/* postprocessing steps for read bios */
enum bio_post_read_step {
STEP_DECRYPT,
- STEP_DECOMPRESS,
+ STEP_DECOMPRESS_NOWQ, /* handle normal cluster data inplace */
+ STEP_DECOMPRESS, /* handle compressed cluster data in workqueue */
STEP_VERITY,
};
if (f2fs_encrypted_file(inode))
post_read_steps |= 1 << STEP_DECRYPT;
if (f2fs_compressed_file(inode))
- post_read_steps |= 1 << STEP_DECOMPRESS;
+ post_read_steps |= 1 << STEP_DECOMPRESS_NOWQ;
if (f2fs_need_verity(inode, first_idx))
post_read_steps |= 1 << STEP_VERITY;
for (i = 0; i < dic->nr_cpages; i++) {
struct page *page = dic->cpages[i];
block_t blkaddr;
+ struct bio_post_read_ctx *ctx;
blkaddr = data_blkaddr(dn.inode, dn.node_page,
dn.ofs_in_node + i + 1);
if (bio_add_page(bio, page, blocksize, 0) < blocksize)
goto submit_and_realloc;
+ /* tag STEP_DECOMPRESS to handle IO in wq */
+ ctx = bio->bi_private;
+ if (!(ctx->enabled_steps & (1 << STEP_DECOMPRESS)))
+ ctx->enabled_steps |= 1 << STEP_DECOMPRESS;
+
inc_page_count(sbi, F2FS_RD_DATA);
f2fs_update_iostat(sbi, FS_DATA_READ_IO, F2FS_BLKSIZE);
ClearPageError(page);