diff options
Diffstat (limited to 'abs/core/kernel26/ext4.patch')
| -rw-r--r-- | abs/core/kernel26/ext4.patch | 152 |
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; - } - |