nilfs2: remove timedwait ioctl command

This removes NILFS_IOCTL_TIMEDWAIT command from ioctl interface along
with the related flags and wait queue.

The command is terrible because it just sleeps in the ioctl.  I prefer
to avoid this by devising means of event polling in userland program.
By reconsidering the userland GC daemon, I found this is possible
without changing behaviour of the daemon and sacrificing efficiency.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 9cd3c113f052..75da37306964 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -37,7 +37,6 @@ enum {
         THE_NILFS_LOADED,       /* Roll-back/roll-forward has done and
                                    the latest checkpoint was loaded */
         THE_NILFS_DISCONTINUED, /* 'next' pointer chain has broken */
-        THE_NILFS_COND_NONGC_WRITE,     /* Condition to wake up cleanerd */
 };
 
 /**
@@ -74,7 +73,6 @@ enum {
  * @ns_gc_dat: shadow inode of the DAT file inode for GC
  * @ns_gc_inodes: dummy inodes to keep live blocks
  * @ns_gc_inodes_h: hash list to keep dummy inode holding live blocks
- * @ns_cleanerd_wq: wait queue for cleanerd
  * @ns_blocksize_bits: bit length of block size
  * @ns_nsegments: number of segments in filesystem
  * @ns_blocks_per_segment: number of blocks per segment
@@ -151,9 +149,6 @@ struct the_nilfs {
         struct list_head        ns_gc_inodes;
         struct hlist_head      *ns_gc_inodes_h;
 
-        /* cleanerd */
-        wait_queue_head_t       ns_cleanerd_wq;
-
         /* Disk layout information (static) */
         unsigned int            ns_blocksize_bits;
         unsigned long           ns_nsegments;
@@ -186,7 +181,6 @@ static inline int nilfs_##name(struct the_nilfs *nilfs)			\
 THE_NILFS_FNS(INIT, init)
 THE_NILFS_FNS(LOADED, loaded)
 THE_NILFS_FNS(DISCONTINUED, discontinued)
-THE_NILFS_FNS(COND_NONGC_WRITE, cond_nongc_write)
 
 void nilfs_set_last_segment(struct the_nilfs *, sector_t, u64, __u64);
 struct the_nilfs *alloc_nilfs(struct block_device *);