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-rw-r--r--fs/ubifs/budget.c9
-rw-r--r--fs/ubifs/dir.c18
-rw-r--r--fs/ubifs/file.c31
-rw-r--r--fs/ubifs/io.c6
-rw-r--r--fs/ubifs/journal.c8
-rw-r--r--fs/ubifs/super.c17
-rw-r--r--fs/ubifs/sysfs.c6
-rw-r--r--fs/ubifs/tnc.c24
-rw-r--r--fs/ubifs/ubifs.h5
9 files changed, 98 insertions, 26 deletions
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index e8b9b756f0ac..d76eb7b39f56 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -209,11 +209,10 @@ long long ubifs_calc_available(const struct ubifs_info *c, int min_idx_lebs)
subtract_lebs += 1;
/*
- * The GC journal head LEB is not really accessible. And since
- * different write types go to different heads, we may count only on
- * one head's space.
+ * Since different write types go to different heads, we should
+ * reserve one leb for each head.
*/
- subtract_lebs += c->jhead_cnt - 1;
+ subtract_lebs += c->jhead_cnt;
/* We also reserve one LEB for deletions, which bypass budgeting */
subtract_lebs += 1;
@@ -400,7 +399,7 @@ static int calc_dd_growth(const struct ubifs_info *c,
dd_growth = req->dirtied_page ? c->bi.page_budget : 0;
if (req->dirtied_ino)
- dd_growth += c->bi.inode_budget << (req->dirtied_ino - 1);
+ dd_growth += c->bi.inode_budget * req->dirtied_ino;
if (req->mod_dent)
dd_growth += c->bi.dent_budget;
dd_growth += req->dirtied_ino_d;
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 1e92c1730c16..1505539f6fe9 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1151,7 +1151,6 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir,
int err, sz_change, len = strlen(symname);
struct fscrypt_str disk_link;
struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
- .new_ino_d = ALIGN(len, 8),
.dirtied_ino = 1 };
struct fscrypt_name nm;
@@ -1167,6 +1166,7 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir,
* Budget request settings: new inode, new direntry and changing parent
* directory inode.
*/
+ req.new_ino_d = ALIGN(disk_link.len - 1, 8);
err = ubifs_budget_space(c, &req);
if (err)
return err;
@@ -1324,6 +1324,8 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
if (unlink) {
ubifs_assert(c, inode_is_locked(new_inode));
+ /* Budget for old inode's data when its nlink > 1. */
+ req.dirtied_ino_d = ALIGN(ubifs_inode(new_inode)->data_len, 8);
err = ubifs_purge_xattrs(new_inode);
if (err)
return err;
@@ -1566,6 +1568,15 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
ubifs_assert(c, fst_inode && snd_inode);
+ /*
+ * Budget request settings: changing two direntries, changing the two
+ * parent directory inodes.
+ */
+
+ dbg_gen("dent '%pd' ino %lu in dir ino %lu exchange dent '%pd' ino %lu in dir ino %lu",
+ old_dentry, fst_inode->i_ino, old_dir->i_ino,
+ new_dentry, snd_inode->i_ino, new_dir->i_ino);
+
err = fscrypt_setup_filename(old_dir, &old_dentry->d_name, 0, &fst_nm);
if (err)
return err;
@@ -1576,6 +1587,10 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
return err;
}
+ err = ubifs_budget_space(c, &req);
+ if (err)
+ goto out;
+
lock_4_inodes(old_dir, new_dir, NULL, NULL);
time = current_time(old_dir);
@@ -1601,6 +1616,7 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
unlock_4_inodes(old_dir, new_dir, NULL, NULL);
ubifs_release_budget(c, &req);
+out:
fscrypt_free_filename(&fst_nm);
fscrypt_free_filename(&snd_nm);
return err;
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 8cb5d76b301c..979ab1d9d0c3 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1032,7 +1032,7 @@ static int ubifs_writepage(struct page *page, struct writeback_control *wbc)
if (page->index >= synced_i_size >> PAGE_SHIFT) {
err = inode->i_sb->s_op->write_inode(inode, NULL);
if (err)
- goto out_unlock;
+ goto out_redirty;
/*
* The inode has been written, but the write-buffer has
* not been synchronized, so in case of an unclean
@@ -1060,11 +1060,17 @@ static int ubifs_writepage(struct page *page, struct writeback_control *wbc)
if (i_size > synced_i_size) {
err = inode->i_sb->s_op->write_inode(inode, NULL);
if (err)
- goto out_unlock;
+ goto out_redirty;
}
return do_writepage(page, len);
-
+out_redirty:
+ /*
+ * redirty_page_for_writepage() won't call ubifs_dirty_inode() because
+ * it passes I_DIRTY_PAGES flag while calling __mark_inode_dirty(), so
+ * there is no need to do space budget for dirty inode.
