[PATCH v8 17/19] xfs: add pre-content fsnotify hook for write faults

Josef Bacik
2024-11-15T15:31:56Z

xfs has it's own handling for write faults, so we need to add the
pre-content fsnotify hook for this case. Reads go through filemap_fault
so they're handled properly there.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
fs/xfs/xfs_file.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index ca47cae5a40a..4fe89770ecb5 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1458,6 +1458,10 @@ xfs_write_fault(
unsigned int lock_mode = XFS_MMAPLOCK_SHARED;
vm_fault_t ret;

+ ret = filemap_fsnotify_fault(vmf);
+ if (unlikely(ret))
+ return ret;
+
sb_start_pagefault(inode->i_sb);
file_update_time(vmf->vma->vm_file);

--
2.43.0