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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-02-09 20:24:12 -0800 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-04-26 15:02:08 -0700 |
| commit | 9517bac6cc7a7aa4fee63cb38a32cb6014e264c7 (patch) | |
| tree | 3cac0c18d0cacc316e0e8a60f483282d6f991779 /fs/ocfs2/file.h | |
| parent | 89488984ac23b0580f959b9ee549f2fcb1c2f194 (diff) | |
| download | linux-9517bac6cc7a7aa4fee63cb38a32cb6014e264c7.tar.bz2 | |
ocfs2: teach ocfs2_file_aio_write() about sparse files
Unfortunately, ocfs2 can no longer make use of generic_file_aio_write_nlock()
because allocating writes will require zeroing of pages adjacent to the I/O
for cluster sizes greater than page size.
Implement a custom file write here, which can order page locks for zeroing.
This also has the advantage that cluster locks can easily be ordered outside
of the page locks.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/file.h')
| -rw-r--r-- | fs/ocfs2/file.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h index e2f6551604d0..2c4460fced52 100644 --- a/fs/ocfs2/file.h +++ b/fs/ocfs2/file.h @@ -46,6 +46,10 @@ int ocfs2_do_extend_allocation(struct ocfs2_super *osb, struct ocfs2_alloc_context *data_ac, struct ocfs2_alloc_context *meta_ac, enum ocfs2_alloc_restarted *reason); +int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_dinode *di, + u32 clusters_to_add, + struct ocfs2_alloc_context **data_ac, + struct ocfs2_alloc_context **meta_ac); int ocfs2_setattr(struct dentry *dentry, struct iattr *attr); int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); |