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fs: remove kiocb.ki_hint
This field is entirely unused now except for a tracepoint in f2fs, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20220308060529.736277-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
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parent
c75e707fe1
commit
41d36a9f3e
1
fs/aio.c
1
fs/aio.c
@ -1478,7 +1478,6 @@ static int aio_prep_rw(struct kiocb *req, const struct iocb *iocb)
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req->ki_flags = iocb_flags(req->ki_filp);
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if (iocb->aio_flags & IOCB_FLAG_RESFD)
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req->ki_flags |= IOCB_EVENTFD;
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req->ki_hint = ki_hint_validate(file_write_hint(req->ki_filp));
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if (iocb->aio_flags & IOCB_FLAG_IOPRIO) {
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/*
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* If the IOCB_FLAG_IOPRIO flag of aio_flags is set, then
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@ -138,7 +138,6 @@ static int cachefiles_read(struct netfs_cache_resources *cres,
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ki->iocb.ki_filp = file;
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ki->iocb.ki_pos = start_pos + skipped;
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ki->iocb.ki_flags = IOCB_DIRECT;
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ki->iocb.ki_hint = ki_hint_validate(file_write_hint(file));
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ki->iocb.ki_ioprio = get_current_ioprio();
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ki->skipped = skipped;
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ki->object = object;
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@ -313,7 +312,6 @@ static int cachefiles_write(struct netfs_cache_resources *cres,
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ki->iocb.ki_filp = file;
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ki->iocb.ki_pos = start_pos;
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ki->iocb.ki_flags = IOCB_DIRECT | IOCB_WRITE;
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ki->iocb.ki_hint = ki_hint_validate(file_write_hint(file));
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ki->iocb.ki_ioprio = get_current_ioprio();
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ki->object = object;
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ki->inval_counter = cres->inval_counter;
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@ -4479,10 +4479,8 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
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struct f2fs_inode_info *fi = F2FS_I(inode);
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struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
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const bool do_opu = f2fs_lfs_mode(sbi);
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const int whint_mode = F2FS_OPTION(sbi).whint_mode;
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const loff_t pos = iocb->ki_pos;
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const ssize_t count = iov_iter_count(from);
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const enum rw_hint hint = iocb->ki_hint;
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unsigned int dio_flags;
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struct iomap_dio *dio;
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ssize_t ret;
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@ -4515,8 +4513,6 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
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if (do_opu)
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down_read(&fi->i_gc_rwsem[READ]);
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}
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if (whint_mode == WHINT_MODE_OFF)
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iocb->ki_hint = WRITE_LIFE_NOT_SET;
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/*
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* We have to use __iomap_dio_rw() and iomap_dio_complete() instead of
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@ -4539,8 +4535,6 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
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ret = iomap_dio_complete(dio);
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}
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if (whint_mode == WHINT_MODE_OFF)
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iocb->ki_hint = hint;
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if (do_opu)
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up_read(&fi->i_gc_rwsem[READ]);
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up_read(&fi->i_gc_rwsem[WRITE]);
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@ -3747,7 +3747,6 @@ static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
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{
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if (unlikely(!(req->file->f_mode & FMODE_WRITE)))
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return -EBADF;
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req->rw.kiocb.ki_hint = ki_hint_validate(file_write_hint(req->file));
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return io_prep_rw(req, sqe);
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}
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@ -327,7 +327,6 @@ struct kiocb {
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void (*ki_complete)(struct kiocb *iocb, long ret);
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void *private;
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int ki_flags;
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u16 ki_hint;
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u16 ki_ioprio; /* See linux/ioprio.h */
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struct wait_page_queue *ki_waitq; /* for async buffered IO */
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randomized_struct_fields_end
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@ -2225,21 +2224,11 @@ static inline enum rw_hint file_write_hint(struct file *file)
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static inline int iocb_flags(struct file *file);
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static inline u16 ki_hint_validate(enum rw_hint hint)
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{
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typeof(((struct kiocb *)0)->ki_hint) max_hint = -1;
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if (hint <= max_hint)
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return hint;
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return 0;
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}
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static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
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{
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*kiocb = (struct kiocb) {
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.ki_filp = filp,
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.ki_flags = iocb_flags(filp),
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.ki_hint = ki_hint_validate(file_write_hint(filp)),
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.ki_ioprio = get_current_ioprio(),
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};
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}
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@ -2250,7 +2239,6 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
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*kiocb = (struct kiocb) {
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.ki_filp = filp,
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.ki_flags = kiocb_src->ki_flags,
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.ki_hint = kiocb_src->ki_hint,
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.ki_ioprio = kiocb_src->ki_ioprio,
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.ki_pos = kiocb_src->ki_pos,
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};
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@ -956,12 +956,11 @@ TRACE_EVENT(f2fs_direct_IO_enter,
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__entry->rw = rw;
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),
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TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu ki_flags = %x ki_hint = %x ki_ioprio = %x rw = %d",
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TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu ki_flags = %x ki_ioprio = %x rw = %d",
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show_dev_ino(__entry),
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__entry->iocb->ki_pos,
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__entry->len,
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__entry->iocb->ki_flags,
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__entry->iocb->ki_hint,
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__entry->iocb->ki_ioprio,
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__entry->rw)
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);
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