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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-07 20:03:24 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-07 20:03:24 +0300 |
commit | eb5699ba31558bdb2cee6ebde3d0a68091e47dce (patch) | |
tree | 3aeab3158f7ae43431405f3aa4f2e1fa3d103206 /fs/squashfs/page_actor.h | |
parent | b5a8466d37d30cfcc8015789f4a3f0c44b6c7bc6 (diff) | |
parent | b99695580bfc1f91364023c673681ddb88e375dc (diff) | |
download | linux-eb5699ba31558bdb2cee6ebde3d0a68091e47dce.tar.xz |
Merge tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc updates from Andrew Morton:
"Updates to various subsystems which I help look after. lib, ocfs2,
fatfs, autofs, squashfs, procfs, etc. A relatively small amount of
material this time"
* tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits)
scripts/gdb: ensure the absolute path is generated on initial source
MAINTAINERS: kunit: add David Gow as a maintainer of KUnit
mailmap: add linux.dev alias for Brendan Higgins
mailmap: update Kirill's email
profile: setup_profiling_timer() is moslty not implemented
ocfs2: fix a typo in a comment
ocfs2: use the bitmap API to simplify code
ocfs2: remove some useless functions
lib/mpi: fix typo 'the the' in comment
proc: add some (hopefully) insightful comments
bdi: remove enum wb_congested_state
kernel/hung_task: fix address space of proc_dohung_task_timeout_secs
lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t()
squashfs: support reading fragments in readahead call
squashfs: implement readahead
squashfs: always build "file direct" version of page actor
Revert "squashfs: provide backing_dev_info in order to disable read-ahead"
fs/ocfs2: Fix spelling typo in comment
ia64: old_rr4 added under CONFIG_HUGETLB_PAGE
proc: fix test for "vsyscall=xonly" boot option
...
Diffstat (limited to 'fs/squashfs/page_actor.h')
-rw-r--r-- | fs/squashfs/page_actor.h | 57 |
1 files changed, 13 insertions, 44 deletions
diff --git a/fs/squashfs/page_actor.h b/fs/squashfs/page_actor.h index 2e3073ace009..24841d28bc0f 100644 --- a/fs/squashfs/page_actor.h +++ b/fs/squashfs/page_actor.h @@ -6,63 +6,29 @@ * Phillip Lougher <phillip@squashfs.org.uk> */ -#ifndef CONFIG_SQUASHFS_FILE_DIRECT -struct squashfs_page_actor { - void **page; - int pages; - int length; - int next_page; -}; - -static inline struct squashfs_page_actor *squashfs_page_actor_init(void **page, - int pages, int length) -{ - struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL); - - if (actor == NULL) - return NULL; - - actor->length = length ? : pages * PAGE_SIZE; - actor->page = page; - actor->pages = pages; - actor->next_page = 0; - return actor; -} - -static inline void *squashfs_first_page(struct squashfs_page_actor *actor) -{ - actor->next_page = 1; - return actor->page[0]; -} - -static inline void *squashfs_next_page(struct squashfs_page_actor *actor) -{ - return actor->next_page == actor->pages ? NULL : - actor->page[actor->next_page++]; -} - -static inline void squashfs_finish_page(struct squashfs_page_actor *actor) -{ - /* empty */ -} -#else struct squashfs_page_actor { union { void **buffer; struct page **page; }; void *pageaddr; + void *tmp_buffer; void *(*squashfs_first_page)(struct squashfs_page_actor *); void *(*squashfs_next_page)(struct squashfs_page_actor *); void (*squashfs_finish_page)(struct squashfs_page_actor *); int pages; int length; int next_page; + int alloc_buffer; + int returned_pages; + pgoff_t next_index; }; -extern struct squashfs_page_actor *squashfs_page_actor_init(void **, int, int); -extern struct squashfs_page_actor *squashfs_page_actor_init_special(struct page - **, int, int); +extern struct squashfs_page_actor *squashfs_page_actor_init(void **buffer, + int pages, int length); +extern struct squashfs_page_actor *squashfs_page_actor_init_special( + struct squashfs_sb_info *msblk, + struct page **page, int pages, int length); static inline void *squashfs_first_page(struct squashfs_page_actor *actor) { return actor->squashfs_first_page(actor); @@ -75,5 +41,8 @@ static inline void squashfs_finish_page(struct squashfs_page_actor *actor) { actor->squashfs_finish_page(actor); } -#endif +static inline void squashfs_actor_nobuff(struct squashfs_page_actor *actor) +{ + actor->alloc_buffer = 0; +} #endif |