Merge tag 'upstream-4.18-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI and UBIFS updates from Richard Weinberger:

 - the UBI on-disk format header file is now dual licensed

 - new way to detect Fastmap problems during runtime

 - bugfix for Fastmap

 - minor updates for UBIFS (spelling, comments, vm_fault_t, ...)

* tag 'upstream-4.18-rc1' of git://git.infradead.org/linux-ubifs:
  mtd: ubi: Update ubi-media.h to dual license
  ubi: fastmap: Detect EBA mismatches on-the-fly
  ubi: fastmap: Check each mapping only once
  ubi: fastmap: Correctly handle interrupted erasures in EBA
  ubi: fastmap: Cancel work upon detach
  ubifs: lpt: Fix wrong pnode number range in comment
  ubifs: gc: Fix typo
  ubifs: log: Some spelling fixes
  ubifs: Spelling fix someting -> something
  ubifs: journal: Remove wrong comment
  ubifs: remove set but never used variable
  ubifs, xattr: remove misguided quota flags
  fs: ubifs: Adding new return type vm_fault_t

8 files changed, 13 insertions, 22 deletions

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 1acb2ff505e6..28b80713a163 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1513,7 +1513,7 @@ static int ubifs_releasepage(struct page *page, gfp_t unused_gfp_flags)
  * mmap()d file has taken write protection fault and is being made writable.
  * UBIFS must ensure page is budgeted for.
  */
-static int ubifs_vm_page_mkwrite(struct vm_fault *vmf)
+static vm_fault_t ubifs_vm_page_mkwrite(struct vm_fault *vmf)
 {
 	struct page *page = vmf->page;
 	struct inode *inode = file_inode(vmf->vma->vm_file);
@@ -1567,8 +1567,7 @@ static int ubifs_vm_page_mkwrite(struct vm_fault *vmf)
 	if (unlikely(page->mapping != inode->i_mapping ||
 		     page_offset(page) > i_size_read(inode))) {
 		/* Page got truncated out from underneath us */
-		err = -EINVAL;
-		goto out_unlock;
+		goto sigbus;
 	}
 
 	if (PagePrivate(page))
@@ -1597,12 +1596,10 @@ static int ubifs_vm_page_mkwrite(struct vm_fault *vmf)
 	wait_for_stable_page(page);
 	return VM_FAULT_LOCKED;
 
-out_unlock:
+sigbus:
 	unlock_page(page);
 	ubifs_release_budget(c, &req);
-	if (err)
-		err = VM_FAULT_SIGBUS;
-	return err;
+	return VM_FAULT_SIGBUS;
 }
 
 static const struct vm_operations_struct ubifs_file_vm_ops = {
diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index 7b35e3d6cde7..a03a47cf880d 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -49,7 +49,7 @@
  * maximum size. So dark watermark is the amount of free + dirty space in LEB
  * which are guaranteed to be reclaimable. If LEB has less space, the GC might
  * be unable to reclaim it. So, LEBs with free + dirty greater than dark
- * watermark are "good" LEBs from GC's point of few. The other LEBs are not so
+ * watermark are "good" LEBs from GC's point of view. The other LEBs are not so
  * good, and GC takes extra care when moving them.
  */
 
