Root/target/linux/generic/patches-3.3/550-ubifs-symlink-xattr-support.patch

1--- a/fs/ubifs/file.c
2+++ b/fs/ubifs/file.c
3@@ -1575,6 +1575,12 @@ const struct inode_operations ubifs_syml
4     .follow_link = ubifs_follow_link,
5     .setattr = ubifs_setattr,
6     .getattr = ubifs_getattr,
7+#ifdef CONFIG_UBIFS_FS_XATTR
8+ .setxattr = ubifs_setxattr,
9+ .getxattr = ubifs_getxattr,
10+ .listxattr = ubifs_listxattr,
11+ .removexattr = ubifs_removexattr,
12+#endif
13 };
14 
15 const struct file_operations ubifs_file_operations = {
16--- a/fs/ubifs/journal.c
17+++ b/fs/ubifs/journal.c
18@@ -553,7 +553,8 @@ int ubifs_jnl_update(struct ubifs_info *
19 
20     dbg_jnl("ino %lu, dent '%.*s', data len %d in dir ino %lu",
21         inode->i_ino, nm->len, nm->name, ui->data_len, dir->i_ino);
22- ubifs_assert(dir_ui->data_len == 0);
23+ if (!xent)
24+ ubifs_assert(dir_ui->data_len == 0);
25     ubifs_assert(mutex_is_locked(&dir_ui->ui_mutex));
26 
27     dlen = UBIFS_DENT_NODE_SZ + nm->len + 1;
28@@ -573,6 +574,13 @@ int ubifs_jnl_update(struct ubifs_info *
29     aligned_dlen = ALIGN(dlen, 8);
30     aligned_ilen = ALIGN(ilen, 8);
31     len = aligned_dlen + aligned_ilen + UBIFS_INO_NODE_SZ;
32+ if (xent) {
33+ /*
34+ * Make sure to account for dir_ui->data_len in
35+ * length calculation in case there is extended attribute.
36+ */
37+ len += dir_ui->data_len;
38+ }
39     dent = kmalloc(len, GFP_NOFS);
40     if (!dent)
41         return -ENOMEM;
42@@ -649,7 +657,8 @@ int ubifs_jnl_update(struct ubifs_info *
43 
44     ino_key_init(c, &ino_key, dir->i_ino);
45     ino_offs += aligned_ilen;
46- err = ubifs_tnc_add(c, &ino_key, lnum, ino_offs, UBIFS_INO_NODE_SZ);
47+ err = ubifs_tnc_add(c, &ino_key, lnum, ino_offs,
48+ UBIFS_INO_NODE_SZ + dir_ui->data_len);
49     if (err)
50         goto out_ro;
51 
52--- a/fs/ubifs/xattr.c
53+++ b/fs/ubifs/xattr.c
54@@ -209,12 +209,12 @@ static int change_xattr(struct ubifs_inf
55         goto out_free;
56     }
57     inode->i_size = ui->ui_size = size;
58- ui->data_len = size;
59 
60     mutex_lock(&host_ui->ui_mutex);
61     host->i_ctime = ubifs_current_time(host);
62     host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len);
63     host_ui->xattr_size += CALC_XATTR_BYTES(size);
64+ ui->data_len = size;
65 
66     /*
67      * It is important to write the host inode after the xattr inode
68

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