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| author | Tao Ma <tao.ma@oracle.com> | 2007-12-18 15:47:03 +0800 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-25 14:53:35 -0800 |
| commit | d659072f736837e56b6433d58e5315ad1d4d5ccf (patch) | |
| tree | 56882b7b36c6b60a8208f6ed5bee9904adc7b649 /fs/ocfs2/suballoc.c | |
| parent | 7f68fc28219be3b44ef4132f95c6506ff3e806b5 (diff) | |
| download | blackbird-op-linux-d659072f736837e56b6433d58e5315ad1d4d5ccf.tar.gz blackbird-op-linux-d659072f736837e56b6433d58e5315ad1d4d5ccf.zip | |
[PATCH 1/2] ocfs2: Add group extend for online resize
This patch adds the ability for a userspace program to request an extend of
last cluster group on an Ocfs2 file system. The request is made via ioctl,
OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is
obviously Ocfs2 specific.
tunefs.ocfs2 would call this for an online-resize operation if the last
cluster group isn't full.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/suballoc.c')
| -rw-r--r-- | fs/ocfs2/suballoc.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index 6df4dbf67d18..4391744e80f8 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -101,8 +101,6 @@ static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg static inline u32 ocfs2_desc_bitmap_to_cluster_off(struct inode *inode, u64 bg_blkno, u16 bg_bit_off); -static inline u64 ocfs2_which_cluster_group(struct inode *inode, - u32 cluster); static inline void ocfs2_block_to_cluster_group(struct inode *inode, u64 data_blkno, u64 *bg_blkno, @@ -131,9 +129,9 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl) } /* somewhat more expensive than our other checks, so use sparingly. */ -static int ocfs2_check_group_descriptor(struct super_block *sb, - struct ocfs2_dinode *di, - struct ocfs2_group_desc *gd) +int ocfs2_check_group_descriptor(struct super_block *sb, + struct ocfs2_dinode *di, + struct ocfs2_group_desc *gd) { unsigned int max_bits; @@ -1443,8 +1441,7 @@ static inline u32 ocfs2_desc_bitmap_to_cluster_off(struct inode *inode, /* given a cluster offset, calculate which block group it belongs to * and return that block offset. */ -static inline u64 ocfs2_which_cluster_group(struct inode *inode, - u32 cluster) +u64 ocfs2_which_cluster_group(struct inode *inode, u32 cluster) { struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); u32 group_no; |
