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 <[email protected]> --- fs/xfs/xfs_file.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 4cdc54dc9686..585a8c2eea0f 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1325,14 +1325,28 @@ __xfs_filemap_fault( bool write_fault) { struct inode *inode = file_inode(vmf->vma->vm_file); + struct file *fpin = NULL; + vm_fault_t ret; trace_xfs_filemap_fault(XFS_I(inode), order, write_fault); - if (write_fault) - return xfs_write_fault(vmf, order); if (IS_DAX(inode)) return xfs_dax_read_fault(vmf, order); - return filemap_fault(vmf); + + if (!write_fault) + return filemap_fault(vmf); + + ret = filemap_maybe_emit_fsnotify_event(vmf, &fpin); + if (unlikely(ret)) { + if (fpin) + fput(fpin); + return ret; + } else if (fpin) { + fput(fpin); + return VM_FAULT_RETRY; + } + + return xfs_write_fault(vmf, order); } static inline bool -- 2.43.0
