From: Jan Kara <jack@suse.cz>
Date: Thu, 21 Nov 2024 10:18:23 +0000 (+0100)
Subject: ext4: add pre-content fsnotify hook for DAX faults
X-Git-Tag: v6.14-rc1~129^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bb480760ffc7018e21ee6f60241c2b99ff26ee0e;p=thirdparty%2Fkernel%2Flinux.git

ext4: add pre-content fsnotify hook for DAX faults

ext4 has its own handling for DAX faults. Add the pre-content fsnotify
hook for this case.

Signed-off-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3bd96c3d4cd0c..a5205149adba3 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -756,6 +756,9 @@ retry:
 			return VM_FAULT_SIGBUS;
 		}
 	} else {
+		result = filemap_fsnotify_fault(vmf);
+		if (unlikely(result))
+			return result;
 		filemap_invalidate_lock_shared(mapping);
 	}
 	result = dax_iomap_fault(vmf, order, &pfn, &error, &ext4_iomap_ops);