirty_dir_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- struct dir_inode_entry *new;
-retry:
- new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
- if (!new) {
- cond_resched();
- goto retry;
- }
+ struct dir_inode_entry *new =
+ f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
+
new->inode = inode;
INIT_LIST_HEAD(&new->list);
if (entry->inode == inode) {
list_del(&entry->list);
kmem_cache_free(inode_entry_slab, entry);
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->n_dirty_dirs--;
-#endif
+ stat_dec_dirty_dir(sbi);
break;
}
}
blk_start_plug(&plug);
retry_flush_dents:
- mutex_lock_all(sbi);
-
+ f2fs_lock_all(sbi);
/* write all the dirty dentry pages */
if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
- mutex_unlock_all(sbi);
+ f2fs_unlock_all(sbi);
sync_dirty_dir_inodes(sbi);
goto retry_flush_dents;
}
static void unblock_operations(struct f2fs_sb_info *sbi)
{
mutex_unlock(&sbi->node_write);
- mutex_unlock_all(sbi);
+ f2fs_unlock_all(sbi);
+}
+
+static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
+{
+ DEFINE_WAIT(wait);
+
+ for (;;) {
+ prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE);
+
+ if (!get_pages(sbi, F2FS_WRITEBACK))
+ break;
+
+ io_schedule();
+ }
+ finish_wait(&sbi->cp_wait, &wait);
}
static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
f2fs_put_page(cp_page, 1);
/* wait for previous submitted node/meta pages writeback */
- while (get_pages(sbi, F2FS_WRITEBACK))
- congestion_wait(BLK_RW_ASYNC, HZ / 50);
+ wait_on_all_pages_writeback(sbi);
filemap_fdatawait_range(sbi->node_inode->i_mapping, 0, LONG_MAX);
filemap_fdatawait_range(sbi->meta_inode->i_mapping, 0, LONG_MAX);
struct buffer_head *bh_result)
{
struct f2fs_inode_info *fi = F2FS_I(inode);
-#ifdef CONFIG_F2FS_STAT_FS
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-#endif
pgoff_t start_fofs, end_fofs;
block_t start_blkaddr;
return 0;
}
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->total_hit_ext++;
-#endif
+ stat_inc_total_hit(inode->i_sb);
+
start_fofs = fi->ext.fofs;
end_fofs = fi->ext.fofs + fi->ext.len - 1;
start_blkaddr = fi->ext.blk_addr;
else
bh_result->b_size = UINT_MAX;
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->read_hit_ext++;
-#endif
+ stat_inc_read_hit(inode->i_sb);
read_unlock(&fi->ext.ext_lock);
return 1;
}
pgoff_t fofs, start_fofs, end_fofs;
block_t start_blkaddr, end_blkaddr;
- BUG_ON(blk_addr == NEW_ADDR);
+ f2fs_bug_on(blk_addr == NEW_ADDR);
fofs = start_bidx_of_node(ofs_of_node(dn->node_page), fi) +
dn->ofs_in_node;
}
/* It does not support data allocation */
- BUG_ON(create);
+ f2fs_bug_on(create);
if (dn.data_blkaddr != NEW_ADDR && dn.data_blkaddr != NULL_ADDR) {
int i;
inode_dec_dirty_dents(inode);
err = do_write_data_page(page);
} else {
- int ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = do_write_data_page(page);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
need_balance_fs = true;
}
if (err == -ENOENT)
pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
struct dnode_of_data dn;
int err = 0;
- int ilock;
f2fs_balance_fs(sbi);
repeat:
return -ENOMEM;
*pagep = page;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, index, ALLOC_NODE);
if (err)
goto err;
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))
return 0;
return 0;
err:
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
f2fs_put_page(page, 1);
return err;
}
struct address_space *mapping = page->mapping;
struct inode *inode = mapping->host;
+ trace_f2fs_set_page_dirty(page, DATA);
+
SetPageUptodate(page);
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
bool room = false;
int max_slots = 0;
- BUG_ON(level > MAX_DIR_HASH_DEPTH);
+ f2fs_bug_on(level > MAX_DIR_HASH_DEPTH);
nbucket = dir_buckets(level);
nblock = bucket_blocks(level);
goto error;
}
- err = f2fs_init_acl(inode, dir);
+ err = f2fs_init_acl(inode, dir, page);
if (err)
goto error;
#include <linux/crc32.h>
#include <linux/magic.h>
#include <linux/kobject.h>
+#include <linux/sched.h>
+
+#ifdef CONFIG_F2FS_CHECK_FS
+#define f2fs_bug_on(condition) BUG_ON(condition)
+#else
+#define f2fs_bug_on(condition)
+#endif
/*
* For mount options
unsigned int main_segments; /* # of segments in main area */
unsigned int reserved_segments; /* # of reserved segments */
unsigned int ovp_segments; /* # of overprovision segments */
+
+ /* a threshold to reclaim prefree segments */
+ unsigned int rec_prefree_segments;
};
/*
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_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 */
+ wait_queue_head_t cp_wait;
/* for orphan inode management */
struct list_head orphan_inode_list; /* orphan inode list */
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);
}
/*
blkcnt_t count)
{
spin_lock(&sbi->stat_lock);
- BUG_ON(sbi->total_valid_block_count < (block_t) count);
- BUG_ON(inode->i_blocks < count);
+ f2fs_bug_on(sbi->total_valid_block_count < (block_t) count);
+ f2fs_bug_on(inode->i_blocks < count);
inode->i_blocks -= count;
sbi->total_valid_block_count -= (block_t)count;
spin_unlock(&sbi->stat_lock);
{
spin_lock(&sbi->stat_lock);
- BUG_ON(sbi->total_valid_block_count < count);
- BUG_ON(sbi->total_valid_node_count < count);
- BUG_ON(inode->i_blocks < count);
+ f2fs_bug_on(sbi->total_valid_block_count < count);
+ f2fs_bug_on(sbi->total_valid_node_count < count);
+ f2fs_bug_on(inode->i_blocks < count);
inode->i_blocks -= count;
sbi->total_valid_node_count -= count;
static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
{
spin_lock(&sbi->stat_lock);
- BUG_ON(sbi->total_valid_inode_count == sbi->total_node_count);
+ f2fs_bug_on(sbi->total_valid_inode_count == sbi->total_node_count);
sbi->total_valid_inode_count++;
spin_unlock(&sbi->stat_lock);
}
static inline int dec_valid_inode_count(struct f2fs_sb_info *sbi)
{
spin_lock(&sbi->stat_lock);
- BUG_ON(!sbi->total_valid_inode_count);
+ f2fs_bug_on(!sbi->total_valid_inode_count);
sbi->total_valid_inode_count--;
spin_unlock(&sbi->stat_lock);
return 0;
return;
if (unlock) {
- BUG_ON(!PageLocked(page));
+ f2fs_bug_on(!PageLocked(page));
unlock_page(page);
}
page_cache_release(page);
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)
*/
void f2fs_set_inode_flags(struct inode *);
struct inode *f2fs_iget(struct super_block *, unsigned long);
+int try_to_free_nats(struct f2fs_sb_info *, int);
void update_inode(struct inode *, struct page *);
int update_inode_page(struct inode *);
int f2fs_write_inode(struct inode *, struct writeback_control *);
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 wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
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 *);
* segment.c
*/
void f2fs_balance_fs(struct f2fs_sb_info *);
+void f2fs_balance_fs_bg(struct f2fs_sb_info *);
void invalidate_blocks(struct f2fs_sb_info *, block_t);
void clear_prefree_segments(struct f2fs_sb_info *);
int npages_for_summary_flush(struct f2fs_sb_info *);
return (struct f2fs_stat_info*)sbi->stat_info;
}
-#define stat_inc_call_count(si) ((si)->call_count++)
