#include "segment.h"
#include <trace/events/f2fs.h>
-static struct kmem_cache *orphan_entry_slab;
+static struct kmem_cache *ino_entry_slab;
static struct kmem_cache *inode_entry_slab;
/*
goto redirty_out;
if (wbc->for_reclaim)
goto redirty_out;
-
- /* Should not write any meta pages, if any IO error was occurred */
- if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
- goto no_write;
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto redirty_out;
f2fs_wait_on_page_writeback(page, META);
write_meta_page(sbi, page);
-no_write:
dec_page_count(sbi, F2FS_DIRTY_META);
unlock_page(page);
return 0;
.set_page_dirty = f2fs_set_meta_page_dirty,
};
+static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ struct ino_entry *e;
+retry:
+ spin_lock(&sbi->ino_lock[type]);
+
+ e = radix_tree_lookup(&sbi->ino_root[type], ino);
+ if (!e) {
+ e = kmem_cache_alloc(ino_entry_slab, GFP_ATOMIC);
+ if (!e) {
+ spin_unlock(&sbi->ino_lock[type]);
+ goto retry;
+ }
+ if (radix_tree_insert(&sbi->ino_root[type], ino, e)) {
+ spin_unlock(&sbi->ino_lock[type]);
+ kmem_cache_free(ino_entry_slab, e);
+ goto retry;
+ }
+ memset(e, 0, sizeof(struct ino_entry));
+ e->ino = ino;
+
+ list_add_tail(&e->list, &sbi->ino_list[type]);
+ }
+ spin_unlock(&sbi->ino_lock[type]);
+}
+
+static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ struct ino_entry *e;
+
+ spin_lock(&sbi->ino_lock[type]);
+ e = radix_tree_lookup(&sbi->ino_root[type], ino);
+ if (e) {
+ list_del(&e->list);
+ radix_tree_delete(&sbi->ino_root[type], ino);
+ if (type == ORPHAN_INO)
+ sbi->n_orphans--;
+ spin_unlock(&sbi->ino_lock[type]);
+ kmem_cache_free(ino_entry_slab, e);
+ return;
+ }
+ spin_unlock(&sbi->ino_lock[type]);
+}
+
+void add_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ /* add new dirty ino entry into list */
+ __add_ino_entry(sbi, ino, type);
+}
+
+void remove_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ /* remove dirty ino entry from list */
+ __remove_ino_entry(sbi, ino, type);
+}
+
+/* mode should be APPEND_INO or UPDATE_INO */
+bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode)
+{
+ struct ino_entry *e;
+ spin_lock(&sbi->ino_lock[mode]);
+ e = radix_tree_lookup(&sbi->ino_root[mode], ino);
+ spin_unlock(&sbi->ino_lock[mode]);
+ return e ? true : false;
+}
+
+void release_dirty_inode(struct f2fs_sb_info *sbi)
+{
+ struct ino_entry *e, *tmp;
+ int i;
+
+ for (i = APPEND_INO; i <= UPDATE_INO; i++) {
+ spin_lock(&sbi->ino_lock[i]);
+ list_for_each_entry_safe(e, tmp, &sbi->ino_list[i], list) {
+ list_del(&e->list);
+ radix_tree_delete(&sbi->ino_root[i], e->ino);
+ kmem_cache_free(ino_entry_slab, e);
+ }
+ spin_unlock(&sbi->ino_lock[i]);
+ }
+}
+
int acquire_orphan_inode(struct f2fs_sb_info *sbi)
{
int err = 0;
- spin_lock(&sbi->orphan_inode_lock);
+ spin_lock(&sbi->ino_lock[ORPHAN_INO]);
if (unlikely(sbi->n_orphans >= sbi->max_orphans))
err = -ENOSPC;
else
sbi->n_orphans++;
- spin_unlock(&sbi->orphan_inode_lock);
+ spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
return err;
}
void release_orphan_inode(struct f2fs_sb_info *sbi)
{
- spin_lock(&sbi->orphan_inode_lock);
+ spin_lock(&sbi->ino_lock[ORPHAN_INO]);
f2fs_bug_on(sbi->n_orphans == 0);
sbi->n_orphans--;
- spin_unlock(&sbi->orphan_inode_lock);
+ spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
}
void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
{
- struct list_head *head;
- struct orphan_inode_entry *new, *orphan;
-
- new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
- new->ino = ino;
