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-rw-r--r--fs/btrfs/backref.c34
-rw-r--r--fs/btrfs/ctree.c10
-rw-r--r--fs/btrfs/ctree.h6
-rw-r--r--fs/btrfs/disk-io.c27
-rw-r--r--fs/btrfs/disk-io.h3
-rw-r--r--fs/btrfs/extent-tree.c25
-rw-r--r--fs/btrfs/ioctl.c19
-rw-r--r--fs/btrfs/send.c62
-rw-r--r--fs/dax.c6
-rw-r--r--fs/ext4/ext4.h6
-rw-r--r--fs/ext4/extents.c17
-rw-r--r--fs/ext4/file.c7
-rw-r--r--fs/ext4/inode.c3
-rw-r--r--fs/ext4/ioctl.c2
-rw-r--r--fs/ext4/mballoc.c2
-rw-r--r--fs/ext4/namei.c5
-rw-r--r--fs/ext4/resize.c1
-rw-r--r--fs/ext4/super.c63
-rw-r--r--fs/ext4/xattr.c2
-rw-r--r--fs/fs-writeback.c11
-rw-r--r--fs/hugetlbfs/inode.c7
-rw-r--r--fs/jbd2/journal.c53
-rw-r--r--fs/jbd2/revoke.c32
-rw-r--r--fs/jbd2/transaction.c8
-rw-r--r--fs/ocfs2/export.c30
25 files changed, 329 insertions, 112 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 78556447e1d5..ef66db38cedb 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1454,8 +1454,8 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
* callers (such as fiemap) which want to know whether the extent is
* shared but do not need a ref count.
*
- * This attempts to allocate a transaction in order to account for
- * delayed refs, but continues on even when the alloc fails.
+ * This attempts to attach to the running transaction in order to account for
+ * delayed refs, but continues on even when no running transaction exists.
*
* Return: 0 if extent is not shared, 1 if it is shared, < 0 on error.
*/
@@ -1478,13 +1478,16 @@ int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr)
tmp = ulist_alloc(GFP_NOFS);
roots = ulist_alloc(GFP_NOFS);
if (!tmp || !roots) {
- ulist_free(tmp);
- ulist_free(roots);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
}
- trans = btrfs_join_transaction(root);
+ trans = btrfs_attach_transaction(root);
if (IS_ERR(trans)) {
+ if (PTR_ERR(trans) != -ENOENT && PTR_ERR(trans) != -EROFS) {
+ ret = PTR_ERR(trans);
+ goto out;
+ }
trans = NULL;
down_read(&fs_info->commit_root_sem);
} else {
@@ -1517,6 +1520,7 @@ int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr)
} else {
up_read(&fs_info->commit_root_sem);
}
+out:
ulist_free(tmp);
ulist_free(roots);
return ret;
@@ -1906,13 +1910,19 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
extent_item_objectid);
if (!search_commit_root) {
- trans = btrfs_join_transaction(fs_info->extent_root);
- if (IS_ERR(trans))
- return PTR_ERR(trans);
+ trans = btrfs_attach_transaction(fs_info->extent_root);
+ if (IS_ERR(trans)) {
+ if (PTR_ERR(trans) != -ENOENT &&
+ PTR_ERR(trans) != -EROFS)
+ return PTR_ERR(trans);
+ trans = NULL;
+ }
+ }
+
+ if (trans)
btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem);
- } else {
+ else
down_read(&fs_info->commit_root_sem);
- }
ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid,
tree_mod_seq_elem.seq, &refs,
@@ -1945,7 +1955,7 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
free_leaf_list(refs);
out:
- if (!search_commit_root) {
+ if (trans) {
btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
btrfs_end_transaction(trans);
} else {
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 5a6c39b44c84..7672932aa5b4 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2401,6 +2401,16 @@ read_block_for_search(struct btrfs_root *root, struct btrfs_path *p,
if (tmp) {
/* first we do an atomic uptodate check */
if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) {
+ /*
+ * Do extra check for first_key, eb can be stale due to
+ * being cached, read from scrub, or have multiple
+ * parents (shared tree blocks).
+ */
+ if (btrfs_verify_level_key(fs_info, tmp,
+ parent_level - 1, &first_key, gen)) {
+ free_extent_buffer(tmp);
+ return -EUCLEAN;
+ }
*eb_ret = tmp;
return 0;
}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 7a2a2621f0d9..9019265a2bf9 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1316,6 +1316,12 @@ struct btrfs_root {
* manipulation with the read-only status via SUBVOL_SETFLAGS
*/
int send_in_progress;
+ /*
+ * Number of currently running deduplication operations that have a
+ * destination inode belonging to this root. Protected by the lock
+ * root_item_lock.
