2 files changed, 9 insertions, 37 deletions

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 92ab20433682..91a7ad259bcf 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1735,7 +1735,6 @@ static long ceph_fallocate(struct file *file, int mode,
 	struct ceph_file_info *fi = file->private_data;
 	struct inode *inode = file_inode(file);
 	struct ceph_inode_info *ci = ceph_inode(inode);
-	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	struct ceph_cap_flush *prealloc_cf;
 	int want, got = 0;
 	int dirty;
@@ -1743,10 +1742,7 @@ static long ceph_fallocate(struct file *file, int mode,
 	loff_t endoff = 0;
 	loff_t size;
 
-	if ((offset + length) > max(i_size_read(inode), fsc->max_file_size))
-		return -EFBIG;
-
-	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+	if (mode != (FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
 		return -EOPNOTSUPP;
 
 	if (!S_ISREG(inode->i_mode))
@@ -1763,18 +1759,6 @@ static long ceph_fallocate(struct file *file, int mode,
 		goto unlock;
 	}
 
-	if (!(mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)) &&
-	    ceph_quota_is_max_bytes_exceeded(inode, offset + length)) {
-		ret = -EDQUOT;
-		goto unlock;
-	}
-
-	if (ceph_osdmap_flag(&fsc->client->osdc, CEPH_OSDMAP_FULL) &&
-	    !(mode & FALLOC_FL_PUNCH_HOLE)) {
-		ret = -ENOSPC;
-		goto unlock;
-	}
-
 	if (ci->i_inline_version != CEPH_INLINE_NONE) {
 		ret = ceph_uninline_data(file, NULL);
 		if (ret < 0)
@@ -1782,12 +1766,12 @@ static long ceph_fallocate(struct file *file, int mode,
 	}
 
 	size = i_size_read(inode);
-	if (!(mode & FALLOC_FL_KEEP_SIZE)) {
-		endoff = offset + length;
-		ret = inode_newsize_ok(inode, endoff);
-		if (ret)
-			goto unlock;
-	}
+
+	/* Are we punching a hole beyond EOF? */
+	if (offset >= size)
+		goto unlock;
+	if ((offset + length) > size)
+		length = size - offset;
 
 	if (fi->fmode & CEPH_FILE_MODE_LAZY)
 		want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO;
@@ -1798,16 +1782,8 @@ static long ceph_fallocate(struct file *file, int mode,
 	if (ret < 0)
 		goto unlock;
 
-	if (mode & FALLOC_FL_PUNCH_HOLE) {
-		if (offset < size)
-			ceph_zero_pagecache_range(inode, offset, length);
-		ret = ceph_zero_objects(inode, offset, length);
-	} else if (endoff > size) {
-		truncate_pagecache_range(inode, size, -1);
-		if (ceph_inode_set_size(inode, endoff))
-			ceph_check_caps(ceph_inode(inode),
-				CHECK_CAPS_AUTHONLY, NULL);
-	}
+	ceph_zero_pagecache_range(inode, offset, length);
+	ret = ceph_zero_objects(inode, offset, length);
 
 	if (!ret) {
 		spin_lock(&ci->i_ceph_lock);
@@ -1817,9 +1793,6 @@ static long ceph_fallocate(struct file *file, int mode,
 		spin_unlock(&ci->i_ceph_lock);
 		if (dirty)
 			__mark_inode_dirty(inode, dirty);
-		if ((endoff > size) &&
-		    ceph_quota_is_max_bytes_approaching(inode, endoff))
-			ceph_check_caps(ci, CHECK_CAPS_NODELAY, NULL);
 	}
 
 	ceph_put_cap_refs(ci, got);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index acb70a6a82f0..1e438e0faf77 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1694,7 +1694,6 @@ retry_lookup:
 			if (IS_ERR(realdn)) {
 				err = PTR_ERR(realdn);
 				d_drop(dn);
-				dn = NULL;
 				goto next_item;
 			}
 			dn = realdn;