+#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_total_hit(sb) ((F2FS_SB(sb))->total_hit_ext++)
+#define stat_inc_read_hit(sb) ((F2FS_SB(sb))->read_hit_ext++)
+#define stat_inc_seg_type(sbi, curseg) \
+ ((sbi)->segment_count[(curseg)->alloc_type]++)
+#define stat_inc_block_count(sbi, curseg) \
+ ((sbi)->block_count[(curseg)->alloc_type]++)
#define stat_inc_seg_count(sbi, type) \
do { \
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_total_hit(sb)
+#define stat_inc_read_hit(sb)
+#define stat_inc_seg_type(sbi, curseg)
+#define stat_inc_block_count(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)
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
block_t old_blk_addr;
struct dnode_of_data dn;
- int err, ilock;
+ int err;
f2fs_balance_fs(sbi);
sb_start_pagefault(inode->i_sb);
/* block allocation */
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, page->index, ALLOC_NODE);
if (err) {
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
goto out;
}
err = reserve_new_block(&dn);
if (err) {
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
goto out;
}
}
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
file_update_time(vma->vm_file);
lock_page(page);
set_page_dirty(page);
SetPageUptodate(page);
+ trace_f2fs_vm_page_mkwrite(page, DATA);
mapped:
/* fill the page */
wait_on_page_writeback(page);
if (ret)
goto out;
}
- filemap_fdatawait_range(sbi->node_inode->i_mapping,
- 0, LONG_MAX);
+ ret = wait_on_node_pages_writeback(sbi, inode->i_ino);
+ if (ret)
+ goto out;
ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
}
out:
unsigned int blocksize = inode->i_sb->s_blocksize;
struct dnode_of_data dn;
pgoff_t free_from;
- int count = 0, ilock = -1;
+ int count = 0;
int err;
trace_f2fs_truncate_blocks_enter(inode, from);
free_from = (pgoff_t)
((from + blocksize - 1) >> (sbi->log_blocksize));
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);
if (err) {
if (err == -ENOENT)
goto free_next;
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
trace_f2fs_truncate_blocks_exit(inode, err);
return err;
}
count = ADDRS_PER_BLOCK;
count -= dn.ofs_in_node;
- BUG_ON(count < 0);
+ f2fs_bug_on(count < 0);
if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
truncate_data_blocks_range(&dn, count);
f2fs_put_dnode(&dn);
free_next:
err = truncate_inode_blocks(inode, free_from);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
/* lastly zero out the first data page */
truncate_partial_data_page(inode, from);
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct page *page;
- int ilock;
if (!len)
return;
f2fs_balance_fs(sbi);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
page = get_new_data_page(inode, NULL, index, false);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (!IS_ERR(page)) {
wait_on_page_writeback(page);
struct address_space *mapping = inode->i_mapping;
loff_t blk_start, blk_end;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- int ilock;
f2fs_balance_fs(sbi);
truncate_inode_pages_range(mapping, blk_start,
blk_end - 1);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
ret = truncate_hole(inode, pg_start, pg_end);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
}
}
for (index = pg_start; index <= pg_end; index++) {
struct dnode_of_data dn;
- int ilock;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
if (ret) {
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
break;
}
ret = reserve_new_block(&dn);
if (ret) {
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
break;
}
}
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (pg_start == pg_end)
new_size = offset + len;
else
wait_ms = increase_sleep_time(gc_th, wait_ms);
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->bg_gc++;
-#endif
+ stat_inc_bggc_count(sbi);
/* if return value is not zero, no victim was selected */
if (f2fs_gc(sbi))
wait_ms = gc_th->no_gc_sleep_time;
+
+ /* balancing f2fs's metadata periodically */
+ f2fs_balance_fs_bg(sbi);
+
} while (!kthread_should_stop());
return 0;
}
return UINT_MAX - ((100 * (100 - u) * age) / (100 + u));
}
-static unsigned int get_gc_cost(struct f2fs_sb_info *sbi, unsigned int segno,
- struct victim_sel_policy *p)
+static inline unsigned int get_gc_cost(struct f2fs_sb_info *sbi,
+ unsigned int segno, struct victim_sel_policy *p)
{
if (p->alloc_mode == SSR)
return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
}
break;
}
- p.offset = ((segno / p.ofs_unit) * p.ofs_unit) + p.ofs_unit;
+
+ p.offset = segno + p.ofs_unit;
+ if (p.ofs_unit > 1)
+ p.offset -= segno % p.ofs_unit;
+
secno = GET_SECNO(sbi, segno);
if (sec_usage_check(sbi, secno))
if (p.min_cost > cost) {
p.min_segno = segno;
p.min_cost = cost;
- }
-
- if (cost == max_cost)
+ } else if (unlikely(cost == max_cost)) {
continue;
+ }
if (nsearched++ >= p.max_search) {
sbi->last_victim[p.gc_mode] = segno;
iput(inode);
return;
}
-repeat:
- new_ie = kmem_cache_alloc(winode_slab, GFP_NOFS);
- if (!new_ie) {
- cond_resched();
- goto repeat;
- }
+
+ new_ie = f2fs_kmem_cache_alloc(winode_slab, GFP_NOFS);
new_ie->inode = inode;
list_add_tail(&new_ie->list, ilist);
}
inode->i_flags |= S_DIRSYNC;
}
+static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+ S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
+ if (ri->i_addr[0])
+ inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
+ else
+ inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
+ }
+}
+
+static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+ if (old_valid_dev(inode->i_rdev)) {
+ ri->i_addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
+ ri->i_addr[1] = 0;
+ } else {
+ ri->i_addr[0] = 0;
+ ri->i_addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
+ ri->i_addr[2] = 0;
+ }
+ }
+}
+
static int do_read_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
inode->i_generation = le32_to_cpu(ri->i_generation);
- if (ri->i_addr[0])
- inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
- else
- inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
fi->flags = 0;
fi->i_advise = ri->i_advise;
fi->i_pino = le32_to_cpu(ri->i_pino);
+
get_extent_info(&fi->ext, ri->i_ext);
get_inline_info(fi, ri);
+
+ /* get rdev by using inline_info */
+ __get_inode_rdev(inode, ri);
+
f2fs_put_page(node_page, 1);
return 0;
}
ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
ri->i_generation = cpu_to_le32(inode->i_generation);
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
- if (old_valid_dev(inode->i_rdev)) {
- ri->i_addr[0] =
- cpu_to_le32(old_encode_dev(inode->i_rdev));
- ri->i_addr[1] = 0;
- } else {
- ri->i_addr[0] = 0;
- ri->i_addr[1] =
- cpu_to_le32(new_encode_dev(inode->i_rdev));
- ri->i_addr[2] = 0;
- }
- }
-
+ __set_inode_rdev(inode, ri);
set_cold_node(inode, node_page);
set_page_dirty(node_page);
+
clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
}
int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- int ret, ilock;
+ int ret;
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
inode->i_ino == F2FS_META_INO(sbi))
* We need to lock here to prevent from producing dirty node pages
* during the urgent cleaning time when runing out of free sections.
