diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/blkdev.h | 8 | ||||
| -rw-r--r-- | include/linux/fs.h | 8 | ||||
| -rw-r--r-- | include/linux/jbd2.h | 2 | ||||
| -rw-r--r-- | include/linux/percpu_counter.h | 10 | ||||
| -rw-r--r-- | include/linux/writeback.h | 2 |
5 files changed, 29 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 646b462d04d..5027a599077 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -891,6 +891,14 @@ static inline int sb_issue_discard(struct super_block *sb, sector_t block, nr_blocks << (sb->s_blocksize_bits - 9), gfp_mask, flags); } +static inline int sb_issue_zeroout(struct super_block *sb, sector_t block, + sector_t nr_blocks, gfp_t gfp_mask) +{ + return blkdev_issue_zeroout(sb->s_bdev, + block << (sb->s_blocksize_bits - 9), + nr_blocks << (sb->s_blocksize_bits - 9), + gfp_mask); +} extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm); diff --git a/include/linux/fs.h b/include/linux/fs.h index b2a6009cba1..6ed7ace74b7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -32,6 +32,12 @@ #define SEEK_END 2 /* seek relative to end of file */ #define SEEK_MAX SEEK_END +struct fstrim_range { + uint64_t start; + uint64_t len; + uint64_t minlen; +}; + /* And dynamically-tunable limits and defaults: */ struct files_stat_struct { unsigned long nr_files; /* read only */ @@ -317,6 +323,7 @@ struct inodes_stat_t { #define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */ #define FIFREEZE _IOWR('X', 119, int) /* Freeze */ #define FITHAW _IOWR('X', 120, int) /* Thaw */ +#define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) @@ -1604,6 +1611,7 @@ struct super_operations { ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t); #endif int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t); + int (*trim_fs) (struct super_block *, struct fstrim_range *); }; /* diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 0b52924a0cb..2ae86aa21fc 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -395,7 +395,7 @@ struct jbd2_inode { struct inode *i_vfs_inode; /* Flags of inode [j_list_lock] */ - unsigned int i_flags; + unsigned long i_flags; }; struct jbd2_revoke_table_s; diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h index 8a7d510ffa9..46f6ba56fa9 100644 --- a/include/linux/percpu_counter.h +++ b/include/linux/percpu_counter.h @@ -78,6 +78,11 @@ static inline s64 percpu_counter_read_positive(struct percpu_counter *fbc) return 1; } +static inline int percpu_counter_initialized(struct percpu_counter *fbc) +{ + return (fbc->counters != NULL); +} + #else struct percpu_counter { @@ -143,6 +148,11 @@ static inline s64 percpu_counter_sum(struct percpu_counter *fbc) return percpu_counter_read(fbc); } +static inline int percpu_counter_initialized(struct percpu_counter *fbc) +{ + return 1; +} + #endif /* CONFIG_SMP */ static inline void percpu_counter_inc(struct percpu_counter *fbc) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index d5c7aaadda5..09eec350054 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -141,6 +141,8 @@ typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc, 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); |