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fs/nilfs2: Use the enum req_op and blk_opf_t types
Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the 'mode' and 'mode_flags' arguments of nilfs_btnode_submit_block into a single argument 'opf'. Reviewed-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20220714180729.1065367-59-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
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parent
5d12ce77e1
commit
ed4512590b
6 changed files with 23 additions and 23 deletions
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@ -70,7 +70,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
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}
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int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
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sector_t pblocknr, int mode, int mode_flags,
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sector_t pblocknr, blk_opf_t opf,
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struct buffer_head **pbh, sector_t *submit_ptr)
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{
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struct buffer_head *bh;
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@ -103,13 +103,13 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
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}
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}
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if (mode_flags & REQ_RAHEAD) {
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if (opf & REQ_RAHEAD) {
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if (pblocknr != *submit_ptr + 1 || !trylock_buffer(bh)) {
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err = -EBUSY; /* internal code */
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brelse(bh);
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goto out_locked;
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}
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} else { /* mode == READ */
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} else { /* opf == REQ_OP_READ */
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lock_buffer(bh);
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}
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if (buffer_uptodate(bh)) {
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@ -122,7 +122,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
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bh->b_blocknr = pblocknr; /* set block address for read */
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bh->b_end_io = end_buffer_read_sync;
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get_bh(bh);
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submit_bh(mode | mode_flags, bh);
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submit_bh(opf, bh);
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bh->b_blocknr = blocknr; /* set back to the given block address */
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*submit_ptr = pblocknr;
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err = 0;
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@ -34,8 +34,8 @@ void nilfs_init_btnc_inode(struct inode *btnc_inode);
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void nilfs_btnode_cache_clear(struct address_space *);
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struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
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__u64 blocknr);
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int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int,
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int, struct buffer_head **, sector_t *);
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int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t,
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blk_opf_t, struct buffer_head **, sector_t *);
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void nilfs_btnode_delete(struct buffer_head *);
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int nilfs_btnode_prepare_change_key(struct address_space *,
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struct nilfs_btnode_chkey_ctxt *);
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@ -477,7 +477,7 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
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sector_t submit_ptr = 0;
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int ret;
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ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, 0, &bh,
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ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, &bh,
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&submit_ptr);
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if (ret) {
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if (ret != -EEXIST)
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@ -495,7 +495,7 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
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ptr2 = nilfs_btree_node_get_ptr(ra->node, i, ra->ncmax);
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ret = nilfs_btnode_submit_block(btnc, ptr2, 0,
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REQ_OP_READ, REQ_RAHEAD,
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REQ_OP_READ | REQ_RAHEAD,
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&ra_bh, &submit_ptr);
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if (likely(!ret || ret == -EEXIST))
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brelse(ra_bh);
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@ -129,9 +129,8 @@ int nilfs_gccache_submit_read_node(struct inode *inode, sector_t pbn,
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struct inode *btnc_inode = NILFS_I(inode)->i_assoc_inode;
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int ret;
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ret = nilfs_btnode_submit_block(btnc_inode->i_mapping,
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vbn ? : pbn, pbn, REQ_OP_READ, 0,
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out_bh, &pbn);
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ret = nilfs_btnode_submit_block(btnc_inode->i_mapping, vbn ? : pbn, pbn,
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REQ_OP_READ, out_bh, &pbn);
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if (ret == -EEXIST) /* internal code (cache hit) */
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ret = 0;
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return ret;
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@ -111,8 +111,8 @@ static int nilfs_mdt_create_block(struct inode *inode, unsigned long block,
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}
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static int
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nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
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int mode, int mode_flags, struct buffer_head **out_bh)
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nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, blk_opf_t opf,
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struct buffer_head **out_bh)
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{
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struct buffer_head *bh;
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__u64 blknum = 0;
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@ -126,12 +126,12 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
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if (buffer_uptodate(bh))
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goto out;
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if (mode_flags & REQ_RAHEAD) {
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if (opf & REQ_RAHEAD) {
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if (!trylock_buffer(bh)) {
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ret = -EBUSY;
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goto failed_bh;
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}
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} else /* mode == READ */
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} else /* opf == REQ_OP_READ */
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lock_buffer(bh);
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if (buffer_uptodate(bh)) {
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@ -148,10 +148,11 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
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bh->b_end_io = end_buffer_read_sync;
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get_bh(bh);
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submit_bh(mode | mode_flags, bh);
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submit_bh(opf, bh);
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ret = 0;
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trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode);
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trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff,
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opf & REQ_OP_MASK);
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out:
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get_bh(bh);
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*out_bh = bh;
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@ -172,7 +173,7 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,
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int i, nr_ra_blocks = NILFS_MDT_MAX_RA_BLOCKS;
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int err;
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err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, 0, &first_bh);
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err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, &first_bh);
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if (err == -EEXIST) /* internal code */
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goto out;
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@ -182,8 +183,8 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,
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if (readahead) {
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blkoff = block + 1;
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for (i = 0; i < nr_ra_blocks; i++, blkoff++) {
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err = nilfs_mdt_submit_block(inode, blkoff, REQ_OP_READ,
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REQ_RAHEAD, &bh);
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err = nilfs_mdt_submit_block(inode, blkoff,
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REQ_OP_READ | REQ_RAHEAD, &bh);
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if (likely(!err || err == -EEXIST))
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brelse(bh);
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else if (err != -EBUSY)
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@ -192,7 +192,7 @@ TRACE_EVENT(nilfs2_mdt_submit_block,
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TP_PROTO(struct inode *inode,
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unsigned long ino,
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unsigned long blkoff,
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int mode),
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enum req_op mode),
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TP_ARGS(inode, ino, blkoff, mode),
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@ -200,7 +200,7 @@ TRACE_EVENT(nilfs2_mdt_submit_block,
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__field(struct inode *, inode)
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__field(unsigned long, ino)
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__field(unsigned long, blkoff)
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__field(int, mode)
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__field(enum req_op, mode)
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),
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TP_fast_assign(
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