*/
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
ret = update_inode_page(inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (wbc)
f2fs_balance_fs(sbi);
void f2fs_evict_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- int ilock;
trace_f2fs_evict_inode(inode);
truncate_inode_pages(&inode->i_data, 0);
inode->i_ino == F2FS_META_INO(sbi))
goto no_delete;
- BUG_ON(atomic_read(&F2FS_I(inode)->dirty_dents));
+ f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents));
remove_dirty_dir_inode(inode);
if (inode->i_nlink || is_bad_inode(inode))
if (F2FS_HAS_BLOCKS(inode))
f2fs_truncate(inode);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
remove_inode_page(inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
sb_end_intwrite(inode->i_sb);
no_delete:
nid_t ino;
struct inode *inode;
bool nid_free = false;
- int err, ilock;
+ int err;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
if (!alloc_nid(sbi, &ino)) {
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
err = -ENOSPC;
goto fail;
}
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
inode->i_uid = current_fsuid();
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
nid_t ino = 0;
- int err, ilock;
+ int err;
f2fs_balance_fs(sbi);
inode->i_mapping->a_ops = &f2fs_dblock_aops;
ino = inode->i_ino;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (err)
goto out;
struct inode *inode = old_dentry->d_inode;
struct super_block *sb = dir->i_sb;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int err, ilock;
+ int err;
f2fs_balance_fs(sbi);
ihold(inode);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (err)
goto out;
struct f2fs_dir_entry *de;
struct page *page;
int err = -ENOENT;
- int ilock;
trace_f2fs_unlink_enter(dir, dentry);
f2fs_balance_fs(sbi);
if (!de)
goto fail;
+ f2fs_lock_op(sbi);
err = acquire_orphan_inode(sbi);
if (err) {
+ f2fs_unlock_op(sbi);
kunmap(page);
f2fs_put_page(page, 0);
goto fail;
}
-
- ilock = mutex_lock_op(sbi);
f2fs_delete_entry(de, page, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
/* In order to evict this inode, we set it dirty */
mark_inode_dirty(inode);
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
size_t symlen = strlen(symname) + 1;
- int err, ilock;
+ int err;
f2fs_balance_fs(sbi);
inode->i_op = &f2fs_symlink_inode_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (err)
goto out;
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct inode *inode;
- int err, ilock;
+ int err;
f2fs_balance_fs(sbi);
mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (err)
goto out_fail;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
int err = 0;
- int ilock;
if (!new_valid_dev(rdev))
return -EINVAL;
init_special_inode(inode, inode->i_mode, rdev);
inode->i_op = &f2fs_special_inode_operations;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
if (err)
goto out;
struct f2fs_dir_entry *old_dir_entry = NULL;
struct f2fs_dir_entry *old_entry;
struct f2fs_dir_entry *new_entry;
- int err = -ENOENT, ilock = -1;
+ int err = -ENOENT;
f2fs_balance_fs(sbi);
goto out_old;
}
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
if (new_inode) {
update_inode_page(old_dir);
}
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
return 0;
put_out_dir:
kunmap(old_dir_page);
f2fs_put_page(old_dir_page, 0);
}
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
out_old:
kunmap(old_page);
f2fs_put_page(old_page, 0);
}
e->ni = *ni;
e->checkpointed = true;
- BUG_ON(ni->blk_addr == NEW_ADDR);
+ f2fs_bug_on(ni->blk_addr == NEW_ADDR);
} else if (new_blkaddr == NEW_ADDR) {
/*
* when nid is reallocated,
* So, reinitialize it with new information.
*/
e->ni = *ni;
- BUG_ON(ni->blk_addr != NULL_ADDR);
+ f2fs_bug_on(ni->blk_addr != NULL_ADDR);
}
if (new_blkaddr == NEW_ADDR)
e->checkpointed = false;
/* sanity check */
- BUG_ON(nat_get_blkaddr(e) != ni->blk_addr);
- BUG_ON(nat_get_blkaddr(e) == NULL_ADDR &&
+ f2fs_bug_on(nat_get_blkaddr(e) != ni->blk_addr);
+ f2fs_bug_on(nat_get_blkaddr(e) == NULL_ADDR &&
new_blkaddr == NULL_ADDR);
- BUG_ON(nat_get_blkaddr(e) == NEW_ADDR &&
+ f2fs_bug_on(nat_get_blkaddr(e) == NEW_ADDR &&
new_blkaddr == NEW_ADDR);
- BUG_ON(nat_get_blkaddr(e) != NEW_ADDR &&
+ f2fs_bug_on(nat_get_blkaddr(e) != NEW_ADDR &&
nat_get_blkaddr(e) != NULL_ADDR &&
new_blkaddr == NEW_ADDR);
write_unlock(&nm_i->nat_tree_lock);
}
-static int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
+int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
get_node_info(sbi, dn->nid, &ni);
if (dn->inode->i_blocks == 0) {
- BUG_ON(ni.blk_addr != NULL_ADDR);
+ f2fs_bug_on(ni.blk_addr != NULL_ADDR);
goto invalidate;
}
- BUG_ON(ni.blk_addr == NULL_ADDR);
+ f2fs_bug_on(ni.blk_addr == NULL_ADDR);
/* Deallocate node address */
invalidate_blocks(sbi, ni.blk_addr);
}
/* 0 is possible, after f2fs_new_inode() is failed */
- BUG_ON(inode->i_blocks != 0 && inode->i_blocks != 1);
+ f2fs_bug_on(inode->i_blocks != 0 && inode->i_blocks != 1);
set_new_dnode(&dn, inode, page, page, ino);
truncate_node(&dn);
return 0;
get_node_info(sbi, dn->nid, &old_ni);
/* Reinitialize old_ni with new node page */
- BUG_ON(old_ni.blk_addr != NULL_ADDR);
+ f2fs_bug_on(old_ni.blk_addr != NULL_ADDR);
new_ni = old_ni;
new_ni.ino = dn->inode->i_ino;
set_node_addr(sbi, &new_ni, NEW_ADDR);
goto repeat;
}
got_it:
- BUG_ON(nid != nid_of_node(page));
+ f2fs_bug_on(nid != nid_of_node(page));
mark_page_accessed(page);
return page;
}
return nwritten;
}
+int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
+{
+ struct address_space *mapping = sbi->node_inode->i_mapping;
+ pgoff_t index = 0, end = LONG_MAX;
+ struct pagevec pvec;
+ int nr_pages;
+ int ret2 = 0, ret = 0;
+
+ pagevec_init(&pvec, 0);
