diff options
Diffstat (limited to 'include/linux/writeback.h')
| -rw-r--r-- | include/linux/writeback.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 102071ffedcb..f48e8ccffe81 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -189,6 +189,13 @@ void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi, void inode_wait_for_writeback(struct inode *inode); void inode_io_list_del(struct inode *inode); +static inline xa_mark_t wbc_to_tag(struct writeback_control *wbc) +{ + if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages) + return PAGECACHE_TAG_TOWRITE; + return PAGECACHE_TAG_DIRTY; +} + #ifdef CONFIG_CGROUP_WRITEBACK #include <linux/cgroup.h> @@ -367,4 +374,9 @@ bool redirty_page_for_writepage(struct writeback_control *, struct page *); void sb_mark_inode_writeback(struct inode *inode); void sb_clear_inode_writeback(struct inode *inode); +/* + * 4MB minimal write chunk size + */ +#define MIN_WRITEBACK_PAGES (4096UL >> (PAGE_SHIFT - 10)) + #endif /* WRITEBACK_H */ |