Searched hist:"9 c1ee184a30394e54165fa4c15923cabd952c106" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/fs/ext4/ |
| H A D | extents.c | diff 9c1ee184a30394e54165fa4c15923cabd952c106 Wed May 13 17:36:58 CDT 2009 Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> ext4: Fix sub-block zeroing for writes into preallocated extents
We need to mark the buffer_head mapping preallocated space as new
during write_begin. Otherwise we don't zero out the page cache content
properly for a partial write. This will cause file corruption with
preallocation.
Now that we mark the buffer_head new we also need to have a valid
buffer_head blocknr so that unmap_underlying_metadata() unmaps the
correct block.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
|
| H A D | inode.c | diff 9c1ee184a30394e54165fa4c15923cabd952c106 Wed May 13 17:36:58 CDT 2009 Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> ext4: Fix sub-block zeroing for writes into preallocated extents
We need to mark the buffer_head mapping preallocated space as new
during write_begin. Otherwise we don't zero out the page cache content
properly for a partial write. This will cause file corruption with
preallocation.
Now that we mark the buffer_head new we also need to have a valid
buffer_head blocknr so that unmap_underlying_metadata() unmaps the
correct block.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
|