+ while ((index <= end) &&
+ (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
+ PAGECACHE_TAG_WRITEBACK,
+ min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1)) != 0) {
+ unsigned i;
+
+ for (i = 0; i < nr_pages; i++) {
+ struct page *page = pvec.pages[i];
+
+ /* until radix tree lookup accepts end_index */
+ if (page->index > end)
+ continue;
+
+ if (ino && ino_of_node(page) == ino) {
+ wait_on_page_writeback(page);
+ if (TestClearPageError(page))
+ ret = -EIO;
+ }
+ }
+ pagevec_release(&pvec);
+ cond_resched();
+ }
+
+ if (test_and_clear_bit(AS_ENOSPC, &mapping->flags))
+ ret2 = -ENOSPC;
+ if (test_and_clear_bit(AS_EIO, &mapping->flags))
+ ret2 = -EIO;
+ if (!ret)
+ ret = ret2;
+ return ret;
+}
+
static int f2fs_write_node_page(struct page *page,
struct writeback_control *wbc)
{
block_t new_addr;
struct node_info ni;
+ if (sbi->por_doing)
+ goto redirty_out;
+
wait_on_page_writeback(page);
/* get old block addr of this node page */
nid = nid_of_node(page);
- BUG_ON(page->index != nid);
+ f2fs_bug_on(page->index != nid);
get_node_info(sbi, nid, &ni);
return 0;
}
- if (wbc->for_reclaim) {
- dec_page_count(sbi, F2FS_DIRTY_NODES);
- wbc->pages_skipped++;
- set_page_dirty(page);
- return AOP_WRITEPAGE_ACTIVATE;
- }
+ if (wbc->for_reclaim)
+ goto redirty_out;
mutex_lock(&sbi->node_write);
set_page_writeback(page);
mutex_unlock(&sbi->node_write);
unlock_page(page);
return 0;
+
+redirty_out:
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ wbc->pages_skipped++;
+ set_page_dirty(page);
+ return AOP_WRITEPAGE_ACTIVATE;
}
/*
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
long nr_to_write = wbc->nr_to_write;
- /* First check balancing cached NAT entries */
- if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
- f2fs_sync_fs(sbi->sb, true);
- return 0;
- }
+ /* balancing f2fs's metadata in background */
+ f2fs_balance_fs_bg(sbi);
/* collect a number of dirty node pages and write together */
if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES)
struct address_space *mapping = page->mapping;
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
+ trace_f2fs_set_page_dirty(page, NODE);
+
SetPageUptodate(page);
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
if (nid == 0)
return 0;
- if (!build)
- goto retry;
-
- /* do not add allocated nids */
- read_lock(&nm_i->nat_tree_lock);
- ne = __lookup_nat_cache(nm_i, nid);
- if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
- allocated = true;
- read_unlock(&nm_i->nat_tree_lock);
- if (allocated)
- return 0;
-retry:
- i = kmem_cache_alloc(free_nid_slab, GFP_NOFS);
- if (!i) {
- cond_resched();
- goto retry;
+ if (build) {
+ /* do not add allocated nids */
+ read_lock(&nm_i->nat_tree_lock);
+ ne = __lookup_nat_cache(nm_i, nid);
+ if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
+ allocated = true;
+ read_unlock(&nm_i->nat_tree_lock);
+ if (allocated)
+ return 0;
}
+
+ i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS);
i->nid = nid;
i->state = NID_NEW;
break;
blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
- BUG_ON(blk_addr == NEW_ADDR);
+ f2fs_bug_on(blk_addr == NEW_ADDR);
if (blk_addr == NULL_ADDR) {
if (add_free_nid(nm_i, start_nid, true) < 0)
break;
/* We should not use stale free nids created by build_free_nids */
if (nm_i->fcnt && !sbi->on_build_free_nids) {
- BUG_ON(list_empty(&nm_i->free_nid_list));
+ f2fs_bug_on(list_empty(&nm_i->free_nid_list));
list_for_each(this, &nm_i->free_nid_list) {
i = list_entry(this, struct free_nid, list);
if (i->state == NID_NEW)
break;
}
- BUG_ON(i->state != NID_NEW);
+ f2fs_bug_on(i->state != NID_NEW);
*nid = i->nid;
i->state = NID_ALLOC;
nm_i->fcnt--;
/* Let's scan nat pages and its caches to get free nids */
mutex_lock(&nm_i->build_lock);
- sbi->on_build_free_nids = 1;
+ sbi->on_build_free_nids = true;
build_free_nids(sbi);
- sbi->on_build_free_nids = 0;
+ sbi->on_build_free_nids = false;
mutex_unlock(&nm_i->build_lock);
goto retry;
}
spin_lock(&nm_i->free_nid_list_lock);
i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
- BUG_ON(!i || i->state != NID_ALLOC);
+ f2fs_bug_on(!i || i->state != NID_ALLOC);
__del_from_free_nid_list(i);
spin_unlock(&nm_i->free_nid_list_lock);
}
spin_lock(&nm_i->free_nid_list_lock);
i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
- BUG_ON(!i || i->state != NID_ALLOC);
+ f2fs_bug_on(!i || i->state != NID_ALLOC);
if (nm_i->fcnt > 2 * MAX_FREE_NIDS) {
__del_from_free_nid_list(i);
} else {
nat_blk = page_address(page);
}
- BUG_ON(!nat_blk);
+ f2fs_bug_on(!nat_blk);
raw_ne = nat_blk->entries[nid - start_nid];
flush_now:
new_blkaddr = nat_get_blkaddr(ne);
/* destroy free nid list */
spin_lock(&nm_i->free_nid_list_lock);
list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) {
- BUG_ON(i->state == NID_ALLOC);
+ f2fs_bug_on(i->state == NID_ALLOC);
__del_from_free_nid_list(i);
nm_i->fcnt--;
}
- BUG_ON(nm_i->fcnt);
+ f2fs_bug_on(nm_i->fcnt);
spin_unlock(&nm_i->free_nid_list_lock);
/* destroy nat cache */
__del_from_nat_cache(nm_i, e);
}
}
- BUG_ON(nm_i->nat_cnt);
+ f2fs_bug_on(nm_i->nat_cnt);
write_unlock(&nm_i->nat_tree_lock);
kfree(nm_i->nat_bitmap);
name.name = raw_inode->i_name;
retry:
de = f2fs_find_entry(dir, &name, &page);
- if (de && inode->i_ino == le32_to_cpu(de->ino)) {
- kunmap(page);
- f2fs_put_page(page, 0);
- goto out;
- }
+ if (de && inode->i_ino == le32_to_cpu(de->ino))
+ goto out_unmap_put;
if (de) {
einode = f2fs_iget(inode->i_sb, le32_to_cpu(de->ino));
if (IS_ERR(einode)) {
WARN_ON(1);
if (PTR_ERR(einode) == -ENOENT)
err = -EEXIST;
- goto out;
+ goto out_unmap_put;
+ }
+ err = acquire_orphan_inode(F2FS_SB(inode->i_sb));
+ if (err) {
+ iput(einode);
+ goto out_unmap_put;
}
