| commit | 3b5da96e4585a2788da6a07619bda3518d76eb30 | |
| author | Andreas Gruenbacher <agruenba@redhat.com> | |
| Mon, 5 Mar 2018 13:18:25 +0000 (5 06:18 -0700) | ||
| committer | Bob Peterson <rpeterso@redhat.com> | |
| Wed, 7 Mar 2018 18:40:38 +0000 (7 11:40 -0700) | ||
| tree | 16d641a9b40682f8a027f6175bc9efe570a9687d | treesnapshot (tar.gz zip) |
| parent | 86f84779d8e92a690b2f281175ea06b884cb6fa4 | commitdiff |
gfs2: Fixes to "Implement iomap for block_map" (2)
It turns out that commit 3229c18c0d6b2 'Fixes to "Implement iomap for
block_map"' introduced another bug in gfs2_iomap_begin that can cause
gfs2_block_map to set bh->b_size of an actual buffer to 0. This can
lead to arbitrary incorrect behavior including crashes or disk
corruption. Revert the incorrect part of that commit.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
It turns out that commit 3229c18c0d6b2 'Fixes to "Implement iomap for
block_map"' introduced another bug in gfs2_iomap_begin that can cause
gfs2_block_map to set bh->b_size of an actual buffer to 0. This can
lead to arbitrary incorrect behavior including crashes or disk
corruption. Revert the incorrect part of that commit.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
| fs/gfs2/bmap.c | diffblobblamehistory |