-
- spin_lock(&sbi->orphan_inode_lock);
- head = &sbi->orphan_inode_list;
- list_for_each_entry(orphan, head, list) {
- if (orphan->ino == ino) {
- spin_unlock(&sbi->orphan_inode_lock);
- kmem_cache_free(orphan_entry_slab, new);
- return;
- }
-
- if (orphan->ino > ino)
- break;
- }
-
- /* add new orphan entry into list which is sorted by inode number */
- list_add_tail(&new->list, &orphan->list);
- spin_unlock(&sbi->orphan_inode_lock);
+ /* add new orphan ino entry into list */
+ __add_ino_entry(sbi, ino, ORPHAN_INO);
}
void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
{
- struct list_head *head;
- struct orphan_inode_entry *orphan;
-
- spin_lock(&sbi->orphan_inode_lock);
- head = &sbi->orphan_inode_list;
- list_for_each_entry(orphan, head, list) {
- if (orphan->ino == ino) {
- list_del(&orphan->list);
- f2fs_bug_on(sbi->n_orphans == 0);
- sbi->n_orphans--;
- spin_unlock(&sbi->orphan_inode_lock);
- kmem_cache_free(orphan_entry_slab, orphan);
- return;
- }
- }
- spin_unlock(&sbi->orphan_inode_lock);
+ /* remove orphan entry from orphan list */
+ __remove_ino_entry(sbi, ino, ORPHAN_INO);
}
static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
unsigned short orphan_blocks = (unsigned short)((sbi->n_orphans +
(F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK);
struct page *page = NULL;
- struct orphan_inode_entry *orphan = NULL;
+ struct ino_entry *orphan = NULL;
for (index = 0; index < orphan_blocks; index++)
grab_meta_page(sbi, start_blk + index);
index = 1;
- spin_lock(&sbi->orphan_inode_lock);
- head = &sbi->orphan_inode_list;
+ spin_lock(&sbi->ino_lock[ORPHAN_INO]);
+ head = &sbi->ino_list[ORPHAN_INO];
/* loop for each orphan inode entry and write them in Jornal block */
list_for_each_entry(orphan, head, list) {
f2fs_put_page(page, 1);
}
- spin_unlock(&sbi->orphan_inode_lock);
+ spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
}
static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
/*
* Freeze all the FS-operations for checkpoint.
*/
-static void block_operations(struct f2fs_sb_info *sbi)
+static int block_operations(struct f2fs_sb_info *sbi)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.for_reclaim = 0,
};
struct blk_plug plug;
+ int err = 0;
blk_start_plug(&plug);
if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
f2fs_unlock_all(sbi);
sync_dirty_dir_inodes(sbi);
+ if (unlikely(f2fs_cp_error(sbi))) {
+ err = -EIO;
+ goto out;
+ }
goto retry_flush_dents;
}
/*
- * POR: we should ensure that there is no dirty node pages
+ * POR: we should ensure that there are no dirty node pages
* until finishing nat/sit flush.
*/
retry_flush_nodes:
- mutex_lock(&sbi->node_write);
+ down_write(&sbi->node_write);
if (get_pages(sbi, F2FS_DIRTY_NODES)) {
- mutex_unlock(&sbi->node_write);
+ up_write(&sbi->node_write);
sync_node_pages(sbi, 0, &wbc);
+ if (unlikely(f2fs_cp_error(sbi))) {
+ f2fs_unlock_all(sbi);
+ err = -EIO;
+ goto out;
+ }
goto retry_flush_nodes;
}
+out:
blk_finish_plug(&plug);
+ return err;
}
static void unblock_operations(struct f2fs_sb_info *sbi)
{
- mutex_unlock(&sbi->node_write);
+ up_write(&sbi->node_write);
f2fs_unlock_all(sbi);
}
static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
{
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
+ struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
nid_t last_nid = 0;
block_t start_blk;
struct page *cp_page;
* This avoids to conduct wrong roll-forward operations and uses
* metapages, so should be called prior to sync_meta_pages below.