f2fs_delete_entry(de, page, einode);
iput(einode);
goto retry;
}
err = __f2fs_add_link(dir, &name, inode);
+ goto out;
+
+out_unmap_put:
+ kunmap(page);
+ f2fs_put_page(page, 0);
out:
f2fs_msg(inode->i_sb, KERN_NOTICE, "recover_inode and its dentry: "
"ino = %x, name = %s, dir = %lx, err = %d",
struct f2fs_summary sum;
struct node_info ni;
int err = 0, recovered = 0;
- int ilock;
start = start_bidx_of_node(ofs_of_node(page), fi);
if (IS_INODE(page))
else
end = start + ADDRS_PER_BLOCK;
- ilock = mutex_lock_op(sbi);
+ f2fs_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, start, ALLOC_NODE);
if (err) {
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
return err;
}
wait_on_page_writeback(dn.node_page);
get_node_info(sbi, dn.nid, &ni);
- BUG_ON(ni.ino != ino_of_node(page));
- BUG_ON(ofs_of_node(dn.node_page) != ofs_of_node(page));
+ f2fs_bug_on(ni.ino != ino_of_node(page));
+ f2fs_bug_on(ofs_of_node(dn.node_page) != ofs_of_node(page));
for (; start < end; start++) {
block_t src, dest;
if (src != dest && dest != NEW_ADDR && dest != NULL_ADDR) {
if (src == NULL_ADDR) {
- int err = reserve_new_block(&dn);
+ err = reserve_new_block(&dn);
/* We should not get -ENOSPC */
- BUG_ON(err);
+ f2fs_bug_on(err);
}
/* Check the previous node page having this index */
recover_node_page(sbi, dn.node_page, &sum, &ni, blkaddr);
err:
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, ilock);
+ f2fs_unlock_op(sbi);
f2fs_msg(sbi->sb, KERN_NOTICE, "recover_data: ino = %lx, "
"recovered_data = %d blocks, err = %d",
{
struct list_head inode_list;
int err;
+ bool need_writecp = false;
fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry",
sizeof(struct fsync_inode_entry), NULL);
INIT_LIST_HEAD(&inode_list);
/* step #1: find fsynced inode numbers */
- sbi->por_doing = 1;
+ sbi->por_doing = true;
err = find_fsync_dnodes(sbi, &inode_list);
if (err)
goto out;
if (list_empty(&inode_list))
goto out;
+ need_writecp = true;
+
/* step #2: recover data */
err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
- BUG_ON(!list_empty(&inode_list));
+ f2fs_bug_on(!list_empty(&inode_list));
out:
destroy_fsync_dnodes(&inode_list);
kmem_cache_destroy(fsync_entry_slab);
- sbi->por_doing = 0;
- if (!err)
+ sbi->por_doing = false;
+ if (!err && need_writecp)
write_checkpoint(sbi, false);
return err;
}
}
}
+void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
+{
+ /* check the # of cached NAT entries and prefree segments */
+ if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
+ excess_prefree_segs(sbi))
+ f2fs_sync_fs(sbi->sb, true);
+}
+
static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
enum dirty_type dirty_type)
{
if (dirty_type == DIRTY) {
struct seg_entry *sentry = get_seg_entry(sbi, segno);
- enum dirty_type t = DIRTY_HOT_DATA;
-
- dirty_type = sentry->type;
-
- if (!test_and_set_bit(segno, dirty_i->dirty_segmap[dirty_type]))
- dirty_i->nr_dirty[dirty_type]++;
+ enum dirty_type t = sentry->type;
- /* Only one bitmap should be set */
- for (; t <= DIRTY_COLD_NODE; t++) {
- if (t == dirty_type)
- continue;
- if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
- dirty_i->nr_dirty[t]--;
- }
+ if (!test_and_set_bit(segno, dirty_i->dirty_segmap[t]))
+ dirty_i->nr_dirty[t]++;
}
}
dirty_i->nr_dirty[dirty_type]--;
if (dirty_type == DIRTY) {
- enum dirty_type t = DIRTY_HOT_DATA;
+ struct seg_entry *sentry = get_seg_entry(sbi, segno);
+ enum dirty_type t = sentry->type;
- /* clear all the bitmaps */
- for (; t <= DIRTY_COLD_NODE; t++)
- if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
- dirty_i->nr_dirty[t]--;
+ if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
+ dirty_i->nr_dirty[t]--;
if (get_valid_blocks(sbi, segno, sbi->segs_per_sec) == 0)
clear_bit(GET_SECNO(sbi, segno),
void clear_prefree_segments(struct f2fs_sb_info *sbi)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- unsigned int segno = -1;
+ unsigned long *prefree_map = dirty_i->dirty_segmap[PRE];
unsigned int total_segs = TOTAL_SEGS(sbi);
+ unsigned int start = 0, end = -1;
mutex_lock(&dirty_i->seglist_lock);
+
while (1) {
- segno = find_next_bit(dirty_i->dirty_segmap[PRE], total_segs,
- segno + 1);
- if (segno >= total_segs)
+ int i;
+ start = find_next_bit(prefree_map, total_segs, end + 1);
+ if (start >= total_segs)
break;
+ end = find_next_zero_bit(prefree_map, total_segs, start + 1);
+
+ for (i = start; i < end; i++)
+ clear_bit(i, prefree_map);
- if (test_and_clear_bit(segno, dirty_i->dirty_segmap[PRE]))
- dirty_i->nr_dirty[PRE]--;
-
- /* Let's use trim */
- if (test_opt(sbi, DISCARD))
- blkdev_issue_discard(sbi->sb->s_bdev,
- START_BLOCK(sbi, segno) <<
- sbi->log_sectors_per_block,
- 1 << (sbi->log_sectors_per_block +
- sbi->log_blocks_per_seg),
- GFP_NOFS, 0);
+ dirty_i->nr_dirty[PRE] -= end - start;
+
+ if (!test_opt(sbi, DISCARD))
+ continue;
+
+ blkdev_issue_discard(sbi->sb->s_bdev,
+ START_BLOCK(sbi, start) <<
+ sbi->log_sectors_per_block,
+ (1 << (sbi->log_sectors_per_block +
+ sbi->log_blocks_per_seg)) * (end - start),
+ GFP_NOFS, 0);
}
mutex_unlock(&dirty_i->seglist_lock);
}
new_vblocks = se->valid_blocks + del;
offset = GET_SEGOFF_FROM_SEG0(sbi, blkaddr) & (sbi->blocks_per_seg - 1);
- BUG_ON((new_vblocks >> (sizeof(unsigned short) << 3) ||
+ f2fs_bug_on((new_vblocks >> (sizeof(unsigned short) << 3) ||
(new_vblocks > sbi->blocks_per_seg)));
se->valid_blocks = new_vblocks;
unsigned int segno = GET_SEGNO(sbi, addr);
struct sit_info *sit_i = SIT_I(sbi);
- BUG_ON(addr == NULL_ADDR);
+ f2fs_bug_on(addr == NULL_ADDR);
if (addr == NEW_ADDR)
return;
*/
int npages_for_summary_flush(struct f2fs_sb_info *sbi)
{
- int total_size_bytes = 0;
int valid_sum_count = 0;
- int i, sum_space;
