On Sat, Jul 02, 2022 at 08:29:27PM +0200, Christophe JAILLET wrote: > In order to introduce a bitmap_size() function in the bitmap API, we have > to rename functions with a similar name. > > Add a "ntfs3_" prefix and change bitmap_size() into ntfs3_bitmap_size(). > > No functional change. > > Signed-off-by: Christophe JAILLET <[email protected]> > --- > fs/ntfs3/bitmap.c | 4 ++-- > fs/ntfs3/fsntfs.c | 2 +- > fs/ntfs3/index.c | 6 +++--- > fs/ntfs3/ntfs_fs.h | 2 +- > fs/ntfs3/super.c | 2 +- > 5 files changed, 8 insertions(+), 8 deletions(-) > > diff --git a/fs/ntfs3/bitmap.c b/fs/ntfs3/bitmap.c > index e3b5680fd516..f98327453d83 100644 > --- a/fs/ntfs3/bitmap.c > +++ b/fs/ntfs3/bitmap.c > @@ -661,7 +661,7 @@ int wnd_init(struct wnd_bitmap *wnd, struct super_block > *sb, size_t nbits) > wnd->total_zeroes = nbits; > wnd->extent_max = MINUS_ONE_T; > wnd->zone_bit = wnd->zone_end = 0; > - wnd->nwnd = bytes_to_block(sb, bitmap_size(nbits)); > + wnd->nwnd = bytes_to_block(sb, ntfs3_bitmap_size(nbits)); > wnd->bits_last = nbits & (wbits - 1); > if (!wnd->bits_last) > wnd->bits_last = wbits; > @@ -1323,7 +1323,7 @@ int wnd_extend(struct wnd_bitmap *wnd, size_t new_bits) > return -EINVAL; > > /* Align to 8 byte boundary. */ > - new_wnd = bytes_to_block(sb, bitmap_size(new_bits)); > + new_wnd = bytes_to_block(sb, ntfs3_bitmap_size(new_bits)); > new_last = new_bits & (wbits - 1); > if (!new_last) > new_last = wbits; > diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c > index 3de5700a9b83..9c74d88ce0f0 100644 > --- a/fs/ntfs3/fsntfs.c > +++ b/fs/ntfs3/fsntfs.c > @@ -493,7 +493,7 @@ static int ntfs_extend_mft(struct ntfs_sb_info *sbi) > ni->mi.dirty = true; > > /* Step 2: Resize $MFT::BITMAP. */ > - new_bitmap_bytes = bitmap_size(new_mft_total); > + new_bitmap_bytes = ntfs3_bitmap_size(new_mft_total); > > err = attr_set_size(ni, ATTR_BITMAP, NULL, 0, &sbi->mft.bitmap.run, > new_bitmap_bytes, &new_bitmap_bytes, true, NULL); > diff --git a/fs/ntfs3/index.c b/fs/ntfs3/index.c > index 84ccc1409874..5c5ea05a5ef1 100644 > --- a/fs/ntfs3/index.c > +++ b/fs/ntfs3/index.c > @@ -1353,7 +1353,7 @@ static int indx_create_allocate(struct ntfs_index > *indx, struct ntfs_inode *ni, > > alloc->nres.valid_size = alloc->nres.data_size = cpu_to_le64(data_size); > > - err = ni_insert_resident(ni, bitmap_size(1), ATTR_BITMAP, in->name, > + err = ni_insert_resident(ni, ntfs3_bitmap_size(1), ATTR_BITMAP, > in->name, > in->name_len, &bitmap, NULL, NULL); > if (err) > goto out2; > @@ -1415,7 +1415,7 @@ static int indx_add_allocate(struct ntfs_index *indx, > struct ntfs_inode *ni, > if (bmp) { > /* Increase bitmap. */ > err = attr_set_size(ni, ATTR_BITMAP, in->name, in->name_len, > - &indx->bitmap_run, bitmap_size(bit + 1), > + &indx->bitmap_run, ntfs3_bitmap_size(bit + > 1), > NULL, true, NULL); > if (err) > goto out1; > @@ -1973,7 +1973,7 @@ static int indx_shrink(struct ntfs_index *indx, struct > ntfs_inode *ni, > if (err) > return err; > > - bpb = bitmap_size(bit); > + bpb = ntfs3_bitmap_size(bit); > if (bpb * 8 == nbits) > return 0; > > diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h > index 55d686e3c4ec..85210e610a3a 100644 > --- a/fs/ntfs3/ntfs_fs.h > +++ b/fs/ntfs3/ntfs_fs.h > @@ -945,7 +945,7 @@ static inline bool run_is_empty(struct runs_tree *run) > } > > /* NTFS uses quad aligned bitmaps. */ > -static inline size_t bitmap_size(size_t bits) > +static inline size_t ntfs3_bitmap_size(size_t bits) > { > return ALIGN((bits + 7) >> 3, 8); > }
Here everything looks OK for me. NTFS3 has their own good reasons to reserve 64-bit words for their bitmaps, and they need their own functions for this. And the prefix looks OK because it underlines that this is a local story. Maybe we can turn it into BITS_TO_LLONGS() and put into include/linux/bitops.h... But unless we have another subsystem that needs it, I'm OK with current approach. Acked-by: Yury Norov <[email protected]> > diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c > index b41d7c824a50..7d48f886ac82 100644 > --- a/fs/ntfs3/super.c > +++ b/fs/ntfs3/super.c > @@ -1101,7 +1101,7 @@ static int ntfs_fill_super(struct super_block *sb, > struct fs_context *fc) > > /* Check bitmap boundary. */ > tt = sbi->used.bitmap.nbits; > - if (inode->i_size < bitmap_size(tt)) { > + if (inode->i_size < ntfs3_bitmap_size(tt)) { > err = -EINVAL; > goto put_inode_out; > } > -- > 2.34.1 -- dm-devel mailing list [email protected] https://listman.redhat.com/mailman/listinfo/dm-devel
