[Cluster-devel] Fix typo in gfs_page_mkwrite()
Benjamin Marzinski
bmarzins at redhat.com
Tue Jan 6 16:47:50 UTC 2009
There is a typo in gfs2_page_mkwrite()
gfs2_write_alloc_required() expects pos to be the offset in bytes. However,
instead of the page index being shifted by by PAGE_CACHE_SHIFT, it was shifted
by (PAGE_CACHE_SIZE - inode->i_blkbits). This patch simply shifts the page
index by the proper amount.
Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
---
fs/gfs2/ops_file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: kernel-315191/fs/gfs2/ops_file.c
===================================================================
--- kernel-315191.orig/fs/gfs2/ops_file.c
+++ kernel-315191/fs/gfs2/ops_file.c
@@ -342,7 +342,7 @@ static int gfs2_page_mkwrite(struct vm_a
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
unsigned long last_index;
- u64 pos = page->index << (PAGE_CACHE_SIZE - inode->i_blkbits);
+ u64 pos = page->index << PAGE_CACHE_SHIFT;
unsigned int data_blocks, ind_blocks, rblocks;
int alloc_required = 0;
struct gfs2_holder gh;
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