+ int i, sum_in_page;
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
if (sbi->ckpt->alloc_type[i] == SSR)
valid_sum_count += curseg_blkoff(sbi, i);
}
- total_size_bytes = valid_sum_count * (SUMMARY_SIZE + 1)
- + sizeof(struct nat_journal) + 2
- + sizeof(struct sit_journal) + 2;
- sum_space = PAGE_CACHE_SIZE - SUM_FOOTER_SIZE;
- if (total_size_bytes < sum_space)
+ sum_in_page = (PAGE_CACHE_SIZE - 2 * SUM_JOURNAL_SIZE -
+ SUM_FOOTER_SIZE) / SUMMARY_SIZE;
+ if (valid_sum_count <= sum_in_page)
return 1;
- else if (total_size_bytes < 2 * sum_space)
+ else if ((valid_sum_count - sum_in_page) <=
+ (PAGE_CACHE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
return 2;
return 3;
}
if (dir == ALLOC_RIGHT) {
secno = find_next_zero_bit(free_i->free_secmap,
TOTAL_SECS(sbi), 0);
- BUG_ON(secno >= TOTAL_SECS(sbi));
+ f2fs_bug_on(secno >= TOTAL_SECS(sbi));
} else {
go_left = 1;
left_start = hint - 1;
}
left_start = find_next_zero_bit(free_i->free_secmap,
TOTAL_SECS(sbi), 0);
- BUG_ON(left_start >= TOTAL_SECS(sbi));
+ f2fs_bug_on(left_start >= TOTAL_SECS(sbi));
break;
}
secno = left_start;
}
got_it:
/* set it as dirty segment in free segmap */
- BUG_ON(test_bit(segno, free_i->free_segmap));
+ f2fs_bug_on(test_bit(segno, free_i->free_segmap));
__set_inuse(sbi, segno);
*newseg = segno;
write_unlock(&free_i->segmap_lock);
change_curseg(sbi, type, true);
else
new_curseg(sbi, type, false);
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->segment_count[curseg->alloc_type]++;
-#endif
+
+ stat_inc_seg_type(sbi, curseg);
}
void allocate_new_segments(struct f2fs_sb_info *sbi)
if (p->is_sync)
complete(p->wait);
+
+ if (!get_pages(p->sbi, F2FS_WRITEBACK) &&
+ !list_empty(&p->sbi->cp_wait.task_list))
+ wake_up(&p->sbi->cp_wait);
+
kfree(p);
bio_put(bio);
}
block_t blk_addr, enum page_type type)
{
struct block_device *bdev = sbi->sb->s_bdev;
+ int bio_blocks;
verify_block_addr(sbi, blk_addr);
goto retry;
}
- sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi));
+ bio_blocks = MAX_BIO_BLOCKS(max_hw_blocks(sbi));
+ sbi->bio[type] = f2fs_bio_alloc(bdev, bio_blocks);
sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
sbi->bio[type]->bi_private = priv;
/*
return __get_segment_type_4(page, p_type);
}
/* NR_CURSEG_TYPE(6) logs by default */
- BUG_ON(sbi->active_logs != NR_CURSEG_TYPE);
+ f2fs_bug_on(sbi->active_logs != NR_CURSEG_TYPE);
return __get_segment_type_6(page, p_type);
}
mutex_lock(&sit_i->sentry_lock);
__refresh_next_blkoff(sbi, curseg);
-#ifdef CONFIG_F2FS_STAT_FS
- sbi->block_count[curseg->alloc_type]++;
-#endif
+
+ stat_inc_block_count(sbi, curseg);
/*
* SIT information should be updated before segment allocation,
struct f2fs_summary sum;
struct node_info ni;
- BUG_ON(old_blkaddr == NULL_ADDR);
+ f2fs_bug_on(old_blkaddr == NULL_ADDR);
get_node_info(sbi, dn->nid, &ni);
set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version);
SUM_JOURNAL_SIZE);
written_size += SUM_JOURNAL_SIZE;
- set_page_dirty(page);
-
/* Step 3: write summary entries */
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
unsigned short blkoff;
summary = (struct f2fs_summary *)(kaddr + written_size);
*summary = seg_i->sum_blk->entries[j];
written_size += SUMMARY_SIZE;
- set_page_dirty(page);
if (written_size + SUMMARY_SIZE <= PAGE_CACHE_SIZE -
SUM_FOOTER_SIZE)
continue;
+ set_page_dirty(page);
f2fs_put_page(page, 1);
page = NULL;
}
}
- if (page)
+ if (page) {
+ set_page_dirty(page);
f2fs_put_page(page, 1);
+ }
}
static void write_normal_summaries(struct f2fs_sb_info *sbi,
/* get current sit block page without lock */
src_page = get_meta_page(sbi, src_off);
dst_page = grab_meta_page(sbi, dst_off);
- BUG_ON(PageDirty(src_page));
+ f2fs_bug_on(PageDirty(src_page));
src_addr = page_address(src_page);
dst_addr = page_address(dst_page);
__mark_sit_entry_dirty(sbi, segno);
}
update_sits_in_cursum(sum, -sits_in_cursum(sum));
- return 1;
+ return true;
}
- return 0;
+ return false;
}
/*
sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main);
sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
+ sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS;
err = build_sit_info(sbi);
if (err)
void destroy_segment_manager(struct f2fs_sb_info *sbi)
{
struct f2fs_sm_info *sm_info = SM_I(sbi);
+ if (!sm_info)
+ return;
destroy_dirty_segmap(sbi);
destroy_curseg(sbi);
destroy_free_segmap(sbi);
#define NULL_SEGNO ((unsigned int)(~0))
#define NULL_SECNO ((unsigned int)(~0))
+#define DEF_RECLAIM_PREFREE_SEGMENTS 100 /* 200MB of prefree segments */
+
/* L: Logical segment # in volume, R: Relative segment # in main area */
#define GET_L2R_SEGNO(free_i, segno) (segno - free_i->start_segno)
#define GET_R2L_SEGNO(free_i, segno) (segno + free_i->start_segno)
(blk_addr << ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
#define SECTOR_TO_BLOCK(sbi, sectors) \
(sectors >> ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
+#define MAX_BIO_BLOCKS(max_hw_blocks) \
+ (min((int)max_hw_blocks, BIO_MAX_PAGES))
/* during checkpoint, bio_private is used to synchronize the last bio */
struct bio_private {
reserved_sections(sbi)));
}
+static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
+{
+ return (prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments);
+}
+
static inline int utilization(struct f2fs_sb_info *sbi)
{
return div_u64((u64)valid_user_blocks(sbi) * 100, sbi->user_block_count);
return curseg->next_blkoff;
}
+#ifdef CONFIG_F2FS_CHECK_FS
static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
{
unsigned int end_segno = SM_I(sbi)->segment_count - 1;
BUG_ON(segno > end_segno);
}
-/*
- * This function is used for only debugging.
- * NOTE: In future, we have to remove this function.
