diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 1 | ||||
| -rw-r--r-- | include/linux/writeback.h | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index a5dbfa20f8d7..6bf369095d2e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1583,6 +1583,7 @@ struct super_block { spinlock_t s_inode_wblist_lock; struct list_head s_inodes_wb; /* writeback inodes */ + long s_min_writeback_pages; } __randomize_layout; static inline struct user_namespace *i_user_ns(const struct inode *inode) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 22dd4adc5667..49e1dd96f43e 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -374,4 +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 */ |