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authorMark Fasheh <mark.fasheh@oracle.com>2007-09-07 14:46:51 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2007-10-12 11:54:40 -0700
commit1afc32b952335f665327a1a9001ba1b44bb76fd9 (patch)
treec914afd0ef5d32b426c3cf65820de7599e570656 /fs/ocfs2/journal.h
parent6798d35a31c413bbb3f83bbaa844bd2598168ccc (diff)
downloadop-kernel-dev-1afc32b952335f665327a1a9001ba1b44bb76fd9.zip
op-kernel-dev-1afc32b952335f665327a1a9001ba1b44bb76fd9.tar.gz
ocfs2: Write support for inline data
This fixes up write, truncate, mmap, and RESVSP/UNRESVP to understand inline inode data. For the most part, the changes to the core write code can be relied on to do the heavy lifting. Any code calling ocfs2_write_begin (including shared writeable mmap) can count on it doing the right thing with respect to growing inline data to an extent tree. Size reducing truncates, including UNRESVP can simply zero that portion of the inode block being removed. Size increasing truncatesm, including RESVP have to be a little bit smarter and grow the inode to an extent tree if necessary. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Reviewed-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/journal.h')
-rw-r--r--fs/ocfs2/journal.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index ce60aab..4b32e09 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -282,6 +282,9 @@ int ocfs2_journal_dirty_data(handle_t *handle,
* prev. group desc. if we relink. */
#define OCFS2_SUBALLOC_ALLOC (3)
+#define OCFS2_INLINE_TO_EXTENTS_CREDITS (OCFS2_SUBALLOC_ALLOC \
+ + OCFS2_INODE_UPDATE_CREDITS)
+
/* dinode + group descriptor update. We don't relink on free yet. */
#define OCFS2_SUBALLOC_FREE (2)
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