Add 'sync' argument to dax_iomap_fault(). It will be used to communicate the fact that synchronous fault is requested.
Signed-off-by: Jan Kara <[email protected]> --- fs/dax.c | 12 ++++++------ fs/ext2/file.c | 2 +- fs/ext4/file.c | 2 +- fs/xfs/xfs_file.c | 8 ++++---- include/linux/dax.h | 2 +- 5 files changed, 13 insertions(+), 13 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 75760f7bdf5d..44d9cce4399b 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1069,7 +1069,7 @@ static int dax_fault_return(int error) return VM_FAULT_SIGBUS; } -static int dax_iomap_pte_fault(struct vm_fault *vmf, +static int dax_iomap_pte_fault(struct vm_fault *vmf, bool sync, const struct iomap_ops *ops) { struct address_space *mapping = vmf->vma->vm_file->f_mapping; @@ -1300,7 +1300,7 @@ static int dax_pmd_load_hole(struct vm_fault *vmf, struct iomap *iomap, return VM_FAULT_FALLBACK; } -static int dax_iomap_pmd_fault(struct vm_fault *vmf, +static int dax_iomap_pmd_fault(struct vm_fault *vmf, bool sync, const struct iomap_ops *ops) { struct vm_area_struct *vma = vmf->vma; @@ -1422,7 +1422,7 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf, return result; } #else -static int dax_iomap_pmd_fault(struct vm_fault *vmf, +static int dax_iomap_pmd_fault(struct vm_fault *vmf, bool sync, const struct iomap_ops *ops) { return VM_FAULT_FALLBACK; @@ -1440,13 +1440,13 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf, * successfully. */ int dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size, - const struct iomap_ops *ops) + bool sync, const struct iomap_ops *ops) { switch (pe_size) { case PE_SIZE_PTE: - return dax_iomap_pte_fault(vmf, ops); + return dax_iomap_pte_fault(vmf, sync, ops); case PE_SIZE_PMD: - return dax_iomap_pmd_fault(vmf, ops); + return dax_iomap_pmd_fault(vmf, sync, ops); default: return VM_FAULT_FALLBACK; } diff --git a/fs/ext2/file.c b/fs/ext2/file.c index ff3a3636a5ca..430e6ecf4e0e 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -99,7 +99,7 @@ static int ext2_dax_fault(struct vm_fault *vmf) } down_read(&ei->dax_sem); - ret = dax_iomap_fault(vmf, PE_SIZE_PTE, &ext2_iomap_ops); + ret = dax_iomap_fault(vmf, PE_SIZE_PTE, false, &ext2_iomap_ops); up_read(&ei->dax_sem); if (vmf->flags & FAULT_FLAG_WRITE) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 9dda70edba74..d401403e5095 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -291,7 +291,7 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf, down_read(&EXT4_I(inode)->i_mmap_sem); } if (!IS_ERR(handle)) - result = dax_iomap_fault(vmf, pe_size, &ext4_iomap_ops); + result = dax_iomap_fault(vmf, pe_size, false, &ext4_iomap_ops); else result = VM_FAULT_SIGBUS; if (write) { diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 62db8ffa83b9..9fc8b5668578 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1032,7 +1032,7 @@ xfs_filemap_page_mkwrite( xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); if (IS_DAX(inode)) { - ret = dax_iomap_fault(vmf, PE_SIZE_PTE, &xfs_iomap_ops); + ret = dax_iomap_fault(vmf, PE_SIZE_PTE, false, &xfs_iomap_ops); } else { ret = iomap_page_mkwrite(vmf, &xfs_iomap_ops); ret = block_page_mkwrite_return(ret); @@ -1059,7 +1059,7 @@ xfs_filemap_fault( xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); if (IS_DAX(inode)) - ret = dax_iomap_fault(vmf, PE_SIZE_PTE, &xfs_iomap_ops); + ret = dax_iomap_fault(vmf, PE_SIZE_PTE, false, &xfs_iomap_ops); else ret = filemap_fault(vmf); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); @@ -1094,7 +1094,7 @@ xfs_filemap_huge_fault( } xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); - ret = dax_iomap_fault(vmf, pe_size, &xfs_iomap_ops); + ret = dax_iomap_fault(vmf, pe_size, false, &xfs_iomap_ops); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); if (vmf->flags & FAULT_FLAG_WRITE) @@ -1130,7 +1130,7 @@ xfs_filemap_pfn_mkwrite( if (vmf->pgoff >= size) ret = VM_FAULT_SIGBUS; else if (IS_DAX(inode)) - ret = dax_iomap_fault(vmf, PE_SIZE_PTE, &xfs_iomap_ops); + ret = dax_iomap_fault(vmf, PE_SIZE_PTE, false, &xfs_iomap_ops); xfs_iunlock(ip, XFS_MMAPLOCK_SHARED); sb_end_pagefault(inode->i_sb); return ret; diff --git a/include/linux/dax.h b/include/linux/dax.h index d0e32729ad1e..98950f4d127e 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -91,7 +91,7 @@ void dax_write_cache(struct dax_device *dax_dev, bool wc); ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops); int dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size, - const struct iomap_ops *ops); + bool sync, const struct iomap_ops *ops); int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index); int dax_invalidate_mapping_entry_sync(struct address_space *mapping, pgoff_t index); -- 2.12.3 _______________________________________________ Linux-nvdimm mailing list [email protected] https://lists.01.org/mailman/listinfo/linux-nvdimm