- */
static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
{
struct f2fs_sm_info *sm_info = SM_I(sbi);
{
struct f2fs_sm_info *sm_info = SM_I(sbi);
unsigned int end_segno = sm_info->segment_count - 1;
+ bool is_valid = test_bit_le(0, raw_sit->valid_map) ? true : false;
int valid_blocks = 0;
- int i;
+ int cur_pos = 0, next_pos;
/* check segment usage */
BUG_ON(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg);
BUG_ON(segno > end_segno);
/* check bitmap with valid block count */
- for (i = 0; i < sbi->blocks_per_seg; i++)
- if (f2fs_test_bit(i, raw_sit->valid_map))
- valid_blocks++;
+ do {
+ if (is_valid) {
+ next_pos = find_next_zero_bit_le(&raw_sit->valid_map,
+ sbi->blocks_per_seg,
+ cur_pos);
+ valid_blocks += next_pos - cur_pos;
+ } else
+ next_pos = find_next_bit_le(&raw_sit->valid_map,
+ sbi->blocks_per_seg,
+ cur_pos);
+ cur_pos = next_pos;
+ is_valid = !is_valid;
+ } while (cur_pos < sbi->blocks_per_seg);
BUG_ON(GET_SIT_VBLOCKS(raw_sit) != valid_blocks);
}
+#else
+#define check_seg_range(sbi, segno)
+#define verify_block_addr(sbi, blk_addr)
+#define check_block_count(sbi, segno, raw_sit)
+#endif
static inline pgoff_t current_sit_addr(struct f2fs_sb_info *sbi,
unsigned int start)
Opt_disable_roll_forward,
Opt_discard,
Opt_noheap,
+ Opt_user_xattr,
Opt_nouser_xattr,
+ Opt_acl,
Opt_noacl,
Opt_active_logs,
Opt_disable_ext_identify,
{Opt_disable_roll_forward, "disable_roll_forward"},
{Opt_discard, "discard"},
{Opt_noheap, "no_heap"},
+ {Opt_user_xattr, "user_xattr"},
{Opt_nouser_xattr, "nouser_xattr"},
+ {Opt_acl, "acl"},
{Opt_noacl, "noacl"},
{Opt_active_logs, "active_logs=%u"},
{Opt_disable_ext_identify, "disable_ext_identify"},
};
/* Sysfs support for f2fs */
+enum {
+ GC_THREAD, /* struct f2fs_gc_thread */
+ SM_INFO, /* struct f2fs_sm_info */
+};
+
struct f2fs_attr {
struct attribute attr;
ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
const char *, size_t);
+ int struct_type;
int offset;
};
+static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
+{
+ if (struct_type == GC_THREAD)
+ return (unsigned char *)sbi->gc_thread;
+ else if (struct_type == SM_INFO)
+ return (unsigned char *)SM_I(sbi);
+ return NULL;
+}
+
static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
- struct f2fs_gc_kthread *gc_kth = sbi->gc_thread;
+ unsigned char *ptr = NULL;
unsigned int *ui;
- if (!gc_kth)
+ ptr = __struct_ptr(sbi, a->struct_type);
+ if (!ptr)
return -EINVAL;
- ui = (unsigned int *)(((char *)gc_kth) + a->offset);
+ ui = (unsigned int *)(ptr + a->offset);
return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
}
struct f2fs_sb_info *sbi,
const char *buf, size_t count)
{
- struct f2fs_gc_kthread *gc_kth = sbi->gc_thread;
+ unsigned char *ptr;
unsigned long t;
unsigned int *ui;
ssize_t ret;
- if (!gc_kth)
+ ptr = __struct_ptr(sbi, a->struct_type);
+ if (!ptr)
return -EINVAL;
- ui = (unsigned int *)(((char *)gc_kth) + a->offset);
+ ui = (unsigned int *)(ptr + a->offset);
ret = kstrtoul(skip_spaces(buf), 0, &t);
if (ret < 0)
complete(&sbi->s_kobj_unregister);
}
-#define F2FS_ATTR_OFFSET(_name, _mode, _show, _store, _elname) \
+#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
static struct f2fs_attr f2fs_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
.show = _show, \
.store = _store, \
- .offset = offsetof(struct f2fs_gc_kthread, _elname), \
+ .struct_type = _struct_type, \
+ .offset = _offset \
}
-#define F2FS_RW_ATTR(name, elname) \
- F2FS_ATTR_OFFSET(name, 0644, f2fs_sbi_show, f2fs_sbi_store, elname)
+#define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
+ F2FS_ATTR_OFFSET(struct_type, name, 0644, \
+ f2fs_sbi_show, f2fs_sbi_store, \
+ offsetof(struct struct_name, elname))
-F2FS_RW_ATTR(gc_min_sleep_time, min_sleep_time);
-F2FS_RW_ATTR(gc_max_sleep_time, max_sleep_time);
-F2FS_RW_ATTR(gc_no_gc_sleep_time, no_gc_sleep_time);
-F2FS_RW_ATTR(gc_idle, gc_idle);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle);
+F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
ATTR_LIST(gc_max_sleep_time),
ATTR_LIST(gc_no_gc_sleep_time),
ATTR_LIST(gc_idle),
+ ATTR_LIST(reclaim_segments),
NULL,
};
set_opt(sbi, NOHEAP);
break;
#ifdef CONFIG_F2FS_FS_XATTR
+ case Opt_user_xattr:
+ set_opt(sbi, XATTR_USER);
+ break;
case Opt_nouser_xattr:
clear_opt(sbi, XATTR_USER);
break;
set_opt(sbi, INLINE_XATTR);
break;
#else
+ case Opt_user_xattr:
+ f2fs_msg(sb, KERN_INFO,
+ "user_xattr options not supported");
+ break;
case Opt_nouser_xattr:
f2fs_msg(sb, KERN_INFO,
"nouser_xattr options not supported");
break;
#endif
#ifdef CONFIG_F2FS_FS_POSIX_ACL
+ case Opt_acl:
+ set_opt(sbi, POSIX_ACL);
+ break;
case Opt_noacl:
clear_opt(sbi, POSIX_ACL);
break;
#else
+ case Opt_acl:
+ f2fs_msg(sb, KERN_INFO, "acl options not supported");
+ break;
case Opt_noacl:
f2fs_msg(sb, KERN_INFO, "noacl options not supported");
break;
f2fs_destroy_stats(sbi);
stop_gc_thread(sbi);
- write_checkpoint(sbi, true);
+ /* We don't need to do checkpoint when it's clean */
+ if (sbi->s_dirty && get_pages(sbi, F2FS_DIRTY_NODES))
+ write_checkpoint(sbi, true);
iput(sbi->node_inode);
iput(sbi->meta_inode);
atomic_set(&sbi->nr_pages[i], 0);
}
-static int validate_superblock(struct super_block *sb,
- struct f2fs_super_block **raw_super,
- struct buffer_head **raw_super_buf, sector_t block)
+/*
+ * Read f2fs raw super block.
+ * Because we have two copies of super block, so read the first one at first,
+ * if the first one is invalid, move to read the second one.
