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authorAmir Goldstein2011-03-20 20:08:48 -0400
committerTheodore Ts'o2011-03-20 20:08:48 -0400
commitc2cc7028e41c76e44b6e247c4b495c7523b23c87 (patch)
tree747b3152285a95ec9727463cc3ae8cee2509521c /fs/ext4
parent688f869ce3bdc892daa993534dc6df18c95df931 (diff)
jbd2: add the b_cow_tid field to journal_head struct
The b_cow_tid field will be used by the ext4 snapshots code to store the transaction id when the buffer was last cowed. Merging this patch to mainline will allow users to test ext4 snapshots as a standalone module, without the need to patch and install a development kernel. On 64bit machines this field uses fills in a padding "hole" and does not increase the size of the struct. On a 32bit machine this patch increases the size of the struct from 60 to 64 bytes. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
0 files changed, 0 insertions, 0 deletions