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 04c4ec6483e5..da8afdfccaa6 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -98,9 +98,8 @@ static inline void zero_trun_node_unused(struct ubifs_trun_node *trun)
  *
  * This function reserves space in journal head @head. If the reservation
  * succeeded, the journal head stays locked and later has to be unlocked using
- * 'release_head()'. 'write_node()' and 'write_head()' functions also unlock
- * it. Returns zero in case of success, %-EAGAIN if commit has to be done, and
- * other negative error codes in case of other failures.
+ * 'release_head()'. Returns zero in case of success, %-EAGAIN if commit has to
+ * be done, and other negative error codes in case of other failures.
  */
 static int reserve_space(struct ubifs_info *c, int jhead, int len)
 {
diff --git a/fs/ubifs/log.c b/fs/ubifs/log.c
index 8c795e6392b1..7cffa120a750 100644
--- a/fs/ubifs/log.c
+++ b/fs/ubifs/log.c
@@ -167,10 +167,10 @@ void ubifs_add_bud(struct ubifs_info *c, struct ubifs_bud *bud)
  * @lnum: LEB number of the bud
  * @offs: starting offset of the bud
  *
- * This function writes reference node for the new bud LEB @lnum it to the log,
- * and adds it to the buds tress. It also makes sure that log size does not
+ * This function writes a reference node for the new bud LEB @lnum to the log,
+ * and adds it to the buds trees. It also makes sure that log size does not
  * exceed the 'c->max_bud_bytes' limit. Returns zero in case of success,
- * %-EAGAIN if commit is required, and a negative error codes in case of
+ * %-EAGAIN if commit is required, and a negative error code in case of
  * failure.
  */
 int ubifs_add_bud_to_log(struct ubifs_info *c, int jhead, int lnum, int offs)
diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
index 235654c2fe89..78da65b2fb85 100644
--- a/fs/ubifs/lpt_commit.c
+++ b/fs/ubifs/lpt_commit.c
@@ -619,7 +619,7 @@ static struct ubifs_pnode *next_pnode_to_dirty(struct ubifs_info *c,
 /**
  * pnode_lookup - lookup a pnode in the LPT.
  * @c: UBIFS file-system description object
- * @i: pnode number (0 to main_lebs - 1)
+ * @i: pnode number (0 to (main_lebs - 1) / UBIFS_LPT_FANOUT))
  *
  * This function returns a pointer to the pnode on success or a negative
  * error code on failure.
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c
index ae5c02f22f3e..85c2a43082b7 100644
--- a/fs/ubifs/replay.c
+++ b/fs/ubifs/replay.c
@@ -223,9 +223,6 @@ static int apply_replay_entry(struct ubifs_info *c, struct replay_entry *r)
 	dbg_mntk(&r->key, "LEB %d:%d len %d deletion %d sqnum %llu key ",
 		 r->lnum, r->offs, r->len, r->deletion, r->sqnum);
 
-	/* Set c->replay_sqnum to help deal with dangling branches. */
-	c->replay_sqnum = r->sqnum;
-
 	if (is_hash_key(c, &r->key)) {
 		if (r->deletion)
 			err = ubifs_tnc_remove_nm(c, &r->key, &r->nm);
@@ -1037,7 +1034,7 @@ int ubifs_replay_journal(struct ubifs_info *c)
 			 * The head of the log must always start with the
 			 * "commit start" node on a properly formatted UBIFS.
 			 * But we found no nodes at all, which means that
-			 * someting went wrong and we cannot proceed mounting
+			 * something went wrong and we cannot proceed mounting
 			 * the file-system.
 			 */
 			ubifs_err(c, "no UBIFS nodes found at the log head LEB %d:%d, possibly corrupted",
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 5ee7af879cc4..209d6369ae71 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1206,7 +1206,6 @@ struct ubifs_debug_info;
  * @replay_list: temporary list used during journal replay
  * @replay_buds: list of buds to replay
  * @cs_sqnum: sequence number of first node in the log (commit start node)
- * @replay_sqnum: sequence number of node currently being replayed
  * @unclean_leb_list: LEBs to recover when re-mounting R/O mounted FS to R/W
  *                    mode
  * @rcvrd_mst_node: recovered master node to write when re-mounting R/O mounted
@@ -1438,7 +1437,6 @@ struct ubifs_info {
 	struct list_head replay_list;
 	struct list_head replay_buds;
 	unsigned long long cs_sqnum;
-	unsigned long long replay_sqnum;
 	struct list_head unclean_leb_list;
 	struct ubifs_mst_node *rcvrd_mst_node;
 	struct rb_root size_tree;
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 759f1a209dbb..6f720fdf5020 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -139,7 +139,7 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	inode->i_op = &empty_iops;
 	inode->i_fop = &empty_fops;
 
-	inode->i_flags |= S_SYNC | S_NOATIME | S_NOCMTIME | S_NOQUOTA;
+	inode->i_flags |= S_SYNC | S_NOATIME | S_NOCMTIME;
 	ui = ubifs_inode(inode);
 	ui->xattr = 1;
 	ui->flags |= UBIFS_XATTR_FL;