Merge branch 'x86/cpu' into x86/asm, to pick up dependent commits

Signed-off-by: Ingo Molnar <mingo@kernel.org>

3 files changed, 18 insertions, 3 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5b5f789b37eb..2b2d1b755544 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -838,6 +838,12 @@ static int fuse_check_folio(struct folio *folio)
 	return 0;
 }
 
+/*
+ * Attempt to steal a page from the splice() pipe and move it into the
+ * pagecache. If successful, the pointer in @pagep will be updated. The
+ * folio that was originally in @pagep will lose a reference and the new
+ * folio returned in @pagep will carry a reference.
+ */
 static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 {
 	int err;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 198862b086ff..3805f9b06c9d 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1636,7 +1636,7 @@ static const char *fuse_get_link(struct dentry *dentry, struct inode *inode,
 		goto out_err;
 
 	if (fc->cache_symlinks)
-		return page_get_link(dentry, inode, callback);
+		return page_get_link_raw(dentry, inode, callback);
 
 	err = -ECHILD;
 	if (!dentry)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 7d92a5479998..d63e56fd3dd2 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -955,8 +955,10 @@ static void fuse_readpages_end(struct fuse_mount *fm, struct fuse_args *args,
 		fuse_invalidate_atime(inode);
 	}
 
-	for (i = 0; i < ap->num_folios; i++)
+	for (i = 0; i < ap->num_folios; i++) {
 		folio_end_read(ap->folios[i], !err);
+		folio_put(ap->folios[i]);
+	}
 	if (ia->ff)
 		fuse_file_put(ia->ff, false);
 
@@ -1048,7 +1050,14 @@ static void fuse_readahead(struct readahead_control *rac)
 		ap = &ia->ap;
 
 		while (ap->num_folios < cur_pages) {
-			folio = readahead_folio(rac);
+			/*
+			 * This returns a folio with a ref held on it.
+			 * The ref needs to be held until the request is
+			 * completed, since the splice case (see
+			 * fuse_try_move_page()) drops the ref after it's
+			 * replaced in the page cache.
+			 */
+			folio = __readahead_folio(rac);
 			ap->folios[ap->num_folios] = folio;
 			ap->descs[ap->num_folios].length = folio_size(folio);
 			ap->num_folios++;