diff options
Diffstat (limited to 'fs/erofs/compress.h')
| -rw-r--r-- | fs/erofs/compress.h | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h index 7bfe251680ec..2704d7a592a5 100644 --- a/fs/erofs/compress.h +++ b/fs/erofs/compress.h @@ -11,6 +11,7 @@ struct z_erofs_decompress_req { struct super_block *sb; struct page **in, **out; + unsigned int inpages, outpages; unsigned short pageofs_in, pageofs_out; unsigned int inputsize, outputsize; @@ -29,29 +30,8 @@ struct z_erofs_decompressor { char *name; }; -/* some special page->private (unsigned long, see below) */ #define Z_EROFS_SHORTLIVED_PAGE (-1UL << 2) -#define Z_EROFS_PREALLOCATED_PAGE (-2UL << 2) - -/* - * For all pages in a pcluster, page->private should be one of - * Type Last 2bits page->private - * short-lived page 00 Z_EROFS_SHORTLIVED_PAGE - * preallocated page (tryalloc) 00 Z_EROFS_PREALLOCATED_PAGE - * cached/managed page 00 pointer to z_erofs_pcluster - * online page (file-backed, 01/10/11 sub-index << 2 | count - * some pages can be used for inplace I/O) - * - * page->mapping should be one of - * Type page->mapping - * short-lived page NULL - * preallocated page NULL - * cached/managed page non-NULL or NULL (invalidated/truncated page) - * online page non-NULL - * - * For all managed pages, PG_private should be set with 1 extra refcount, - * which is used for page reclaim / migration. - */ +#define Z_EROFS_PREALLOCATED_FOLIO ((void *)(-2UL << 2)) /* * Currently, short-lived pages are pages directly from buddy system @@ -80,7 +60,6 @@ extern const struct z_erofs_decompressor *z_erofs_decomp[]; struct z_erofs_stream_dctx { struct z_erofs_decompress_req *rq; - unsigned int inpages, outpages; /* # of {en,de}coded pages */ int no, ni; /* the current {en,de}coded page # */ unsigned int avail_out; /* remaining bytes in the decoded buffer */ |