+ */
+ int dedupe_in_progress;
struct btrfs_subvolume_writers *subv_writers;
atomic_t will_be_snapshotted;
atomic_t snapshot_force_cow;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 888d72dda794..90a3c50d751b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -414,9 +414,9 @@ static int btrfs_check_super_csum(struct btrfs_fs_info *fs_info,
return ret;
}
-static int verify_level_key(struct btrfs_fs_info *fs_info,
- struct extent_buffer *eb, int level,
- struct btrfs_key *first_key, u64 parent_transid)
+int btrfs_verify_level_key(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb, int level,
+ struct btrfs_key *first_key, u64 parent_transid)
{
int found_level;
struct btrfs_key found_key;
@@ -493,8 +493,8 @@ static int btree_read_extent_buffer_pages(struct btrfs_fs_info *fs_info,
if (verify_parent_transid(io_tree, eb,
parent_transid, 0))
ret = -EIO;
- else if (verify_level_key(fs_info, eb, level,
- first_key, parent_transid))
+ else if (btrfs_verify_level_key(fs_info, eb, level,
+ first_key, parent_transid))
ret = -EUCLEAN;
else
break;
@@ -1017,13 +1017,18 @@ void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr)
{
struct extent_buffer *buf = NULL;
struct inode *btree_inode = fs_info->btree_inode;
+ int ret;
buf = btrfs_find_create_tree_block(fs_info, bytenr);
if (IS_ERR(buf))
return;
- read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
- buf, WAIT_NONE, 0);
- free_extent_buffer(buf);
+
+ ret = read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree, buf,
+ WAIT_NONE, 0);
+ if (ret < 0)
+ free_extent_buffer_stale(buf);
+ else
+ free_extent_buffer(buf);
}
int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
@@ -1043,12 +1048,12 @@ int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK,
mirror_num);
if (ret) {
- free_extent_buffer(buf);
+ free_extent_buffer_stale(buf);
return ret;
}
if (test_bit(EXTENT_BUFFER_CORRUPT, &buf->bflags)) {
- free_extent_buffer(buf);
+ free_extent_buffer_stale(buf);
return -EIO;
} else if (extent_buffer_uptodate(buf)) {
*eb = buf;
@@ -1102,7 +1107,7 @@ struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
ret = btree_read_extent_buffer_pages(fs_info, buf, parent_transid,
level, first_key);
if (ret) {
- free_extent_buffer(buf);
+ free_extent_buffer_stale(buf);
return ERR_PTR(ret);
}
return buf;
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 987a64bc0c66..67a9fe2d29c7 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -39,6 +39,9 @@ static inline u64 btrfs_sb_offset(int mirror)
struct btrfs_device;
struct btrfs_fs_devices;
+int btrfs_verify_level_key(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb, int level,
+ struct btrfs_key *first_key, u64 parent_transid);
struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
u64 parent_transid, int level,
struct btrfs_key *first_key);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 1b68700bc1c5..a19bbfce449e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -11192,9 +11192,9 @@ int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info,
* held back allocations.
*/
static int btrfs_trim_free_extents(struct btrfs_device *device,
- u64 minlen, u64 *trimmed)
+ struct fstrim_range *range, u64 *trimmed)
{
- u64 start = 0, len = 0;
+ u64 start = range->start, len = 0;
int ret;
*trimmed = 0;
@@ -11237,8 +11237,8 @@ static int btrfs_trim_free_extents(struct btrfs_device *device,
if (!trans)
up_read(&fs_info->commit_root_sem);
- ret = find_free_dev_extent_start(trans, device, minlen, start,
- &start, &len);
+ ret = find_free_dev_extent_start(trans, device, range->minlen,
+ start, &start, &len);
if (trans) {
up_read(&fs_info->commit_root_sem);
btrfs_put_transaction(trans);
@@ -11251,6 +11251,16 @@ static int btrfs_trim_free_extents(struct btrfs_device *device,
break;
}
+ /* If we are out of the passed range break */
+ if (start > range->start + range->len - 1) {
+ mutex_unlock(&fs_info->chunk_mutex);
+ ret = 0;
+ break;
+ }
+
+ start = max(range->start, start);
+ len = min(range->len, len);
+
