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Diffstat (limited to 'fs/btrfs/tree-log.c')
-rw-r--r--fs/btrfs/tree-log.c117
1 files changed, 92 insertions, 25 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index c276ac9a0ec3..79f057c0619a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -18,6 +18,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/blkdev.h>
#include <linux/list_sort.h>
#include "ctree.h"
#include "transaction.h"
@@ -92,7 +93,8 @@
*/
#define LOG_WALK_PIN_ONLY 0
#define LOG_WALK_REPLAY_INODES 1
-#define LOG_WALK_REPLAY_ALL 2
+#define LOG_WALK_REPLAY_DIR_INDEX 2
+#define LOG_WALK_REPLAY_ALL 3
static int btrfs_log_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode,
@@ -279,11 +281,23 @@ static int process_one_buffer(struct btrfs_root *log,
{
int ret = 0;
+ /*
+ * If this fs is mixed then we need to be able to process the leaves to
+ * pin down any logged extents, so we have to read the block.
+ */
+ if (btrfs_fs_incompat(log->fs_info, MIXED_GROUPS)) {
+ ret = btrfs_read_buffer(eb, gen);
+ if (ret)
+ return ret;
+ }
+
if (wc->pin)
ret = btrfs_pin_extent_for_log_replay(log->fs_info->extent_root,
eb->start, eb->len);
if (!ret && btrfs_buffer_uptodate(eb, gen, 0)) {
+ if (wc->pin && btrfs_header_level(eb) == 0)
+ ret = btrfs_exclude_logged_extents(log, eb);
if (wc->write)
btrfs_write_tree_block(eb);
if (wc->wait)
@@ -380,6 +394,7 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
if (inode_item) {
struct btrfs_inode_item *item;
u64 nbytes;
+ u32 mode;
item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
@@ -387,9 +402,19 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
item = btrfs_item_ptr(eb, slot,
struct btrfs_inode_item);
btrfs_set_inode_nbytes(eb, item, nbytes);
+
+ /*
+ * If this is a directory we need to reset the i_size to
+ * 0 so that we can set it up properly when replaying
+ * the rest of the items in this log.
+ */
+ mode = btrfs_inode_mode(eb, item);
+ if (S_ISDIR(mode))
+ btrfs_set_inode_size(eb, item, 0);
}
} else if (inode_item) {
struct btrfs_inode_item *item;
+ u32 mode;
/*
* New inode, set nbytes to 0 so that the nbytes comes out
@@ -397,6 +422,15 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
*/
item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item);
btrfs_set_inode_nbytes(eb, item, 0);
+
+ /*
+ * If this is a directory we need to reset the i_size to 0 so
+ * that we can set it up properly when replaying the rest of
+ * the items in this log.
+ */
+ mode = btrfs_inode_mode(eb, item);
+ if (S_ISDIR(mode))
+ btrfs_set_inode_size(eb, item, 0);
}
insert:
btrfs_release_path(path);
@@ -734,7 +768,8 @@ static noinline int drop_one_dir_item(struct btrfs_trans_handle *trans,
ret = btrfs_unlink_inode(trans, root, dir, inode, name, name_len);
if (ret)
goto out;
- btrfs_run_delayed_items(trans, root);
+ else
+ ret = btrfs_run_delayed_items(trans, root);
out:
kfree(name);
iput(inode);
@@ -910,7 +945,9 @@ again:
kfree(victim_name);
if (ret)
return ret;
- btrfs_run_delayed_items(trans, root);
+ ret = btrfs_run_delayed_items(trans, root);
+ if (ret)
+ return ret;
*search_done = 1;
goto again;
}
@@ -977,7 +1014,9 @@ again:
inode,
victim_name,
