Dear Aaron Pace,
In message 4C4DE8DC.4020500@alcatel-lucent.com you wrote:
Fix optimization bug for doubly-indirect block pointers
Doubly-indirect block numbers are compared against the first-level indirect block when checking for a cached copy. This is causing the doubly-indirect block to be re-read each time it is accessed. Repairing this reduces load time for a 70M file from 72 seconds to 38 seconds.
Signed-off-by: Aaron Pace Aaron.Pace@alcatel-lucent.com
fs/ext2/ext2fs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ext2/ext2fs.c b/fs/ext2/ext2fs.c index 4b391d6..a88cf87 100644 --- a/fs/ext2/ext2fs.c +++ b/fs/ext2/ext2fs.c @@ -364,7 +364,7 @@ static int ext2fs_read_block (ext2fs_node_t node, int fileblock) { indir2_size = blksz; } if ((__le32_to_cpu (indir1_block[rblock / perblock]) <<
log2_blksz) != indir1_blkno) {
log2_blksz) != indir2_blkno) { status = ext2fs_devread(__le32_to_cpu(indir1_block[rblock / perblock]) << log2_blksz,
This patch is line-wrapped, please make sure to fix yourmailer.
This has already been applied, so no need to resubmit.
Best regards,
Wolfgang Denk