ret = btrfs_issue_discard(device->bdev, start, len, &bytes);
mutex_unlock(&fs_info->chunk_mutex);
@@ -11260,6 +11270,10 @@ static int btrfs_trim_free_extents(struct btrfs_device *device,
start += len;
*trimmed += bytes;
+ /* We've trimmed enough */
+ if (*trimmed >= range->len)
+ break;
+
if (fatal_signal_pending(current)) {
ret = -ERESTARTSYS;
break;
@@ -11343,8 +11357,7 @@ int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range)
mutex_lock(&fs_info->fs_devices->device_list_mutex);
devices = &fs_info->fs_devices->devices;
list_for_each_entry(device, devices, dev_list) {
- ret = btrfs_trim_free_extents(device, range->minlen,
- &group_trimmed);
+ ret = btrfs_trim_free_extents(device, range, &group_trimmed);
if (ret) {
dev_failed++;
dev_ret = ret;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 1d64a6b8e413..679303bf8e74 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3275,6 +3275,19 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
int ret;
int num_pages = PAGE_ALIGN(BTRFS_MAX_DEDUPE_LEN) >> PAGE_SHIFT;
u64 i, tail_len, chunk_count;
+ struct btrfs_root *root_dst = BTRFS_I(dst)->root;
+
+ spin_lock(&root_dst->root_item_lock);
+ if (root_dst->send_in_progress) {
+ btrfs_warn_rl(root_dst->fs_info,
+"cannot deduplicate to root %llu while send operations are using it (%d in progress)",
+ root_dst->root_key.objectid,
+ root_dst->send_in_progress);
+ spin_unlock(&root_dst->root_item_lock);
+ return -EAGAIN;
+ }
+ root_dst->dedupe_in_progress++;
+ spin_unlock(&root_dst->root_item_lock);
/* don't make the dst file partly checksummed */
if ((BTRFS_I(src)->flags & BTRFS_INODE_NODATASUM) !=
@@ -3293,7 +3306,7 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
ret = btrfs_extent_same_range(src, loff, BTRFS_MAX_DEDUPE_LEN,
dst, dst_loff);
if (ret)
- return ret;
+ goto out;
loff += BTRFS_MAX_DEDUPE_LEN;
dst_loff += BTRFS_MAX_DEDUPE_LEN;
@@ -3302,6 +3315,10 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
if (tail_len > 0)
ret = btrfs_extent_same_range(src, loff, tail_len, dst,
dst_loff);
+out:
+ spin_lock(&root_dst->root_item_lock);
+ root_dst->dedupe_in_progress--;
+ spin_unlock(&root_dst->root_item_lock);
return ret;
}
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 7ea2d6b1f170..19b00b1668ed 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -6579,6 +6579,38 @@ commit_trans:
return btrfs_commit_transaction(trans);
}
+/*
+ * Make sure any existing dellaloc is flushed for any root used by a send
+ * operation so that we do not miss any data and we do not race with writeback
+ * finishing and changing a tree while send is using the tree. This could
+ * happen if a subvolume is in RW mode, has delalloc, is turned to RO mode and
+ * a send operation then uses the subvolume.
+ * After flushing delalloc ensure_commit_roots_uptodate() must be called.
+ */
+static int flush_delalloc_roots(struct send_ctx *sctx)
+{
+ struct btrfs_root *root = sctx->parent_root;
+ int ret;
+ int i;
+
+ if (root) {
+ ret = btrfs_start_delalloc_snapshot(root);
+ if (ret)
+ return ret;
+ btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);
+ }
+
+ for (i = 0; i < sctx->clone_roots_cnt; i++) {
+ root = sctx->clone_roots[i].root;
+ ret = btrfs_start_delalloc_snapshot(root);
+ if (ret)
+ return ret;
+ btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);
+ }
+
+ return 0;
+}
+
static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
{
spin_lock(&root->root_item_lock);
@@ -6594,6 +6626,13 @@ static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
spin_unlock(&root->root_item_lock);
}
+static void dedupe_in_progress_warn(const struct btrfs_root *root)
+{
+ btrfs_warn_rl(root->fs_info,
+"cannot use root %llu for send while deduplications on it are in progress (%d in progress)",
+ root->root_key.objectid, root->dedupe_in_progress);
+}
+
long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
{
int ret = 0;
@@ -6617,6 +6656,11 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
* making it RW. This also protects against deletion.
