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authorMark Fasheh <mark.fasheh@oracle.com>2007-02-09 20:24:12 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 15:02:08 -0700
commit9517bac6cc7a7aa4fee63cb38a32cb6014e264c7 (patch)
tree3cac0c18d0cacc316e0e8a60f483282d6f991779 /fs/ocfs2/file.h
parent89488984ac23b0580f959b9ee549f2fcb1c2f194 (diff)
downloadop-kernel-dev-9517bac6cc7a7aa4fee63cb38a32cb6014e264c7.zip
op-kernel-dev-9517bac6cc7a7aa4fee63cb38a32cb6014e264c7.tar.gz
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.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index e2f6551..2c4460f 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);
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