victim_name_len);
- btrfs_run_delayed_items(trans, root);
+ if (!ret)
+ ret = btrfs_run_delayed_items(
+ trans, root);
}
iput(victim_parent);
kfree(victim_name);
@@ -1478,6 +1517,7 @@ static noinline int insert_one_name(struct btrfs_trans_handle *trans,
iput(inode);
return -EIO;
}
+
ret = btrfs_add_link(trans, dir, inode, name, name_len, 1, index);
/* FIXME, put inode into FIXUP list */
@@ -1516,6 +1556,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
u8 log_type;
int exists;
int ret = 0;
+ bool update_size = (key->type == BTRFS_DIR_INDEX_KEY);
dir = read_one_inode(root, key->objectid);
if (!dir)
@@ -1523,8 +1564,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
name_len = btrfs_dir_name_len(eb, di);
name = kmalloc(name_len, GFP_NOFS);
- if (!name)
- return -ENOMEM;
+ if (!name) {
+ ret = -ENOMEM;
+ goto out;
+ }
log_type = btrfs_dir_type(eb, di);
read_extent_buffer(eb, name, (unsigned long)(di + 1),
@@ -1584,6 +1627,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
goto insert;
out:
btrfs_release_path(path);
+ if (!ret && update_size) {
+ btrfs_i_size_write(dir, dir->i_size + name_len * 2);
+ ret = btrfs_update_inode(trans, root, dir);
+ }
kfree(name);
iput(dir);
return ret;
@@ -1594,6 +1641,7 @@ insert:
name, name_len, log_type, &log_key);
if (ret && ret != -ENOENT)
goto out;
+ update_size = false;
ret = 0;
goto out;
}
@@ -1797,7 +1845,7 @@ again:
ret = btrfs_unlink_inode(trans, root, dir, inode,
name, name_len);
if (!ret)
- btrfs_run_delayed_items(trans, root);
+ ret = btrfs_run_delayed_items(trans, root);
kfree(name);
iput(inode);
if (ret)
@@ -2007,6 +2055,15 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
if (ret)
break;
}
+
+ if (key.type == BTRFS_DIR_INDEX_KEY &&
+ wc->stage == LOG_WALK_REPLAY_DIR_INDEX) {
+ ret = replay_one_dir_item(wc->trans, root, path,
+ eb, i, &key);
+ if (ret)
+ break;
+ }
+
if (wc->stage < LOG_WALK_REPLAY_ALL)
continue;
@@ -2016,13 +2073,8 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
eb, i, &key);
if (ret)
break;
- } else if (key.type == BTRFS_INODE_REF_KEY) {
- ret = add_inode_ref(wc->trans, root, log, path,
- eb, i, &key);
- if (ret && ret != -ENOENT)
- break;
- ret = 0;
- } else if (key.type == BTRFS_INODE_EXTREF_KEY) {
+ } else if (key.type == BTRFS_INODE_REF_KEY ||
+ key.type == BTRFS_INODE_EXTREF_KEY) {
ret = add_inode_ref(wc->trans, root, log, path,
eb, i, &key);
if (ret && ret != -ENOENT)
@@ -2033,8 +2085,7 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
eb, i, &key);
if (ret)
break;
- } else if (key.type == BTRFS_DIR_ITEM_KEY ||
- key.type == BTRFS_DIR_INDEX_KEY) {
+ } else if (key.type == BTRFS_DIR_ITEM_KEY) {
ret = replay_one_dir_item(wc->trans, root, path,
eb, i, &key);
if (ret)
@@ -2358,6 +2409,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
struct btrfs_root *log = root->log_root;
struct btrfs_root *log_root_tree = root->fs_info->log_root_tree;
unsigned long log_transid = 0;
+ struct blk_plug plug;
mutex_lock(&root->log_mutex);
log_transid = root->log_transid;
@@ -2401,8 +2453,10 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
/* we start IO on all the marked extents here, but we don't actually
* wait for them until later.
