aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ext4
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ext4.h2
-rw-r--r--fs/ext4/inode.c27
-rw-r--r--fs/ext4/mballoc.c32
-rw-r--r--fs/ext4/migrate.c8
-rw-r--r--fs/ext4/super.c11
5 files changed, 53 insertions, 27 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index aafc9eba1c25..b0c87dce66a3 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -868,7 +868,7 @@ static inline unsigned ext4_rec_len_from_disk(__le16 dlen)
{
unsigned len = le16_to_cpu(dlen);
- if (len == EXT4_MAX_REC_LEN)
+ if (len == EXT4_MAX_REC_LEN || len == 0)
return 1 << 16;
return len;
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 03ba20be1329..cbd2ca99d113 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -47,8 +47,10 @@
static inline int ext4_begin_ordered_truncate(struct inode *inode,
loff_t new_size)
{
- return jbd2_journal_begin_ordered_truncate(&EXT4_I(inode)->jinode,
- new_size);
+ return jbd2_journal_begin_ordered_truncate(
+ EXT4_SB(inode->i_sb)->s_journal,
+ &EXT4_I(inode)->jinode,
+ new_size);
}
static void ext4_invalidatepage(struct page *page, unsigned long offset);
@@ -2437,6 +2439,7 @@ static int ext4_da_writepages(struct address_space *mapping,
int no_nrwrite_index_update;
int pages_written = 0;
long pages_skipped;
+ int range_cyclic, cycled = 1, io_done = 0;
int needed_blocks, ret = 0, nr_to_writebump = 0;
struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
@@ -2488,9 +2491,15 @@ static int ext4_da_writepages(struct address_space *mapping,
if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
range_whole = 1;
- if (wbc->range_cyclic)
+ range_cyclic = wbc->range_cyclic;
+ if (wbc->range_cyclic) {
index = mapping->writeback_index;
- else
+ if (index)
+ cycled = 0;
+ wbc->range_start = index << PAGE_CACHE_SHIFT;
+ wbc->range_end = LLONG_MAX;
+ wbc->range_cyclic = 0;
+ } else
index = wbc->range_start >> PAGE_CACHE_SHIFT;
mpd.wbc = wbc;
@@ -2504,6 +2513,7 @@ static int ext4_da_writepages(struct address_space *mapping,
wbc->no_nrwrite_index_update = 1;
pages_skipped = wbc->pages_skipped;
+retry:
while (!ret && wbc->nr_to_write > 0) {
/*
@@ -2546,6 +2556,7 @@ static int ext4_da_writepages(struct address_space *mapping,
pages_written += mpd.pages_written;
wbc->pages_skipped = pages_skipped;
ret = 0;
+ io_done = 1;
} else if (wbc->nr_to_write)
/*
* There is no more writeout needed
@@ -2554,6 +2565,13 @@ static int ext4_da_writepages(struct address_space *mapping,
*/
break;
}
+ if (!io_done && !cycled) {
+ cycled = 1;
+ index = 0;
+ wbc->range_start = index << PAGE_CACHE_SHIFT;
+ wbc->range_end = mapping->writeback_index - 1;
+ goto retry;
+ }
if (pages_skipped != wbc->pages_skipped)
printk(KERN_EMERG "This should not happen leaving %s "
"with nr_to_write = %ld ret = %d\n",
@@ -2561,6 +2579,7 @@ static int ext4_da_writepages(struct address_space *mapping,
/* Update index */
index += pages_written;
+ wbc->range_cyclic = range_cyclic;
if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
/*
* set the writeback_index so that range_cyclic
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index deba54f6cbed..4415beeb0b62 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3693,6 +3693,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
pa->pa_free = pa->pa_len;
atomic_set(&pa->pa_count, 1);
spin_lock_init(&pa->pa_lock);
+ INIT_LIST_HEAD(&pa->pa_inode_list);
+ INIT_LIST_HEAD(&pa->pa_group_list);
pa->pa_deleted = 0;
pa->pa_linear = 0;
@@ -3755,6 +3757,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
atomic_set(&pa->pa_count, 1);
spin_lock_init(&pa->pa_lock);
INIT_LIST_HEAD(&pa->pa_inode_list);
+ INIT_LIST_HEAD(&pa->pa_group_list);
pa->pa_deleted = 0;
pa->pa_linear = 1;
@@ -4476,23 +4479,26 @@ static int ext4_mb_release_context(struct ext4_allocation_context *ac)
pa->pa_free -= ac->ac_b_ex.fe_len;
pa->pa_len -= ac->ac_b_ex.fe_len;
spin_unlock(&pa->pa_lock);
- /*
- * We want to add the pa to the right bucket.
- * Remove it from the list and while adding
- * make sure the list to which we are adding
- * doesn't grow big.
- */
- if (likely(pa->pa_free)) {
- spin_lock(pa->pa_obj_lock);
- list_del_rcu(&pa->pa_inode_list);
- spin_unlock(pa->pa_obj_lock);
- ext4_mb_add_n_trim(ac);
- }
}
- ext4_mb_put_pa(ac, ac->ac_sb, pa);
}
if (ac->alloc_semp)
up_read(ac->alloc_semp);
+ if (pa) {
+ /*
+ * We want to add the pa to the right bucket.
+ * Remove it from the list and while adding
+ * make sure the list to which we are adding
+ * doesn't grow big. We need to release
+ * alloc_semp before calling ext4_mb_add_n_trim()
+ */
+ if (pa->pa_linear && likely(pa->pa_free)) {
+ spin_lock(pa->pa_obj_lock);
+ list_del_rcu(&pa->pa_inode_list);
+ spin_unlock(pa->pa_obj_lock);
+ ext4_mb_add_n_trim(ac);
+ }
+ ext4_mb_put_pa(ac, ac->ac_sb, pa);
+ }
if (ac->ac_bitmap_page)
page_cache_release(ac->ac_bitmap_page);
if (ac->ac_buddy_page)
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 734abca25e35..fe64d9f79852 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -481,7 +481,7 @@ int ext4_ext_migrate(struct inode *inode)
+ 1);
if (IS_ERR(handle)) {
retval = PTR_ERR(handle);
- goto err_out;
+ return retval;
}
tmp_inode = ext4_new_inode(handle,
inode->i_sb->s_root->d_inode,
@@ -489,8 +489,7 @@ int ext4_ext_migrate(struct inode *inode)
if (IS_ERR(tmp_inode)) {
retval = -ENOMEM;
ext4_journal_stop(handle);
- tmp_inode = NULL;
- goto err_out;
+ return retval;
}
i_size_write(tmp_inode, i_size_read(inode));
/*
@@ -618,8 +617,7 @@ err_out:
ext4_journal_stop(handle);
- if (tmp_inode)
- iput(tmp_inode);
+ iput(tmp_inode);
return retval;
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e5f06a5f045e..a5732c58f676 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3046,14 +3046,17 @@ static void ext4_write_super(struct super_block *sb)
static int ext4_sync_fs(struct super_block *sb, int wait)
{
int ret = 0;
+ tid_t target;
trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
sb->s_dirt = 0;
if (EXT4_SB(sb)->s_journal) {
- if (wait)
- ret = ext4_force_commit(sb);
- else
- jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
+ if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal,
+ &target)) {
+ if (wait)
+ jbd2_log_wait_commit(EXT4_SB(sb)->s_journal,
+ target);
+ }
} else {
ext4_commit_super(sb, EXT4_SB(sb)->s_es, wait);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.