+ */
+static int read_raw_super_block(struct super_block *sb,
+ struct f2fs_super_block **raw_super,
+ struct buffer_head **raw_super_buf)
{
- const char *super = (block == 0 ? "first" : "second");
+ int block = 0;
- /* read f2fs raw super block */
+retry:
*raw_super_buf = sb_bread(sb, block);
if (!*raw_super_buf) {
- f2fs_msg(sb, KERN_ERR, "unable to read %s superblock",
- super);
- return -EIO;
+ f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock",
+ block + 1);
+ if (block == 0) {
+ block++;
+ goto retry;
+ } else {
+ return -EIO;
+ }
}
*raw_super = (struct f2fs_super_block *)
((char *)(*raw_super_buf)->b_data + F2FS_SUPER_OFFSET);
/* sanity checking of raw super */
- if (!sanity_check_raw_super(sb, *raw_super))
- return 0;
+ if (sanity_check_raw_super(sb, *raw_super)) {
+ brelse(*raw_super_buf);
+ f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
+ "in %dth superblock", block + 1);
+ if(block == 0) {
+ block++;
+ goto retry;
+ } else {
+ return -EINVAL;
+ }
+ }
- f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
- "in %s superblock", super);
- return -EINVAL;
+ return 0;
}
static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
struct buffer_head *raw_super_buf;
struct inode *root;
long err = -EINVAL;
- int i;
/* allocate memory for f2fs-specific super block info */
sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
goto free_sbi;
}
- err = validate_superblock(sb, &raw_super, &raw_super_buf, 0);
- if (err) {
- brelse(raw_super_buf);
- /* check secondary superblock when primary failed */
- err = validate_superblock(sb, &raw_super, &raw_super_buf, 1);
- if (err)
- goto free_sb_buf;
- }
+ err = read_raw_super_block(sb, &raw_super, &raw_super_buf);
+ if (err)
+ goto free_sbi;
+
sb->s_fs_info = sbi;
/* init some FS parameters */
sbi->active_logs = NR_CURSEG_TYPE;
mutex_init(&sbi->gc_mutex);
mutex_init(&sbi->writepages);
mutex_init(&sbi->cp_mutex);
- for (i = 0; i < NR_GLOBAL_LOCKS; i++)
- mutex_init(&sbi->fs_lock[i]);
mutex_init(&sbi->node_write);
- sbi->por_doing = 0;
+ sbi->por_doing = false;
spin_lock_init(&sbi->stat_lock);
init_rwsem(&sbi->bio_sem);
+ init_rwsem(&sbi->cp_rwsem);
+ init_waitqueue_head(&sbi->cp_wait);
init_sb_info(sbi);
/* get an inode for meta space */
/* After POR, we can run background GC thread.*/
err = start_gc_thread(sbi);
if (err)
- goto fail;
+ goto free_gc;
}
err = f2fs_build_stats(sbi);
if (err)
- goto fail;
+ goto free_gc;
if (f2fs_proc_root)
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
return 0;
fail:
+ if (sbi->s_proc) {
+ remove_proc_entry("segment_info", sbi->s_proc);
+ remove_proc_entry(sb->s_id, f2fs_proc_root);
+ }
+ f2fs_destroy_stats(sbi);
+free_gc:
stop_gc_thread(sbi);
free_root_inode:
dput(sb->s_root);
}
#ifdef CONFIG_F2FS_FS_SECURITY
+static int __f2fs_setxattr(struct inode *inode, int name_index,
+ const char *name, const void *value, size_t value_len,
+ struct page *ipage);
static int f2fs_initxattrs(struct inode *inode, const struct xattr *xattr_array,
void *page)
{
int err = 0;
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
- err = f2fs_setxattr(inode, F2FS_XATTR_INDEX_SECURITY,
+ err = __f2fs_setxattr(inode, F2FS_XATTR_INDEX_SECURITY,
xattr->name, xattr->value,
xattr->value_len, (struct page *)page);
if (err < 0)
alloc_nid_failed(sbi, new_nid);
return PTR_ERR(xpage);
}
- BUG_ON(new_nid);
+ f2fs_bug_on(new_nid);
} else {
struct dnode_of_data dn;
set_new_dnode(&dn, inode, NULL, NULL, new_nid);
return error;
}
-int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
- const void *value, size_t value_len, struct page *ipage)
+static int __f2fs_setxattr(struct inode *inode, int name_index,
+ const char *name, const void *value, size_t value_len,
+ struct page *ipage)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct f2fs_inode_info *fi = F2FS_I(inode);
struct f2fs_xattr_entry *here, *last;
void *base_addr;
int found, newsize;
size_t name_len;
- int ilock;
__u32 new_hsize;
int error = -ENOMEM;
if (name_len > F2FS_NAME_LEN || value_len > MAX_VALUE_LEN(inode))
return -ERANGE;
- f2fs_balance_fs(sbi);
-
- ilock = mutex_lock_op(sbi);
-
base_addr = read_all_xattrs(inode, ipage);
if (!base_addr)
goto exit;
*/
free = MIN_OFFSET(inode) - ((char *)last - (char *)base_addr);
if (found)
- free = free - ENTRY_SIZE(here);
+ free = free + ENTRY_SIZE(here);
if (free < newsize) {
error = -ENOSPC;
else
update_inode_page(inode);
exit:
- mutex_unlock_op(sbi, ilock);
kzfree(base_addr);
return error;
}
+
+int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
+ const void *value, size_t value_len, struct page *ipage)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ int err;
+
+ f2fs_balance_fs(sbi);
+
+ f2fs_lock_op(sbi);
+ err = __f2fs_setxattr(inode, name_index, name, value, value_len, ipage);
+ f2fs_unlock_op(sbi);
+
+ return err;
+}
{ CURSEG_COLD_NODE, "Cold NODE" }, \
{ NO_CHECK_TYPE, "No TYPE" })
+#define show_file_type(type) \
+ __print_symbolic(type, \
+ { 0, "FILE" }, \
+ { 1, "DIR" })
+
#define show_gc_type(type) \
__print_symbolic(type, \
{ FG_GC, "Foreground GC" }, \
__entry->size)
);
+DECLARE_EVENT_CLASS(f2fs__page,
+
+ TP_PROTO(struct page *page, int type),
+
+ TP_ARGS(page, type),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, type)
+ __field(int, dir)
+ __field(pgoff_t, index)
+ __field(int, dirty)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = page->mapping->host->i_sb->s_dev;
+ __entry->ino = page->mapping->host->i_ino;
+ __entry->type = type;
+ __entry->dir = S_ISDIR(page->mapping->host->i_mode);
+ __entry->index = page->index;
+ __entry->dirty = PageDirty(page);
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",
+ show_dev_ino(__entry),
+ show_block_type(__entry->type),
+ show_file_type(__entry->dir),
+ (unsigned long)__entry->index,
+ __entry->dirty)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
+
+ TP_PROTO(struct page *page, int type),
+
+ TP_ARGS(page, type)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_vm_page_mkwrite,
+
+ TP_PROTO(struct page *page, int type),
+
+ TP_ARGS(page, type)
+);
+
TRACE_EVENT(f2fs_submit_write_page,
TP_PROTO(struct page *page, block_t blk_addr, int type),
projects / karo-tx-linux.git / commitdiff