*/
- discard_next_dnode(sbi);
+ discard_next_dnode(sbi, NEXT_FREE_BLKADDR(sbi, curseg));
/* Flush all the NAT/SIT pages */
- while (get_pages(sbi, F2FS_DIRTY_META))
+ while (get_pages(sbi, F2FS_DIRTY_META)) {
sync_meta_pages(sbi, META, LONG_MAX);
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+ }
next_free_nid(sbi, &last_nid);
/* wait for previous submitted node/meta pages writeback */
wait_on_all_pages_writeback(sbi);
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+
filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LONG_MAX);
filemap_fdatawait_range(META_MAPPING(sbi), 0, LONG_MAX);
/* Here, we only have one bio having CP pack */
sync_meta_pages(sbi, META_FLUSH, LONG_MAX);
- if (unlikely(!is_set_ckpt_flags(ckpt, CP_ERROR_FLAG))) {
- clear_prefree_segments(sbi);
- F2FS_RESET_SB_DIRT(sbi);
- }
+ release_dirty_inode(sbi);
+
+ if (unlikely(f2fs_cp_error(sbi)))
+ return;
+
+ clear_prefree_segments(sbi);
+ F2FS_RESET_SB_DIRT(sbi);
}
/*
- * We guarantee that this checkpoint procedure should not fail.
+ * We guarantee that this checkpoint procedure will not fail.
*/
void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
{
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "start block_ops");
mutex_lock(&sbi->cp_mutex);
- block_operations(sbi);
+
+ if (!sbi->s_dirty)
+ goto out;
+ if (unlikely(f2fs_cp_error(sbi)))
+ goto out;
+ if (block_operations(sbi))
+ goto out;
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish block_ops");
do_checkpoint(sbi, is_umount);
unblock_operations(sbi);
- mutex_unlock(&sbi->cp_mutex);
-
stat_inc_cp_count(sbi->stat_info);
+out:
+ mutex_unlock(&sbi->cp_mutex);
trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint");
}
-void init_orphan_info(struct f2fs_sb_info *sbi)
+void init_ino_entry_info(struct f2fs_sb_info *sbi)
{
- spin_lock_init(&sbi->orphan_inode_lock);
- INIT_LIST_HEAD(&sbi->orphan_inode_list);
- sbi->n_orphans = 0;
+ int i;
+
+ for (i = 0; i < MAX_INO_ENTRY; i++) {
+ INIT_RADIX_TREE(&sbi->ino_root[i], GFP_ATOMIC);
+ spin_lock_init(&sbi->ino_lock[i]);
+ INIT_LIST_HEAD(&sbi->ino_list[i]);
+ }
+
/*
* considering 512 blocks in a segment 8 blocks are needed for cp
* and log segment summaries. Remaining blocks are used to keep
* orphan entries with the limitation one reserved segment
* for cp pack we can have max 1020*504 orphan entries
*/
+ sbi->n_orphans = 0;
sbi->max_orphans = (sbi->blocks_per_seg - 2 - NR_CURSEG_TYPE)
* F2FS_ORPHANS_PER_BLOCK;
}
int __init create_checkpoint_caches(void)
{
- orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry",
- sizeof(struct orphan_inode_entry));
- if (!orphan_entry_slab)
+ ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry",
+ sizeof(struct ino_entry));
+ if (!ino_entry_slab)
return -ENOMEM;
inode_entry_slab = f2fs_kmem_cache_create("f2fs_dirty_dir_entry",
sizeof(struct dir_inode_entry));
if (!inode_entry_slab) {
- kmem_cache_destroy(orphan_entry_slab);
+ kmem_cache_destroy(ino_entry_slab);
return -ENOMEM;
}
return 0;
void destroy_checkpoint_caches(void)
{
- kmem_cache_destroy(orphan_entry_slab);
+ kmem_cache_destroy(ino_entry_slab);
kmem_cache_destroy(inode_entry_slab);
}
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / blobdiff