*/
+ blk_start_plug(&plug);
ret = btrfs_write_marked_extents(log, &log->dirty_log_pages, mark);
if (ret) {
+ blk_finish_plug(&plug);
btrfs_abort_transaction(trans, root, ret);
btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&root->log_mutex);
@@ -2437,6 +2491,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
}
if (ret) {
+ blk_finish_plug(&plug);
if (ret != -ENOSPC) {
btrfs_abort_transaction(trans, root, ret);
mutex_unlock(&log_root_tree->log_mutex);
@@ -2452,6 +2507,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
index2 = log_root_tree->log_transid % 2;
if (atomic_read(&log_root_tree->log_commit[index2])) {
+ blk_finish_plug(&plug);
btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
wait_log_commit(trans, log_root_tree,
log_root_tree->log_transid);
@@ -2474,6 +2530,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
* check the full commit flag again
*/
if (root->fs_info->last_trans_log_full_commit == trans->transid) {
+ blk_finish_plug(&plug);
btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
btrfs_free_logged_extents(log, log_transid);
mutex_unlock(&log_root_tree->log_mutex);
@@ -2481,9 +2538,10 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
goto out_wake_log_root;
}
- ret = btrfs_write_and_wait_marked_extents(log_root_tree,
- &log_root_tree->dirty_log_pages,
- EXTENT_DIRTY | EXTENT_NEW);
+ ret = btrfs_write_marked_extents(log_root_tree,
+ &log_root_tree->dirty_log_pages,
+ EXTENT_DIRTY | EXTENT_NEW);
+ blk_finish_plug(&plug);
if (ret) {
btrfs_abort_transaction(trans, root, ret);
btrfs_free_logged_extents(log, log_transid);
@@ -2491,6 +2549,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
goto out_wake_log_root;
}
btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
+ btrfs_wait_marked_extents(log_root_tree,
+ &log_root_tree->dirty_log_pages,
+ EXTENT_NEW | EXTENT_DIRTY);
btrfs_wait_logged_extents(log, log_transid);
btrfs_set_super_log_root(root->fs_info->super_for_commit,
@@ -3728,8 +3789,9 @@ next_slot:
}
log_extents:
+ btrfs_release_path(path);
+ btrfs_release_path(dst_path);
if (fast_search) {
- btrfs_release_path(dst_path);
ret = btrfs_log_changed_extents(trans, root, inode, dst_path);
if (ret) {
err = ret;
@@ -3746,8 +3808,6 @@ log_extents:
}
if (inode_only == LOG_INODE_ALL && S_ISDIR(inode->i_mode)) {
- btrfs_release_path(path);
- btrfs_release_path(dst_path);
ret = log_directory_changes(trans, root, inode, path, dst_path);
if (ret) {
err = ret;
@@ -3781,6 +3841,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
int ret = 0;
struct btrfs_root *root;
struct dentry *old_parent = NULL;
+ struct inode *orig_inode = inode;
/*
* for regular files, if its inode is already on disk, we don't
@@ -3800,7 +3861,14 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
}
while (1) {
- BTRFS_I(inode)->logged_trans = trans->transid;
+ /*
+ * If we are logging a directory then we start with our inode,
+ * not our parents inode, so we need to skipp setting the
+ * logged_trans so that further down in the log code we don't
+ * think this inode has already been logged.
+ */
+ if (inode != orig_inode)
+ BTRFS_I(inode)->logged_trans = trans->transid;
smp_mb();
if (BTRFS_I(inode)->last_unlink_trans > last_committed) {
@@ -4016,8 +4084,7 @@ again:
if (found_key.objectid != BTRFS_TREE_LOG_OBJECTID)
break;
- log = btrfs_read_fs_root_no_radix(log_root_tree,
- &found_key);
+ log = btrfs_read_fs_root(log_root_tree, &found_key);
if (IS_ERR(log)) {
ret = PTR_ERR(log);
btrfs_error(fs_info, ret,
generated by cgit (git 2.34.1) at 2025-08-11 22:23:46 +0000