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-rw-r--r--ANDROID_3.4.5/include/linux/writeback.h201
1 files changed, 0 insertions, 201 deletions
diff --git a/ANDROID_3.4.5/include/linux/writeback.h b/ANDROID_3.4.5/include/linux/writeback.h
deleted file mode 100644
index a2b84f59..00000000
--- a/ANDROID_3.4.5/include/linux/writeback.h
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * include/linux/writeback.h
- */
-#ifndef WRITEBACK_H
-#define WRITEBACK_H
-
-#include <linux/sched.h>
-#include <linux/fs.h>
-
-DECLARE_PER_CPU(int, dirty_throttle_leaks);
-
-/*
- * The 1/4 region under the global dirty thresh is for smooth dirty throttling:
- *
- * (thresh - thresh/DIRTY_FULL_SCOPE, thresh)
- *
- * Further beyond, all dirtier tasks will enter a loop waiting (possibly long
- * time) for the dirty pages to drop, unless written enough pages.
- *
- * The global dirty threshold is normally equal to the global dirty limit,
- * except when the system suddenly allocates a lot of anonymous memory and
- * knocks down the global dirty threshold quickly, in which case the global
- * dirty limit will follow down slowly to prevent livelocking all dirtier tasks.
- */
-#define DIRTY_SCOPE 8
-#define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2)
-
-struct backing_dev_info;
-
-/*
- * fs/fs-writeback.c
- */
-enum writeback_sync_modes {
- WB_SYNC_NONE, /* Don't wait on anything */
- WB_SYNC_ALL, /* Wait on every mapping */
-};
-
-/*
- * why some writeback work was initiated
- */
-enum wb_reason {
- WB_REASON_BACKGROUND,
- WB_REASON_TRY_TO_FREE_PAGES,
- WB_REASON_SYNC,
- WB_REASON_PERIODIC,
- WB_REASON_LAPTOP_TIMER,
- WB_REASON_FREE_MORE_MEM,
- WB_REASON_FS_FREE_SPACE,
- WB_REASON_FORKER_THREAD,
-
- WB_REASON_MAX,
-};
-extern const char *wb_reason_name[];
-
-/*
- * A control structure which tells the writeback code what to do. These are
- * always on the stack, and hence need no locking. They are always initialised
- * in a manner such that unspecified fields are set to zero.
- */
-struct writeback_control {
- enum writeback_sync_modes sync_mode;
- long nr_to_write; /* Write this many pages, and decrement
- this for each page written */
- long pages_skipped; /* Pages which were not written */
-
- /*
- * For a_ops->writepages(): if start or end are non-zero then this is
- * a hint that the filesystem need only write out the pages inside that
- * byterange. The byte at `end' is included in the writeout request.
- */
- loff_t range_start;
- loff_t range_end;
-
- unsigned for_kupdate:1; /* A kupdate writeback */
- unsigned for_background:1; /* A background writeback */
- unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */
- unsigned for_reclaim:1; /* Invoked from the page allocator */
- unsigned range_cyclic:1; /* range_start is cyclic */
-};
-
-/*
- * fs/fs-writeback.c
- */
-struct bdi_writeback;
-int inode_wait(void *);
-void writeback_inodes_sb(struct super_block *, enum wb_reason reason);
-void writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
- enum wb_reason reason);
-int writeback_inodes_sb_if_idle(struct super_block *, enum wb_reason reason);
-int writeback_inodes_sb_nr_if_idle(struct super_block *, unsigned long nr,
- enum wb_reason reason);
-void sync_inodes_sb(struct super_block *);
-long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages,
- enum wb_reason reason);
-long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
-void wakeup_flusher_threads(long nr_pages, enum wb_reason reason);
-
-/* writeback.h requires fs.h; it, too, is not included from here. */
-static inline void wait_on_inode(struct inode *inode)
-{
- might_sleep();
- wait_on_bit(&inode->i_state, __I_NEW, inode_wait, TASK_UNINTERRUPTIBLE);
-}
-static inline void inode_sync_wait(struct inode *inode)
-{
- might_sleep();
- wait_on_bit(&inode->i_state, __I_SYNC, inode_wait,
- TASK_UNINTERRUPTIBLE);
-}
-
-
-/*
- * mm/page-writeback.c
- */
-#ifdef CONFIG_BLOCK
-void laptop_io_completion(struct backing_dev_info *info);
-void laptop_sync_completion(void);
-void laptop_mode_sync(struct work_struct *work);
-void laptop_mode_timer_fn(unsigned long data);
-#else
-static inline void laptop_sync_completion(void) { }
-#endif
-void throttle_vm_writeout(gfp_t gfp_mask);
-bool zone_dirty_ok(struct zone *zone);
-
-extern unsigned long global_dirty_limit;
-
-/* These are exported to sysctl. */
-extern int dirty_background_ratio;
-extern unsigned long dirty_background_bytes;
-extern int vm_dirty_ratio;
-extern unsigned long vm_dirty_bytes;
-extern unsigned int dirty_writeback_interval;
-extern unsigned int dirty_expire_interval;
-extern int vm_highmem_is_dirtyable;
-extern int block_dump;
-extern int laptop_mode;
-
-extern int dirty_background_ratio_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-extern int dirty_background_bytes_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-extern int dirty_ratio_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-extern int dirty_bytes_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-
-struct ctl_table;
-int dirty_writeback_centisecs_handler(struct ctl_table *, int,
- void __user *, size_t *, loff_t *);
-
-void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty);
-unsigned long bdi_dirty_limit(struct backing_dev_info *bdi,
- unsigned long dirty);
-
-void __bdi_update_bandwidth(struct backing_dev_info *bdi,
- unsigned long thresh,
- unsigned long bg_thresh,
- unsigned long dirty,
- unsigned long bdi_thresh,
- unsigned long bdi_dirty,
- unsigned long start_time);
-
-void page_writeback_init(void);
-void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
- unsigned long nr_pages_dirtied);
-
-static inline void
-balance_dirty_pages_ratelimited(struct address_space *mapping)
-{
- balance_dirty_pages_ratelimited_nr(mapping, 1);
-}
-
-typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
- void *data);
-
-int generic_writepages(struct address_space *mapping,
- struct writeback_control *wbc);
-void tag_pages_for_writeback(struct address_space *mapping,
- pgoff_t start, pgoff_t end);
-int write_cache_pages(struct address_space *mapping,
- struct writeback_control *wbc, writepage_t writepage,
- void *data);
-int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
-void set_page_dirty_balance(struct page *page, int page_mkwrite);
-void writeback_set_ratelimit(void);
-void tag_pages_for_writeback(struct address_space *mapping,
- pgoff_t start, pgoff_t end);
-
-void account_page_redirty(struct page *page);
-
-/* pdflush.c */
-extern int nr_pdflush_threads; /* Global so it can be exported to sysctl
- read-only. */
-
-
-#endif /* WRITEBACK_H */