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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-12-26 16:38:43 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-01-10 14:05:46 +0900
commit622daaff0a8975fb5c5b95f24f3234550ba32e92 (patch)
tree5ae5de9044f962471fa2694654134f5b58f73ace /fs/nilfs2/nilfs.h
parent27e6c7a3ce29ae5fa5bec4ed5917f8508bfac120 (diff)
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nilfs2: fiemap support
This adds fiemap to nilfs. Two new functions, nilfs_fiemap and nilfs_find_uncommitted_extent are added. nilfs_fiemap() implements the fiemap inode operation, and nilfs_find_uncommitted_extent() helps to get a range of data blocks whose physical location has not been determined. nilfs_fiemap() collects extent information by looping through nilfs_bmap_lookup_contig and nilfs_find_uncommitted_extent routines. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/nilfs.h')
-rw-r--r--fs/nilfs2/nilfs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 0ca98823db5..a0e21363e86 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -264,6 +264,8 @@ extern int nilfs_set_file_dirty(struct nilfs_sb_info *, struct inode *,
unsigned);
extern int nilfs_mark_inode_dirty(struct inode *);
extern void nilfs_dirty_inode(struct inode *);
+int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len);
/* super.c */
extern struct inode *nilfs_alloc_inode(struct super_block *);