+ */
+ redirty_page_for_writepage(wbc, page);
out_unlock:
unlock_page(page);
return err;
@@ -1466,14 +1472,23 @@ static bool ubifs_release_folio(struct folio *folio, gfp_t unused_gfp_flags)
struct inode *inode = folio->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
- /*
- * An attempt to release a dirty page without budgeting for it - should
- * not happen.
- */
if (folio_test_writeback(folio))
return false;
+
+ /*
+ * Page is private but not dirty, weird? There is one condition
+ * making it happened. ubifs_writepage skipped the page because
+ * page index beyonds isize (for example. truncated by other
+ * process named A), then the page is invalidated by fadvise64
+ * syscall before being truncated by process A.
+ */
ubifs_assert(c, folio_test_private(folio));
- ubifs_assert(c, 0);
+ if (folio_test_checked(folio))
+ release_new_page_budget(c);
+ else
+ release_existing_page_budget(c);
+
+ atomic_long_dec(&c->dirty_pg_cnt);
folio_detach_private(folio);
folio_clear_checked(folio);
return true;
diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index 1607a3c76681..01d8eb170382 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -488,7 +488,7 @@ void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last)
}
/**
- * wbuf_timer_callback - write-buffer timer callback function.
+ * wbuf_timer_callback_nolock - write-buffer timer callback function.
* @timer: timer data (write-buffer descriptor)
*
* This function is called when the write-buffer timer expires.
@@ -505,7 +505,7 @@ static enum hrtimer_restart wbuf_timer_callback_nolock(struct hrtimer *timer)
}
/**
- * new_wbuf_timer - start new write-buffer timer.
+ * new_wbuf_timer_nolock - start new write-buffer timer.
* @c: UBIFS file-system description object
* @wbuf: write-buffer descriptor
*/
@@ -531,7 +531,7 @@ static void new_wbuf_timer_nolock(struct ubifs_info *c, struct ubifs_wbuf *wbuf)
}
/**
- * cancel_wbuf_timer - cancel write-buffer timer.
+ * cancel_wbuf_timer_nolock - cancel write-buffer timer.
* @wbuf: write-buffer descriptor
*/
static void cancel_wbuf_timer_nolock(struct ubifs_wbuf *wbuf)
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index d02509920baf..dc52ac0f4a34 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -1201,9 +1201,13 @@ out_free:
* ubifs_jnl_rename - rename a directory entry.
* @c: UBIFS file-system description object
* @old_dir: parent inode of directory entry to rename
- * @old_dentry: directory entry to rename
+ * @old_inode: directory entry's inode to rename
+ * @old_nm: name of the old directory entry to rename
* @new_dir: parent inode of directory entry to rename
- * @new_dentry: new directory entry (or directory entry to replace)
+ * @new_inode: new directory entry's inode (or directory entry's inode to
+ * replace)
+ * @new_nm: new name of the new directory entry
+ * @whiteout: whiteout inode
* @sync: non-zero if the write-buffer has to be synchronized
*
* This function implements the re-name operation which may involve writing up
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index d0c9a09988bc..32cb14759796 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -833,7 +833,7 @@ static int alloc_wbufs(struct ubifs_info *c)
INIT_LIST_HEAD(&c->jheads[i].buds_list);
err = ubifs_wbuf_init(c, &c->jheads[i].wbuf);
if (err)
- return err;
+ goto out_wbuf;
c->jheads[i].wbuf.sync_callback = &bud_wbuf_callback;
c->jheads[i].wbuf.jhead = i;
