1 files changed, 22 insertions, 1 deletions

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 8305f2ac6773..c1c3ef88a260 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -42,6 +42,7 @@
 #include "xfs_inode_item.h"
 #include "xfs_export.h"
 #include "xfs_trace.h"
+#include "xfs_icache.h"
 
 #include <linux/capability.h>
 #include <linux/dcache.h>
@@ -70,7 +71,7 @@ xfs_find_handle(
         int                     hsize;
         xfs_handle_t            handle;
         struct inode            *inode;
-        struct fd               f;
+        struct fd               f = {0};
         struct path             path;
         int                     error;
         struct xfs_inode        *ip;
@@ -1602,6 +1603,26 @@ xfs_file_ioctl(
                 error = xfs_errortag_clearall(mp, 1);
                 return -error;
 
+        case XFS_IOC_FREE_EOFBLOCKS: {
+                struct xfs_eofblocks eofb;
+
+                if (copy_from_user(&eofb, arg, sizeof(eofb)))
+                        return -XFS_ERROR(EFAULT);
+
+                if (eofb.eof_version != XFS_EOFBLOCKS_VERSION)
+                        return -XFS_ERROR(EINVAL);
+
+                if (eofb.eof_flags & ~XFS_EOF_FLAGS_VALID)
+                        return -XFS_ERROR(EINVAL);
+
+                if (memchr_inv(&eofb.pad32, 0, sizeof(eofb.pad32)) ||
+                    memchr_inv(eofb.pad64, 0, sizeof(eofb.pad64)))
+                        return -XFS_ERROR(EINVAL);
+
+                error = xfs_icache_free_eofblocks(mp, &eofb);
+                return -error;
+        }
+
         default:
                 return -ENOTTY;
         }