add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/fs/fuse/dir.c
..
..
@@ -205,7 +205,7 @@
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 	if (inode && fuse_is_bad(inode))
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 		goto invalid;
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 	else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
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-		 (flags & (LOOKUP_EXCL | LOOKUP_REVAL))) {
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+		 (flags & (LOOKUP_EXCL | LOOKUP_REVAL | LOOKUP_RENAME_TARGET))) {
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 		struct fuse_entry_out outarg;
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 		FUSE_ARGS(args);
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 		struct fuse_forget_link *forget;
..
..
@@ -249,7 +249,7 @@
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 			spin_unlock(&fi->lock);
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 		}
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 		kfree(forget);
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-		if (ret == -ENOMEM)
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+		if (ret == -ENOMEM || ret == -EINTR)
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 			goto out;
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 		if (ret || fuse_invalid_attr(&outarg.attr) ||
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 		    fuse_stale_inode(inode, outarg.generation, &outarg.attr))
..
..
@@ -578,6 +578,7 @@
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 	struct fuse_entry_out outentry;
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 	struct fuse_inode *fi;
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 	struct fuse_file *ff;
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+	bool trunc = flags & O_TRUNC;
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 	/* Userspace expects S_IFREG in create mode */
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 	BUG_ON((mode & S_IFMT) != S_IFREG);
..
..
@@ -646,6 +647,10 @@
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 	} else {
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 		file->private_data = ff;
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 		fuse_finish_open(inode, file);
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+		if (fm->fc->atomic_o_trunc && trunc)
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+			truncate_pagecache(inode, 0);
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+		else if (!(ff->open_flags & FOPEN_KEEP_CACHE))
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+			invalidate_inode_pages2(inode->i_mapping);
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 	}
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 	return err;
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