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staging: erofs: remove clusterbits in sbi

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clustersize can now be set on per-file basis
rather than per-filesystem basis.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190731155752.210602-19-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gao Xiang 2019-07-31 23:57:48 +08:00 committed by Greg Kroah-Hartman
parent 97e86a858b
commit eace994a11
3 changed files with 1 additions and 16 deletions
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5
drivers/staging/erofs/internal.h
View File

@ -77,8 +77,6 @@ struct erofs_sb_info {
struct list_head list;
struct mutex umount_mutex;
/* cluster size in bit shift */
unsigned char clusterbits;
/* the dedicated workstation for compression */
struct radix_tree_root workstn_tree;
@ -248,9 +246,6 @@ static inline int erofs_wait_on_workgroup_freezed(struct erofs_workgroup *grp)
/* hard limit of pages per compressed cluster */
#define Z_EROFS_CLUSTER_MAX_PAGES (CONFIG_EROFS_FS_CLUSTER_PAGE_LIMIT)
#define EROFS_PCPUBUF_NR_PAGES Z_EROFS_CLUSTER_MAX_PAGES
/* page count of a compressed cluster */
#define erofs_clusterpages(sbi) ((1 << (sbi)->clusterbits) / PAGE_SIZE)
#else
#define EROFS_PCPUBUF_NR_PAGES 0
#endif /* !CONFIG_EROFS_FS_ZIP */

9
drivers/staging/erofs/super.c
View File

@ -124,15 +124,6 @@ static int superblock_read(struct super_block *sb)
sbi->xattr_blkaddr = le32_to_cpu(layout->xattr_blkaddr);
#endif
sbi->islotbits = ffs(sizeof(struct erofs_inode_v1)) - 1;
#ifdef CONFIG_EROFS_FS_ZIP
/* TODO: clusterbits should be related to inode */
sbi->clusterbits = blkszbits;
if (1 << (sbi->clusterbits - PAGE_SHIFT) > Z_EROFS_CLUSTER_MAX_PAGES)
errln("clusterbits %u is not supported on this kernel",
sbi->clusterbits);
#endif
sbi->root_nid = le16_to_cpu(layout->root_nid);
sbi->inos = le64_to_cpu(layout->inos);

3
drivers/staging/erofs/zmap.c
View File

@ -13,13 +13,12 @@
int z_erofs_fill_inode(struct inode *inode)
{
struct erofs_vnode *const vi = EROFS_V(inode);
struct super_block *const sb = inode->i_sb;
if (vi->datamode == EROFS_INODE_FLAT_COMPRESSION_LEGACY) {
vi->z_advise = 0;
vi->z_algorithmtype[0] = 0;
vi->z_algorithmtype[1] = 0;
vi->z_logical_clusterbits = EROFS_SB(sb)->clusterbits;
vi->z_logical_clusterbits = LOG_BLOCK_SIZE;
vi->z_physical_clusterbits[0] = vi->z_logical_clusterbits;
vi->z_physical_clusterbits[1] = vi->z_logical_clusterbits;
set_bit(EROFS_V_Z_INITED_BIT, &vi->flags);