diff options
| author | Lorenzo Stoakes <lorenzo.stoakes@oracle.com> | 2025-06-16 20:33:28 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-06-19 13:56:57 +0200 |
| commit | 9d5403b1036cdcd4be0f9f5568612c0e60e73d79 (patch) | |
| tree | 49858f96630c59ed99ce497aa34c2df8925792e9 /fs/ntfs3/file.c | |
| parent | 951ea2f4844c22833f8c3201103c7ed817e7e377 (diff) | |
fs: convert most other generic_file_*mmap() users to .mmap_prepare()
Update nearly all generic_file_mmap() and generic_file_readonly_mmap()
callers to use generic_file_mmap_prepare() and
generic_file_readonly_mmap_prepare() respectively.
We update blkdev, 9p, afs, erofs, ext2, nfs, ntfs3, smb, ubifs and vboxsf
file systems this way.
Remaining users we cannot yet update are ecryptfs, fuse and cramfs. The
former two are nested file systems that must support any underlying file
ssytem, and cramfs inserts a mixed mapping which currently requires a VMA.
Once all file systems have been converted to mmap_prepare(), we can then
update nested file systems.
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Link: https://lore.kernel.org/08db85970d89b17a995d2cffae96fb4cc462377f.1750099179.git.lorenzo.stoakes@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/ntfs3/file.c')
| -rw-r--r-- | fs/ntfs3/file.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index 1e99a35691cd..7f2ec1c7106c 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -261,14 +261,15 @@ out: } /* - * ntfs_file_mmap - file_operations::mmap + * ntfs_file_mmap_prepare - file_operations::mmap_prepare */ -static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma) +static int ntfs_file_mmap_prepare(struct vm_area_desc *desc) { + struct file *file = desc->file; struct inode *inode = file_inode(file); struct ntfs_inode *ni = ntfs_i(inode); - u64 from = ((u64)vma->vm_pgoff << PAGE_SHIFT); - bool rw = vma->vm_flags & VM_WRITE; + u64 from = ((u64)desc->pgoff << PAGE_SHIFT); + bool rw = desc->vm_flags & VM_WRITE; int err; if (unlikely(ntfs3_forced_shutdown(inode->i_sb))) @@ -291,7 +292,7 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma) if (rw) { u64 to = min_t(loff_t, i_size_read(inode), - from + vma->vm_end - vma->vm_start); + from + desc->end - desc->start); if (is_sparsed(ni)) { /* Allocate clusters for rw map. */ @@ -319,7 +320,7 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma) } } - err = generic_file_mmap(file, vma); + err = generic_file_mmap_prepare(desc); out: return err; } @@ -1331,7 +1332,7 @@ const struct file_operations ntfs_file_operations = { #endif .splice_read = ntfs_file_splice_read, .splice_write = ntfs_file_splice_write, - .mmap = ntfs_file_mmap, + .mmap_prepare = ntfs_file_mmap_prepare, .open = ntfs_file_open, .fsync = generic_file_fsync, .fallocate = ntfs_fallocate, |