Function f2fs_invalidate_blocks() can process consecutive
blocks at a time, so f2fs_truncate_data_blocks_range() is
optimized to use the new functionality of
f2fs_invalidate_blocks().
Add two variables @blkstart and @blklen, @blkstart records
the first address of the consecutive blocks, and @blkstart
records the number of consecutive blocks.
Signed-off-by: Yi Sun <yi....@unisoc.com>
---
fs/f2fs/file.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c43d64898d8b..00fcac45f1bb 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -621,8 +621,11 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data
*dn, int count)
int cluster_index = 0, valid_blocks = 0;
int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
+ block_t blkstart;
+ int blklen = 0;
addr = get_dnode_addr(dn->inode, dn->node_page) + ofs;
+ blkstart = le32_to_cpu(*addr);
/* Assumption: truncation starts with cluster */
for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
@@ -638,26 +641,44 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data
*dn, int count)
}
if (blkaddr == NULL_ADDR)
- continue;
+ goto next;
f2fs_set_data_blkaddr(dn, NULL_ADDR);
if (__is_valid_data_blkaddr(blkaddr)) {
if (time_to_inject(sbi, FAULT_BLKADDR_CONSISTENCE))
- continue;
+ goto next;
if (!f2fs_is_valid_blkaddr_raw(sbi, blkaddr,
DATA_GENERIC_ENHANCE))
- continue;
+ goto next;
if (compressed_cluster)
valid_blocks++;
}
- f2fs_invalidate_blocks(sbi, blkaddr, 1);
+ if (blkstart + blklen == blkaddr) {
+ blklen++;
+ } else {
+ f2fs_invalidate_blocks(sbi, blkstart, blklen);
+ blkstart = blkaddr;
+ blklen = 1;
+ }
if (!released || blkaddr != COMPRESS_ADDR)
nr_free++;
+
+ continue;
+
+next:
+ if (blklen)
+ f2fs_invalidate_blocks(sbi, blkstart, blklen);
+
+ blkstart = le32_to_cpu(*(addr + 1));
+ blklen = 0;
}
+ if (blklen)
+ f2fs_invalidate_blocks(sbi, blkstart, blklen);
+
if (compressed_cluster)
f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
--
2.25.1
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