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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-04-02 20:00:02 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:37:58 -0400 |
| commit | 2ba5bbed0cd7429dbd567fa885ae3bc7a76de3d4 (patch) | |
| tree | 5ab52803f626696845dbface804d6b1a7de3f79f /mm/shmem.c | |
| parent | pipe: switch to ->read_iter() (diff) | |
| download | linux-dev-2ba5bbed0cd7429dbd567fa885ae3bc7a76de3d4.tar.xz linux-dev-2ba5bbed0cd7429dbd567fa885ae3bc7a76de3d4.zip | |
shmem: switch to ->read_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/shmem.c')
| -rw-r--r-- | mm/shmem.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index e0b76696c3f9..edc6c7e817e9 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1402,8 +1402,7 @@ shmem_write_end(struct file *file, struct address_space *mapping, return copied; } -static ssize_t shmem_file_aio_read(struct kiocb *iocb, - const struct iovec *iov, unsigned long nr_segs, loff_t pos) +static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to) { struct file *file = iocb->ki_filp; struct inode *inode = file_inode(file); @@ -1413,11 +1412,7 @@ static ssize_t shmem_file_aio_read(struct kiocb *iocb, enum sgp_type sgp = SGP_READ; int error = 0; ssize_t retval = 0; - size_t count = iov_length(iov, nr_segs); loff_t *ppos = &iocb->ki_pos; - struct iov_iter iter; - - iov_iter_init(&iter, READ, iov, nr_segs, count); /* * Might this read be for a stacking filesystem? Then when reading @@ -1493,14 +1488,14 @@ static ssize_t shmem_file_aio_read(struct kiocb *iocb, * Ok, we have the page, and it's up-to-date, so * now we can copy it to user space... */ - ret = copy_page_to_iter(page, offset, nr, &iter); + ret = copy_page_to_iter(page, offset, nr, to); retval += ret; offset += ret; index += offset >> PAGE_CACHE_SHIFT; offset &= ~PAGE_CACHE_MASK; page_cache_release(page); - if (!iov_iter_count(&iter)) + if (!iov_iter_count(to)) break; if (ret < nr) { error = -EFAULT; @@ -2622,9 +2617,9 @@ static const struct file_operations shmem_file_operations = { .mmap = shmem_mmap, #ifdef CONFIG_TMPFS .llseek = shmem_file_llseek, - .read = do_sync_read, + .read = new_sync_read, .write = do_sync_write, - .aio_read = shmem_file_aio_read, + .read_iter = shmem_file_read_iter, .aio_write = generic_file_aio_write, .fsync = noop_fsync, .splice_read = shmem_file_splice_read, |