*/
spin_lock(&send_root->root_item_lock);
+ if (btrfs_root_readonly(send_root) && send_root->dedupe_in_progress) {
+ dedupe_in_progress_warn(send_root);
+ spin_unlock(&send_root->root_item_lock);
+ return -EAGAIN;
+ }
send_root->send_in_progress++;
spin_unlock(&send_root->root_item_lock);
@@ -6751,6 +6795,13 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
ret = -EPERM;
goto out;
}
+ if (clone_root->dedupe_in_progress) {
+ dedupe_in_progress_warn(clone_root);
+ spin_unlock(&clone_root->root_item_lock);
+ srcu_read_unlock(&fs_info->subvol_srcu, index);
+ ret = -EAGAIN;
+ goto out;
+ }
clone_root->send_in_progress++;
spin_unlock(&clone_root->root_item_lock);
srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -6785,6 +6836,13 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
ret = -EPERM;
goto out;
}
+ if (sctx->parent_root->dedupe_in_progress) {
+ dedupe_in_progress_warn(sctx->parent_root);
+ spin_unlock(&sctx->parent_root->root_item_lock);
+ srcu_read_unlock(&fs_info->subvol_srcu, index);
+ ret = -EAGAIN;
+ goto out;
+ }
spin_unlock(&sctx->parent_root->root_item_lock);
srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -6803,6 +6861,10 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
NULL);
sort_clone_roots = 1;
+ ret = flush_delalloc_roots(sctx);
+ if (ret)
+ goto out;
+
ret = ensure_commit_roots_uptodate(sctx);
if (ret)
goto out;
diff --git a/fs/dax.c b/fs/dax.c
index 827ee143413e..8eb3e8c2b4bd 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1577,8 +1577,7 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
}
trace_dax_pmd_insert_mapping(inode, vmf, PMD_SIZE, pfn, entry);
- result = vmf_insert_pfn_pmd(vma, vmf->address, vmf->pmd, pfn,
- write);
+ result = vmf_insert_pfn_pmd(vmf, pfn, write);
break;
case IOMAP_UNWRITTEN:
case IOMAP_HOLE:
@@ -1688,8 +1687,7 @@ dax_insert_pfn_mkwrite(struct vm_fault *vmf, pfn_t pfn, unsigned int order)
ret = vmf_insert_mixed_mkwrite(vmf->vma, vmf->address, pfn);
#ifdef CONFIG_FS_DAX_PMD
else if (order == PMD_ORDER)
- ret = vmf_insert_pfn_pmd(vmf->vma, vmf->address, vmf->pmd,
- pfn, true);
+ ret = vmf_insert_pfn_pmd(vmf, pfn, FAULT_FLAG_WRITE);
#endif
else
ret = VM_FAULT_FALLBACK;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 508a37ec9271..b8fde74ff76d 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1665,6 +1665,8 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */
#define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000
+extern void ext4_update_dynamic_rev(struct super_block *sb);
+
#define EXT4_FEATURE_COMPAT_FUNCS(name, flagname) \
static inline bool ext4_has_feature_##name(struct super_block *sb) \
{ \
@@ -1673,6 +1675,7 @@ static inline bool ext4_has_feature_##name(struct super_block *sb) \
} \
static inline void ext4_set_feature_##name(struct super_block *sb) \
{ \
+ ext4_update_dynamic_rev(sb); \
EXT4_SB(sb)->s_es->s_feature_compat |= \
cpu_to_le32(EXT4_FEATURE_COMPAT_##flagname); \
} \
@@ -1690,6 +1693,7 @@ static inline bool ext4_has_feature_##name(struct super_block *sb) \
} \
static inline void ext4_set_feature_##name(struct super_block *sb) \
{ \
+ ext4_update_dynamic_rev(sb); \
EXT4_SB(sb)->s_es->s_feature_ro_compat |= \
cpu_to_le32(EXT4_FEATURE_RO_COMPAT_##flagname); \
} \
@@ -1707,6 +1711,7 @@ static inline bool ext4_has_feature_##name(struct super_block *sb) \
} \
static inline void ext4_set_feature_##name(struct super_block *sb) \
{ \
+ ext4_update_dynamic_rev(sb); \
EXT4_SB(sb)->s_es->s_feature_incompat |= \
cpu_to_le32(EXT4_FEATURE_INCOMPAT_##flagname); \
} \
@@ -2675,7 +2680,6 @@ do { \
#endif
-extern void ext4_update_dynamic_rev(struct super_block *sb);
extern int ext4_update_compat_feature(handle_t *handle, struct super_block *sb,
__u32 compat);
extern int ext4_update_rocompat_feature(handle_t *handle,
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 252bbbb5a2f4..cd00b19746bd 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1035,6 +1035,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
__le32 border;
ext4_fsblk_t *ablocks = NULL; /* array of allocated blocks */
int err = 0;
+ size_t ext_size = 0;
/* make decision: where to split? */
/* FIXME: now decision is simplest: at current extent */
@@ -1126,6 +1127,10 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
le16_add_cpu(&neh->eh_entries, m);
}
+ /* zero out unused area in the extent block */
+ ext_size = sizeof(struct ext4_extent_header) +
+ sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries);
+ memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
@@ -1205,6 +1210,11 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
sizeof(struct ext4_extent_idx) * m);
le16_add_cpu(&neh->eh_entries, m);
}
+ /* zero out unused area in the extent block */
+ ext_size = sizeof(struct ext4_extent_header) +
+ (sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries));
+ memset(bh->b_data + ext_size, 0,
+ inode->i_sb->s_blocksize - ext_size);
ext4_extent_block_csum_set(inode, neh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
@@ -1270,6 +1280,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
ext4_fsblk_t newblock, goal = 0;
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
int err = 0;
+ size_t ext_size = 0;
/* Try to prepend new index to old one */
if (ext_depth(inode))
@@ -1295,9 +1306,11 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
goto out;
}
+ ext_size = sizeof(EXT4_I(inode)->i_data);
/* move top-level index/leaf into new block */
- memmove(bh->b_data, EXT4_I(inode)->i_data,
- sizeof(EXT4_I(inode)->i_data));
+ memmove(bh->b_data, EXT4_I(inode)->i_data, ext_size);
+ /* zero out unused area in the extent block */
+ memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
/* set size of new block */
neh = ext_block_hdr(bh);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 98ec11f69cd4..2c5baa5e8291 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -264,6 +264,13 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
}
ret = __generic_file_write_iter(iocb, from);
+ /*
+ * Unaligned direct AIO must be the only IO in flight. Otherwise
+ * overlapping aligned IO after unaligned might result in data
+ * corruption.
