f2fs: catch up to v4.14-rc1
Cherry-picked from upstream-f2fs-stable-linux-4.9.y
Changes include:
commit 30da3a4de96733 ("f2fs: hurry up to issue discard after io interruption")
commit d1c363b48398d4 ("f2fs: fix to show correct discard_granularity in sysfs")
...
commit e6b120d4d01ab0 ("f2fs/fscrypt: catch up to v4.12")
commit 4d7931d72758db ("KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()")
Signed-off-by: Hyojun Kim <hyojun@google.com>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f72535e..01b39e7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1102,51 +1102,65 @@
EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, ctx, len);
}
-static int ext4_key_prefix(struct inode *inode, u8 **key)
-{
- *key = EXT4_SB(inode->i_sb)->key_prefix;
- return EXT4_SB(inode->i_sb)->key_prefix_size;
-}
-
-static int ext4_prepare_context(struct inode *inode)
-{
- return ext4_convert_inline_data(inode);
-}
-
static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
void *fs_data)
{
- handle_t *handle;
- int res, res2;
+ handle_t *handle = fs_data;
+ int res, res2, retries = 0;
- /* fs_data is null when internally used. */
- if (fs_data) {
- res = ext4_xattr_set(inode, EXT4_XATTR_INDEX_ENCRYPTION,
- EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, ctx,
- len, 0);
+ res = ext4_convert_inline_data(inode);
+ if (res)
+ return res;
+
+ /*
+ * If a journal handle was specified, then the encryption context is
+ * being set on a new inode via inheritance and is part of a larger
+ * transaction to create the inode. Otherwise the encryption context is
+ * being set on an existing inode in its own transaction. Only in the
+ * latter case should the "retry on ENOSPC" logic be used.
+ */
+
+ if (handle) {
+ res = ext4_xattr_set_handle(handle, inode,
+ EXT4_XATTR_INDEX_ENCRYPTION,
+ EXT4_XATTR_NAME_ENCRYPTION_CONTEXT,
+ ctx, len, 0);
if (!res) {
ext4_set_inode_flag(inode, EXT4_INODE_ENCRYPT);
ext4_clear_inode_state(inode,
EXT4_STATE_MAY_INLINE_DATA);
+ /*
+ * Update inode->i_flags - e.g. S_DAX may get disabled
+ */
+ ext4_set_inode_flags(inode);
}
return res;
}
+ res = dquot_initialize(inode);
+ if (res)
+ return res;
+retry:
handle = ext4_journal_start(inode, EXT4_HT_MISC,
ext4_jbd2_credits_xattr(inode));
if (IS_ERR(handle))
return PTR_ERR(handle);
- res = ext4_xattr_set(inode, EXT4_XATTR_INDEX_ENCRYPTION,
- EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, ctx,
- len, 0);
+ res = ext4_xattr_set_handle(handle, inode, EXT4_XATTR_INDEX_ENCRYPTION,
+ EXT4_XATTR_NAME_ENCRYPTION_CONTEXT,
+ ctx, len, 0);
if (!res) {
ext4_set_inode_flag(inode, EXT4_INODE_ENCRYPT);
+ /* Update inode->i_flags - e.g. S_DAX may get disabled */
+ ext4_set_inode_flags(inode);
res = ext4_mark_inode_dirty(handle, inode);
if (res)
EXT4_ERROR_INODE(inode, "Failed to mark inode dirty");
}
res2 = ext4_journal_stop(handle);
+
+ if (res == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
+ goto retry;
if (!res)
res = res2;
return res;
@@ -1163,10 +1177,9 @@
EXT4_NAME_LEN;
}
-static struct fscrypt_operations ext4_cryptops = {
+static const struct fscrypt_operations ext4_cryptops = {
+ .key_prefix = "ext4:",
.get_context = ext4_get_context,
- .key_prefix = ext4_key_prefix,
- .prepare_context = ext4_prepare_context,
.set_context = ext4_set_context,
.dummy_context = ext4_dummy_context,
.is_encrypted = ext4_encrypted_inode,
@@ -1174,7 +1187,7 @@
.max_namelen = ext4_max_namelen,
};
#else
-static struct fscrypt_operations ext4_cryptops = {
+static const struct fscrypt_operations ext4_cryptops = {
.is_encrypted = ext4_encrypted_inode,
};
#endif
@@ -4220,11 +4233,6 @@
ratelimit_state_init(&sbi->s_msg_ratelimit_state, 5 * HZ, 10);
kfree(orig_data);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- memcpy(sbi->key_prefix, EXT4_KEY_DESC_PREFIX,
- EXT4_KEY_DESC_PREFIX_SIZE);
- sbi->key_prefix_size = EXT4_KEY_DESC_PREFIX_SIZE;
-#endif
return 0;
cantfind_ext4: