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config: remove HAVE_VFS_RW_ITERATE

Browse Source 
Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16479
This commit is contained in:
Rob Norris
2024-08-04 10:28:38 +10:00
committed by Brian Behlendorf
parent f3d30f1ce0
commit 72be1f4062
4 changed files with 31 additions and 174 deletions
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module/os/linux/zfs/zpl_file.c
-116
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@@ -240,8 +240,6 @@ zpl_file_accessed(struct file *filp)
}
}
#if defined(HAVE_VFS_RW_ITERATE)
/*
* When HAVE_VFS_IOV_ITER is defined the iov_iter structure supports
* iovecs, kvevs, bvecs and pipes, plus all the required interfaces to
@@ -342,91 +340,6 @@ zpl_iter_write(struct kiocb *kiocb, struct iov_iter *from)
return (wrote);
}
#else /* !HAVE_VFS_RW_ITERATE */
static ssize_t
zpl_aio_read(struct kiocb *kiocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
cred_t *cr = CRED();
fstrans_cookie_t cookie;
struct file *filp = kiocb->ki_filp;
size_t count;
ssize_t ret;
ret = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
if (ret)
return (ret);
zfs_uio_t uio;
zfs_uio_iovec_init(&uio, iov, nr_segs, kiocb->ki_pos, UIO_USERSPACE,
count, 0);
crhold(cr);
cookie = spl_fstrans_mark();
ret = -zfs_read(ITOZ(filp->f_mapping->host), &uio,
flip->f_flags | zfs_io_flags(kiocb), cr);
spl_fstrans_unmark(cookie);
crfree(cr);
if (ret < 0)
return (ret);
ssize_t read = count - uio.uio_resid;
kiocb->ki_pos += read;
zpl_file_accessed(filp);
return (read);
}
static ssize_t
zpl_aio_write(struct kiocb *kiocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
cred_t *cr = CRED();
fstrans_cookie_t cookie;
struct file *filp = kiocb->ki_filp;
struct inode *ip = filp->f_mapping->host;
size_t count;
ssize_t ret;
ret = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ);
if (ret)
return (ret);
ret = generic_write_checks(filp, &pos, &count, S_ISBLK(ip->i_mode));
if (ret)
return (ret);
kiocb->ki_pos = pos;
zfs_uio_t uio;
zfs_uio_iovec_init(&uio, iov, nr_segs, kiocb->ki_pos, UIO_USERSPACE,
count, 0);
crhold(cr);
cookie = spl_fstrans_mark();
ret = -zfs_write(ITOZ(ip), &uio,
filp->f_flags | zfs_io_flags(kiocb), cr);
spl_fstrans_unmark(cookie);
crfree(cr);
if (ret < 0)
return (ret);
ssize_t wrote = count - uio.uio_resid;
kiocb->ki_pos += wrote;
return (wrote);
}
#endif /* HAVE_VFS_RW_ITERATE */
static ssize_t
zpl_direct_IO_impl(void)
{
@@ -440,7 +353,6 @@ zpl_direct_IO_impl(void)
return (0);
}
#if defined(HAVE_VFS_RW_ITERATE)
#if defined(HAVE_VFS_DIRECT_IO_ITER)
static ssize_t
zpl_direct_IO(struct kiocb *kiocb, struct iov_iter *iter)
@@ -463,27 +375,6 @@ zpl_direct_IO(int rw, struct kiocb *kiocb, struct iov_iter *iter, loff_t pos)
#error "Unknown Direct I/O interface"
#endif
#else /* HAVE_VFS_RW_ITERATE */
#if defined(HAVE_VFS_DIRECT_IO_IOVEC)
static ssize_t
zpl_direct_IO(int rw, struct kiocb *kiocb, const struct iovec *iov,
loff_t pos, unsigned long nr_segs)
{
return (zpl_direct_IO_impl());
}
#elif defined(HAVE_VFS_DIRECT_IO_ITER_RW_OFFSET)
static ssize_t
zpl_direct_IO(int rw, struct kiocb *kiocb, struct iov_iter *iter, loff_t pos)
{
return (zpl_direct_IO_impl());
}
#else
#error "Unknown Direct I/O interface"
#endif
#endif /* HAVE_VFS_RW_ITERATE */
static loff_t
zpl_llseek(struct file *filp, loff_t offset, int whence)
{
@@ -1250,7 +1141,6 @@ const struct file_operations zpl_file_operations = {
.open = zpl_open,
.release = zpl_release,
.llseek = zpl_llseek,
#ifdef HAVE_VFS_RW_ITERATE
#ifdef HAVE_NEW_SYNC_READ
.read = new_sync_read,
.write = new_sync_write,
@@ -1264,12 +1154,6 @@ const struct file_operations zpl_file_operations = {
.splice_read = generic_file_splice_read,
#endif
.splice_write = iter_file_splice_write,
#endif
#else
.read = do_sync_read,
.write = do_sync_write,
.aio_read = zpl_aio_read,
.aio_write = zpl_aio_write,
#endif
.mmap = zpl_mmap,
.fsync = zpl_fsync,