+ */
+ if (ret == -EIOCBQUEUED && unaligned_aio)
+ ext4_unwritten_wait(inode);
inode_unlock(inode);
if (ret > 0)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 34d7e0703cc6..878f8b5dd39f 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5351,7 +5351,6 @@ static int ext4_do_update_inode(handle_t *handle,
err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
if (err)
goto out_brelse;
- ext4_update_dynamic_rev(sb);
ext4_set_feature_large_file(sb);
ext4_handle_sync(handle);
err = ext4_handle_dirty_super(handle, sb);
@@ -6002,7 +6001,7 @@ int ext4_expand_extra_isize(struct inode *inode,
ext4_write_lock_xattr(inode, &no_expand);
- BUFFER_TRACE(iloc.bh, "get_write_access");
+ BUFFER_TRACE(iloc->bh, "get_write_access");
error = ext4_journal_get_write_access(handle, iloc->bh);
if (error) {
brelse(iloc->bh);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 5f24fdc140ad..53d57cdf3c4d 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -977,7 +977,7 @@ mext_out:
if (err == 0)
err = err2;
mnt_drop_write_file(filp);
- if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
+ if (!err && (o_group < EXT4_SB(sb)->s_groups_count) &&
ext4_has_group_desc_csum(sb) &&
test_opt(sb, INIT_INODE_TABLE))
err = ext4_register_li_request(sb, o_group);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e2248083cdca..459450e59a88 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1539,7 +1539,7 @@ static int mb_find_extent(struct ext4_buddy *e4b, int block,
ex->fe_len += 1 << order;
}
- if (ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3))) {
+ if (ex->fe_start + ex->fe_len > EXT4_CLUSTERS_PER_GROUP(e4b->bd_sb)) {
/* Should never happen! (but apparently sometimes does?!?) */
WARN_ON(1);
ext4_error(e4b->bd_sb, "corruption or bug in mb_find_extent "
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 2b928eb07fa2..03c623407648 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -871,12 +871,15 @@ static void dx_release(struct dx_frame *frames)
{
struct dx_root_info *info;
int i;
+ unsigned int indirect_levels;
if (frames[0].bh == NULL)
return;
info = &((struct dx_root *)frames[0].bh->b_data)->info;
- for (i = 0; i <= info->indirect_levels; i++) {
+ /* save local copy, "info" may be freed after brelse() */
+ indirect_levels = info->indirect_levels;
+ for (i = 0; i <= indirect_levels; i++) {
if (frames[i].bh == NULL)
break;
brelse(frames[i].bh);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index e7ae26e36c9c..4d5c0fc9d23a 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -874,6 +874,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
if (unlikely(err)) {
ext4_std_error(sb, err);
+ iloc.bh = NULL;
goto errout;
}
brelse(dind);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b9bca7298f96..7b22c01b1cdb 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -698,7 +698,7 @@ void __ext4_abort(struct super_block *sb, const char *function,
jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
save_error_info(sb, function, line);
}
- if (test_opt(sb, ERRORS_PANIC)) {
+ if (test_opt(sb, ERRORS_PANIC) && !system_going_down()) {
if (EXT4_SB(sb)->s_journal &&
!(EXT4_SB(sb)->s_journal->j_flags & JBD2_REC_ERR))
return;
@@ -2259,7 +2259,6 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);
le16_add_cpu(&es->s_mnt_count, 1);
ext4_update_tstamp(es, s_mtime);
- ext4_update_dynamic_rev(sb);
if (sbi->s_journal)
ext4_set_feature_journal_needs_recovery(sb);
@@ -3514,6 +3513,37 @@ int ext4_calculate_overhead(struct super_block *sb)
return 0;
}
+static void ext4_clamp_want_extra_isize(struct super_block *sb)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+
+ /* determine the minimum size of new large inodes, if present */
+ if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
+ sbi->s_want_extra_isize == 0) {
+ sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+ EXT4_GOOD_OLD_INODE_SIZE;
+ if (ext4_has_feature_extra_isize(sb)) {
+ if (sbi->s_want_extra_isize <
+ le16_to_cpu(es->s_want_extra_isize))
+ sbi->s_want_extra_isize =
+ le16_to_cpu(es->s_want_extra_isize);
+ if (sbi->s_want_extra_isize <
+ le16_to_cpu(es->s_min_extra_isize))
+ sbi->s_want_extra_isize =
+ le16_to_cpu(es->s_min_extra_isize);
+ }
+ }
+ /* Check if enough inode space is available */
+ if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
+ sbi->s_inode_size) {
+ sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+ EXT4_GOOD_OLD_INODE_SIZE;
+ ext4_msg(sb, KERN_INFO,
+ "required extra inode space not available");
+ }
+}
+
static void ext4_set_resv_clusters(struct super_block *sb)
{
ext4_fsblk_t resv_clusters;
@@ -4239,7 +4269,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"data=, fs mounted w/o journal");
goto failed_mount_wq;
}
- sbi->s_def_mount_opt &= EXT4_MOUNT_JOURNAL_CHECKSUM;
+ sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM;
clear_opt(sb, JOURNAL_CHECKSUM);
clear_opt(sb, DATA_FLAGS);
sbi->s_journal = NULL;
@@ -4388,30 +4418,7 @@ no_journal:
} else if (ret)
goto failed_mount4a;
- /* determine the minimum size of new large inodes, if present */
- if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
- sbi->s_want_extra_isize == 0) {
- sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
- EXT4_GOOD_OLD_INODE_SIZE;
- if (ext4_has_feature_extra_isize(sb)) {
- if (sbi->s_want_extra_isize <
- le16_to_cpu(es->s_want_extra_isize))
- sbi->s_want_extra_isize =
- le16_to_cpu(es->s_want_extra_isize);
- if (sbi->s_want_extra_isize <
- le16_to_cpu(es->s_min_extra_isize))
- sbi->s_want_extra_isize =
- le16_to_cpu(es->s_min_extra_isize);
- }
- }
- /* Check if enough inode space is available */
- if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
- sbi->s_inode_size) {
- sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
- EXT4_GOOD_OLD_INODE_SIZE;
- ext4_msg(sb, KERN_INFO, "required extra inode space not"
- "available");
- }
+ ext4_clamp_want_extra_isize(sb);
ext4_set_resv_clusters(sb);
@@ -5195,6 +5202,8 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
goto restore_opts;
}
+ ext4_clamp_want_extra_isize(sb);
+
if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^
test_opt(sb, JOURNAL_CHECKSUM)) {
ext4_msg(sb, KERN_ERR, "changing journal_checksum "
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index dc82e7757f67..491f9ee4040e 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1696,7 +1696,7 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
/* No failures allowed past this point. */
- if (!s->not_found && here->e_value_size && here->e_value_offs) {
+ if (!s->not_found && here->e_value_size && !here->e_value_inum) {
/* Remove the old value. */
void *first_val = s->base + min_offs;
size_t offs = le16_to_cpu(here->e_value_offs);
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 36855c1f8daf..b16645b417d9 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -523,8 +523,6 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
isw->inode = inode;
- atomic_inc(&isw_nr_in_flight);
-
/*
* In addition to synchronizing among switchers, I_WB_SWITCH tells
* the RCU protected stat update paths to grab the i_page
@@ -532,6 +530,9 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
* Let's continue after I_WB_SWITCH is guaranteed to be visible.
*/
call_rcu(&isw->rcu_head, inode_switch_wbs_rcu_fn);
+
+ atomic_inc(&isw_nr_in_flight);
+
goto out_unlock;
out_free:
@@ -901,7 +902,11 @@ restart:
void cgroup_writeback_umount(void)
{
if (atomic_read(&isw_nr_in_flight)) {
- synchronize_rcu();
+ /*
+ * Use rcu_barrier() to wait for all pending callbacks to
+ * ensure that all in-flight wb switches are in the workqueue.