@@ -841,7 +841,7 @@ static int alloc_wbufs(struct ubifs_info *c)
c->jheads[i].log_hash = ubifs_hash_get_desc(c);
if (IS_ERR(c->jheads[i].log_hash)) {
err = PTR_ERR(c->jheads[i].log_hash);
- goto out;
+ goto out_log_hash;
}
}
@@ -854,9 +854,18 @@ static int alloc_wbufs(struct ubifs_info *c)
return 0;
-out:
- while (i--)
+out_log_hash:
+ kfree(c->jheads[i].wbuf.buf);
+ kfree(c->jheads[i].wbuf.inodes);
+
+out_wbuf:
+ while (i--) {
+ kfree(c->jheads[i].wbuf.buf);
+ kfree(c->jheads[i].wbuf.inodes);
kfree(c->jheads[i].log_hash);
+ }
+ kfree(c->jheads);
+ c->jheads = NULL;
return err;
}
diff --git a/fs/ubifs/sysfs.c b/fs/ubifs/sysfs.c
index 06ad8fa1fcfb..1c958148bb87 100644
--- a/fs/ubifs/sysfs.c
+++ b/fs/ubifs/sysfs.c
@@ -74,13 +74,13 @@ static const struct sysfs_ops ubifs_attr_ops = {
.show = ubifs_attr_show,
};
-static struct kobj_type ubifs_sb_ktype = {
+static const struct kobj_type ubifs_sb_ktype = {
.default_groups = ubifs_groups,
.sysfs_ops = &ubifs_attr_ops,
.release = ubifs_sb_release,
};
-static struct kobj_type ubifs_ktype = {
+static const struct kobj_type ubifs_ktype = {
.sysfs_ops = &ubifs_attr_ops,
};
@@ -144,6 +144,8 @@ int __init ubifs_sysfs_init(void)
kobject_set_name(&ubifs_kset.kobj, "ubifs");
ubifs_kset.kobj.parent = fs_kobj;
ret = kset_register(&ubifs_kset);
+ if (ret)
+ kset_put(&ubifs_kset);
return ret;
}
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 488f3da7a6c6..2469f72eeaab 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -267,11 +267,18 @@ static struct ubifs_znode *dirty_cow_znode(struct ubifs_info *c,
if (zbr->len) {
err = insert_old_idx(c, zbr->lnum, zbr->offs);
if (unlikely(err))
- return ERR_PTR(err);
+ /*
+ * Obsolete znodes will be freed by tnc_destroy_cnext()
+ * or free_obsolete_znodes(), copied up znodes should
+ * be added back to tnc and freed by
+ * ubifs_destroy_tnc_subtree().
+ */
+ goto out;
err = add_idx_dirt(c, zbr->lnum, zbr->len);
} else
err = 0;
+out:
zbr->znode = zn;
zbr->lnum = 0;
zbr->offs = 0;
@@ -3053,6 +3060,21 @@ static void tnc_destroy_cnext(struct ubifs_info *c)
cnext = cnext->cnext;
if (ubifs_zn_obsolete(znode))
kfree(znode);
+ else if (!ubifs_zn_cow(znode)) {
+ /*
+ * Don't forget to update clean znode count after
+ * committing failed, because ubifs will check this
+ * count while closing tnc. Non-obsolete znode could
+ * be re-dirtied during committing process, so dirty
+ * flag is untrustable. The flag 'COW_ZNODE' is set
+ * for each dirty znode before committing, and it is
+ * cleared as long as the znode become clean, so we
+ * can statistic clean znode count according to this
+ * flag.
+ */
+ atomic_long_inc(&c->clean_zn_cnt);
+ atomic_long_inc(&ubifs_clean_zn_cnt);
+ }
} while (cnext && cnext != c->cnext);
}
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 9063b73536f8..4c36044140e7 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1623,8 +1623,13 @@ static inline int ubifs_check_hmac(const struct ubifs_info *c,
return crypto_memneq(expected, got, c->hmac_desc_len);
}
+#ifdef CONFIG_UBIFS_FS_AUTHENTICATION
void ubifs_bad_hash(const struct ubifs_info *c, const void *node,
const u8 *hash, int lnum, int offs);
+#else
+static inline void ubifs_bad_hash(const struct ubifs_info *c, const void *node,
+ const u8 *hash, int lnum, int offs) {};
+#endif
int __ubifs_node_check_hash(const struct ubifs_info *c, const void *buf,
const u8 *expected);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 01:52:26 +0000