commit beaec07ba6af35d387643b76a2920a7a6e22207b
author Boaz Harrosh <bharrosh@panasas.com> Mon Oct 27 19:31:34 2008 +0200
committer Boaz Harrosh <bharrosh@panasas.com> Tue Mar 31 19:44:29 2009 +0300
tree 74ffd4738198424f698ae238e4d3164938ef5af7
parent 982980d753223fda3864038236b7b94e246895cb

exofs: address_space_operations

OK Now we start to read and write from osd-objects. We try to
collect at most contiguous pages as possible in a single write/read.
The first page index is the object's offset.

TODO:
   In 64-bit a single bio can carry at most 128 pages.
   Add support of chaining multiple bios

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>

fs/exofs/exofs.h

diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index 825454d..0276242 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -130,6 +130,9 @@
 /* inode.c               */
 void exofs_truncate(struct inode *inode);
 int exofs_setattr(struct dentry *, struct iattr *);
+int exofs_write_begin(struct file *file, struct address_space *mapping,
+		loff_t pos, unsigned len, unsigned flags,
+		struct page **pagep, void **fsdata);
 
 /*********************
  * operation vectors *
@@ -138,6 +141,9 @@
 extern const struct inode_operations exofs_file_inode_operations;
 extern const struct file_operations exofs_file_operations;
 
+/* inode.c           */
+extern const struct address_space_operations exofs_aops;
+
 /* symlink.c         */
 extern const struct inode_operations exofs_symlink_inode_operations;
 extern const struct inode_operations exofs_fast_symlink_inode_operations;