+ */
+ rcu_barrier();
flush_workqueue(isw_wq);
}
}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a3a3d256fb0e..7a24f91af29e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -426,9 +426,7 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
u32 hash;
index = page->index;
- hash = hugetlb_fault_mutex_hash(h, current->mm,
- &pseudo_vma,
- mapping, index, 0);
+ hash = hugetlb_fault_mutex_hash(h, mapping, index, 0);
mutex_lock(&hugetlb_fault_mutex_table[hash]);
/*
@@ -625,8 +623,7 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset,
addr = index * hpage_size;
/* mutex taken here, fault path and hole punch */
- hash = hugetlb_fault_mutex_hash(h, mm, &pseudo_vma, mapping,
- index, addr);
+ hash = hugetlb_fault_mutex_hash(h, mapping, index, addr);
mutex_lock(&hugetlb_fault_mutex_table[hash]);
/* See if already present in mapping to avoid alloc/free */
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 88f2a49338a1..e9cf88f0bc29 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1366,6 +1366,10 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags)
journal_superblock_t *sb = journal->j_superblock;
int ret;
+ /* Buffer got discarded which means block device got invalidated */
+ if (!buffer_mapped(bh))
+ return -EIO;
+
trace_jbd2_write_superblock(journal, write_flags);
if (!(journal->j_flags & JBD2_BARRIER))
write_flags &= ~(REQ_FUA | REQ_PREFLUSH);
@@ -2385,22 +2389,19 @@ static struct kmem_cache *jbd2_journal_head_cache;
static atomic_t nr_journal_heads = ATOMIC_INIT(0);
#endif
-static int jbd2_journal_init_journal_head_cache(void)
+static int __init jbd2_journal_init_journal_head_cache(void)
{
- int retval;
-
- J_ASSERT(jbd2_journal_head_cache == NULL);
+ J_ASSERT(!jbd2_journal_head_cache);
jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
sizeof(struct journal_head),
0, /* offset */
SLAB_TEMPORARY | SLAB_TYPESAFE_BY_RCU,
NULL); /* ctor */
- retval = 0;
if (!jbd2_journal_head_cache) {
- retval = -ENOMEM;
printk(KERN_EMERG "JBD2: no memory for journal_head cache\n");
+ return -ENOMEM;
}
- return retval;
+ return 0;
}
static void jbd2_journal_destroy_journal_head_cache(void)
@@ -2646,28 +2647,38 @@ static void __exit jbd2_remove_jbd_stats_proc_entry(void)
struct kmem_cache *jbd2_handle_cache, *jbd2_inode_cache;
+static int __init jbd2_journal_init_inode_cache(void)
+{
+ J_ASSERT(!jbd2_inode_cache);
+ jbd2_inode_cache = KMEM_CACHE(jbd2_inode, 0);
+ if (!jbd2_inode_cache) {
+ pr_emerg("JBD2: failed to create inode cache\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
static int __init jbd2_journal_init_handle_cache(void)
{
+ J_ASSERT(!jbd2_handle_cache);
jbd2_handle_cache = KMEM_CACHE(jbd2_journal_handle, SLAB_TEMPORARY);
- if (jbd2_handle_cache == NULL) {
+ if (!jbd2_handle_cache) {
printk(KERN_EMERG "JBD2: failed to create handle cache\n");
return -ENOMEM;
}
- jbd2_inode_cache = KMEM_CACHE(jbd2_inode, 0);
- if (jbd2_inode_cache == NULL) {
- printk(KERN_EMERG "JBD2: failed to create inode cache\n");
- kmem_cache_destroy(jbd2_handle_cache);
- return -ENOMEM;
- }
return 0;
}
+static void jbd2_journal_destroy_inode_cache(void)
+{
+ kmem_cache_destroy(jbd2_inode_cache);
+ jbd2_inode_cache = NULL;
+}
+
static void jbd2_journal_destroy_handle_cache(void)
{
kmem_cache_destroy(jbd2_handle_cache);
jbd2_handle_cache = NULL;
- kmem_cache_destroy(jbd2_inode_cache);
- jbd2_inode_cache = NULL;
}
/*
@@ -2678,21 +2689,27 @@ static int __init journal_init_caches(void)
{
int ret;
- ret = jbd2_journal_init_revoke_caches();
+ ret = jbd2_journal_init_revoke_record_cache();
+ if (ret == 0)
+ ret = jbd2_journal_init_revoke_table_cache();
if (ret == 0)
ret = jbd2_journal_init_journal_head_cache();
if (ret == 0)
ret = jbd2_journal_init_handle_cache();
if (ret == 0)
+ ret = jbd2_journal_init_inode_cache();
+ if (ret == 0)
ret = jbd2_journal_init_transaction_cache();
return ret;
}
static void jbd2_journal_destroy_caches(void)
{
- jbd2_journal_destroy_revoke_caches();
+ jbd2_journal_destroy_revoke_record_cache();
