From: Vladimir Saveliev <vs@xxxxxxxxxxx>
This patch makes reiserfs to use AOP_FLAG_CONT_EXPAND
in order to get rid of the special generic_cont_expand routine
Signed-off-by: Vladimir Saveliev <vs@xxxxxxxxxxx>
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
---
---
fs/reiserfs/inode.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
Index: linux-2.6/fs/reiserfs/inode.c
===================================================================
--- linux-2.6.orig/fs/reiserfs/inode.c
+++ linux-2.6/fs/reiserfs/inode.c
@@ -2562,13 +2562,20 @@ static int reiserfs_write_begin(struct f
int ret;
int old_ref = 0;
+ inode = mapping->host;
+ *fsdata = 0;
+ if (flags & AOP_FLAG_CONT_EXPAND &&
+ (pos & (inode->i_sb->s_blocksize - 1)) == 0) {
+ pos ++;
+ *fsdata = (void *)(unsigned long)flags;
+ }
+
index = pos >> PAGE_CACHE_SHIFT;
page = __grab_cache_page(mapping, index);
if (!page)
return -ENOMEM;
*pagep = page;
- inode = mapping->host;
reiserfs_wait_on_write_block(inode->i_sb);
fix_tail_page_for_writing(page);
if (reiserfs_transaction_running(inode->i_sb)) {
@@ -2678,6 +2685,8 @@ static int reiserfs_write_end(struct fil
struct reiserfs_transaction_handle *th;
unsigned start;
+ if ((unsigned long)fsdata & AOP_FLAG_CONT_EXPAND)
+ pos ++;
reiserfs_wait_on_write_block(inode->i_sb);
if (reiserfs_transaction_running(inode->i_sb))
@@ -3066,7 +3075,7 @@ int reiserfs_setattr(struct dentry *dent
}
/* fill in hole pointers in the expanding truncate case. */
if (attr->ia_size > inode->i_size) {
- error = generic_cont_expand(inode, attr->ia_size);
+ error = generic_cont_expand_simple(inode, attr->ia_size);
if (REISERFS_I(inode)->i_prealloc_count > 0) {
int err;
struct reiserfs_transaction_handle th;
--
-
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