diff options
Diffstat (limited to 'fs/ocfs2/aops.c')
| -rw-r--r-- | fs/ocfs2/aops.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index fdad075fed61..9db9d64ca475 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -44,6 +44,7 @@ #include "suballoc.h" #include "super.h" #include "symlink.h" +#include "refcounttree.h" #include "buffer_head_io.h" @@ -590,6 +591,8 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, goto bail; } + /* We should already CoW the refcounted extent. */ + BUG_ON(ext_flags & OCFS2_EXT_REFCOUNTED); /* * get_more_blocks() expects us to describe a hole by clearing * the mapped bit on bh_result(). @@ -1449,6 +1452,9 @@ static int ocfs2_populate_write_desc(struct inode *inode, goto out; } + /* We should already CoW the refcountd extent. */ + BUG_ON(ext_flags & OCFS2_EXT_REFCOUNTED); + /* * Assume worst case - that we're writing in * the middle of the extent. @@ -1700,6 +1706,19 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, goto out; } + ret = ocfs2_check_range_for_refcount(inode, pos, len); + if (ret < 0) { + mlog_errno(ret); + goto out; + } else if (ret == 1) { + ret = ocfs2_refcount_cow(inode, di_bh, + wc->w_cpos, wc->w_clen); + if (ret) { + mlog_errno(ret); + goto out; + } + } + ret = ocfs2_populate_write_desc(inode, wc, &clusters_to_alloc, &extents_to_split); if (ret) { |