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-rw-r--r--abs/core/kernel26/ext4.patch152
1 files changed, 0 insertions, 152 deletions
diff --git a/abs/core/kernel26/ext4.patch b/abs/core/kernel26/ext4.patch
deleted file mode 100644
index 40ecfde..0000000
--- a/abs/core/kernel26/ext4.patch
+++ /dev/null
@@ -1,152 +0,0 @@
-diff -ruaN linux-2.6.28.orig/fs/ext4/ext4.h linux-2.6.28/fs/ext4/ext4.h
---- linux-2.6.28.orig/fs/ext4/ext4.h 2008-12-24 23:26:37.000000000 +0000
-+++ linux-2.6.28/fs/ext4/ext4.h 2009-08-17 04:22:43.000000000 +0000
-@@ -254,6 +254,7 @@
- #define EXT4_STATE_NEW 0x00000002 /* inode is newly created */
- #define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */
- #define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */
-+#define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */
-
- /* Used to pass group descriptor data when online resize is done */
- struct ext4_new_group_input {
-@@ -301,7 +302,9 @@
- #define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
- #define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input)
- #define EXT4_IOC_MIGRATE _IO('f', 9)
-+ /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */
- /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
-+#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12)
-
- /*
- * ioctl commands in 32 bit emulation
-@@ -1088,6 +1091,7 @@
- extern void ext4_truncate(struct inode *);
- extern void ext4_set_inode_flags(struct inode *);
- extern void ext4_get_inode_flags(struct ext4_inode_info *);
-+extern int ext4_alloc_da_blocks(struct inode *inode);
- extern void ext4_set_aops(struct inode *inode);
- extern int ext4_writepage_trans_blocks(struct inode *);
- extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks);
-diff -ruaN linux-2.6.28.orig/fs/ext4/file.c linux-2.6.28/fs/ext4/file.c
---- linux-2.6.28.orig/fs/ext4/file.c 2008-12-24 23:26:37.000000000 +0000
-+++ linux-2.6.28/fs/ext4/file.c 2009-08-17 04:15:17.000000000 +0000
-@@ -33,6 +33,10 @@
- */
- static int ext4_release_file(struct inode *inode, struct file *filp)
- {
-+ if (EXT4_I(inode)->i_state & EXT4_STATE_DA_ALLOC_CLOSE) {
-+ ext4_alloc_da_blocks(inode);
-+ EXT4_I(inode)->i_state &= ~EXT4_STATE_DA_ALLOC_CLOSE;
-+ }
- /* if we are the last writer on the inode, drop the block reservation */
- if ((filp->f_mode & FMODE_WRITE) &&
- (atomic_read(&inode->i_writecount) == 1))
-diff -ruaN linux-2.6.28.orig/fs/ext4/inode.c linux-2.6.28/fs/ext4/inode.c
---- linux-2.6.28.orig/fs/ext4/inode.c 2008-12-24 23:26:37.000000000 +0000
-+++ linux-2.6.28/fs/ext4/inode.c 2009-08-17 04:34:48.000000000 +0000
-@@ -2686,6 +2686,42 @@
- return;
- }
-
-+/*
-+ * Force all delayed allocation blocks to be allocated for a given inode.
-+ */
-+int ext4_alloc_da_blocks(struct inode *inode)
-+{
-+ if (!EXT4_I(inode)->i_reserved_data_blocks &&
-+ !EXT4_I(inode)->i_reserved_meta_blocks)
-+ return 0;
-+ /*
-+ * We do something simple for now. The filemap_flush() will
-+ * also start triggering a write of the data blocks, which is
-+ * not strictly speaking necessary (and for users of
-+ * laptop_mode, not even desirable). However, to do otherwise
-+ * would require replicating code paths in:
-+ *
-+ * ext4_da_writepages() ->
-+ * write_cache_pages() ---> (via passed in callback function)
-+ * __mpage_da_writepage() -->
-+ * mpage_ad_bh_to_extent()
-+ * mpage_da_map_blocks()
-+ *
-+ * The problem is that write_cache_pages(), and then redirty all of
-+ * the pages calling redirty_page_for_writeback() but that
-+ * would be ugly in the extreme. So instead we would need to
-+ * replicate parts of the code in teh above functions,
-+ * simplifying them because we wouldn't actually intend to
-+ * write out the pages, but rather only collect contiguous
-+ * logical block extents, call the multi-block allocator, and
-+ * then update the buffer heads with the block allocations.
-+ *
-+ * For now, though we'll cheat by calling filemap_flush(),
-+ * which will map the blocks, and start the I/O, but not
-+ * actually wait for the I/O to complte.
-+ */
-+ return filemap_flush(inode->i_mapping);
-+}
-
- /*
- * bmap() is special. It gets used by applications such as lilo and by
-@@ -3695,6 +3731,9 @@
- if (!ext4_can_truncate(inode))
- return;
-
-+ if (inode->i_size == 0)
-+ ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE;
-+
- if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
- ext4_ext_truncate(inode);
- return;
-diff -ruaN linux-2.6.28.orig/fs/ext4/ioctl.c linux-2.6.28/fs/ext4/ioctl.c
---- linux-2.6.28.orig/fs/ext4/ioctl.c 2008-12-24 23:26:37.000000000 +0000
-+++ linux-2.6.28/fs/ext4/ioctl.c 2009-08-17 04:38:43.000000000 +0000
-@@ -263,6 +263,20 @@
- return err;
- }
-
-+ case EXT4_IOC_ALLOC_DA_BLKS:
-+ {
-+ int err;
-+ if (!is_owner_or_cap(inode))
-+ return -EACCES;
-+
-+ err = mnt_want_write(filp->f_path.mnt);
-+ if (err)
-+ return err;
-+ err = ext4_alloc_da_blocks(inode);
-+ mnt_drop_write(filp->f_path.mnt);
-+ return err;
-+ }
-+
- default:
- return -ENOTTY;
- }
-diff -ruaN linux-2.6.28.orig/fs/ext4/namei.c linux-2.6.28/fs/ext4/namei.c
---- linux-2.6.28.orig/fs/ext4/namei.c 2008-12-24 23:26:37.000000000 +0000
-+++ linux-2.6.28/fs/ext4/namei.c 2009-08-17 04:11:01.000000000 +0000
-@@ -2283,7 +2283,7 @@
- struct inode *old_inode, *new_inode;
- struct buffer_head *old_bh, *new_bh, *dir_bh;
- struct ext4_dir_entry_2 *old_de, *new_de;
-- int retval;
-+ int retval, force_da_alloc = 0;
-
- old_bh = new_bh = dir_bh = NULL;
-
-@@ -2421,6 +2421,7 @@
- ext4_mark_inode_dirty(handle, new_inode);
- if (!new_inode->i_nlink)
- ext4_orphan_add(handle, new_inode);
-+ force_da_alloc = 1;
- }
- retval = 0;
-
-@@ -2429,6 +2430,8 @@
- brelse(old_bh);
- brelse(new_bh);
- ext4_journal_stop(handle);
-+ if (retval == 0 && force_da_alloc)
-+ ext4_alloc_da_blocks(old_inode);
- return retval;
- }
-