+ jbd2_journal_destroy_revoke_table_cache();
jbd2_journal_destroy_journal_head_cache();
jbd2_journal_destroy_handle_cache();
+ jbd2_journal_destroy_inode_cache();
jbd2_journal_destroy_transaction_cache();
jbd2_journal_destroy_slabs();
}
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index a1143e57a718..69b9bc329964 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -178,33 +178,41 @@ static struct jbd2_revoke_record_s *find_revoke_record(journal_t *journal,
return NULL;
}
-void jbd2_journal_destroy_revoke_caches(void)
+void jbd2_journal_destroy_revoke_record_cache(void)
{
kmem_cache_destroy(jbd2_revoke_record_cache);
jbd2_revoke_record_cache = NULL;
+}
+
+void jbd2_journal_destroy_revoke_table_cache(void)
+{
kmem_cache_destroy(jbd2_revoke_table_cache);
jbd2_revoke_table_cache = NULL;
}
-int __init jbd2_journal_init_revoke_caches(void)
+int __init jbd2_journal_init_revoke_record_cache(void)
{
J_ASSERT(!jbd2_revoke_record_cache);
- J_ASSERT(!jbd2_revoke_table_cache);
-
jbd2_revoke_record_cache = KMEM_CACHE(jbd2_revoke_record_s,
SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY);
- if (!jbd2_revoke_record_cache)
- goto record_cache_failure;
+ if (!jbd2_revoke_record_cache) {
+ pr_emerg("JBD2: failed to create revoke_record cache\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+int __init jbd2_journal_init_revoke_table_cache(void)
+{
+ J_ASSERT(!jbd2_revoke_table_cache);
jbd2_revoke_table_cache = KMEM_CACHE(jbd2_revoke_table_s,
SLAB_TEMPORARY);
- if (!jbd2_revoke_table_cache)
- goto table_cache_failure;
- return 0;
-table_cache_failure:
- jbd2_journal_destroy_revoke_caches();
-record_cache_failure:
+ if (!jbd2_revoke_table_cache) {
+ pr_emerg("JBD2: failed to create revoke_table cache\n");
return -ENOMEM;
+ }
+ return 0;
}
static struct jbd2_revoke_table_s *jbd2_journal_init_revoke_table(int hash_size)
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index f0d8dabe1ff5..e9dded268a9b 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -42,9 +42,11 @@ int __init jbd2_journal_init_transaction_cache(void)
0,
SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
NULL);
- if (transaction_cache)
- return 0;
- return -ENOMEM;
+ if (!transaction_cache) {
+ pr_emerg("JBD2: failed to create transaction cache\n");
+ return -ENOMEM;
+ }
+ return 0;
}
void jbd2_journal_destroy_transaction_cache(void)
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index 4bf8d5854b27..af2888d23de3 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -148,16 +148,24 @@ static struct dentry *ocfs2_get_parent(struct dentry *child)
u64 blkno;
struct dentry *parent;
struct inode *dir = d_inode(child);
+ int set;
trace_ocfs2_get_parent(child, child->d_name.len, child->d_name.name,
(unsigned long long)OCFS2_I(dir)->ip_blkno);
+ status = ocfs2_nfs_sync_lock(OCFS2_SB(dir->i_sb), 1);
+ if (status < 0) {
+ mlog(ML_ERROR, "getting nfs sync lock(EX) failed %d\n", status);
+ parent = ERR_PTR(status);
+ goto bail;
+ }
+
status = ocfs2_inode_lock(dir, NULL, 0);
if (status < 0) {
if (status != -ENOENT)
mlog_errno(status);
parent = ERR_PTR(status);
- goto bail;
+ goto unlock_nfs_sync;
}
status = ocfs2_lookup_ino_from_name(dir, "..", 2, &blkno);
@@ -166,11 +174,31 @@ static struct dentry *ocfs2_get_parent(struct dentry *child)
goto bail_unlock;
}
+ status = ocfs2_test_inode_bit(OCFS2_SB(dir->i_sb), blkno, &set);
+ if (status < 0) {
+ if (status == -EINVAL) {
+ status = -ESTALE;
+ } else
+ mlog(ML_ERROR, "test inode bit failed %d\n", status);
+ parent = ERR_PTR(status);
+ goto bail_unlock;
+ }
+
+ trace_ocfs2_get_dentry_test_bit(status, set);
+ if (!set) {
+ status = -ESTALE;
+ parent = ERR_PTR(status);
+ goto bail_unlock;
+ }
+
parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0));
bail_unlock:
ocfs2_inode_unlock(dir, 0);
+unlock_nfs_sync:
+ ocfs2_nfs_sync_unlock(OCFS2_SB(dir->i_sb), 1);
+
bail:
trace_ocfs2_get_parent_end(parent);
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-27 19:41:41 +0000