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DLPX-44812 integrate EP-220 large memory scalability

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This commit is contained in:
David Quigley
2016-07-22 11:52:49 -04:00
committed by Brian Behlendorf
parent 616fa7c02b
commit a6255b7fce
49 changed files with 2625 additions and 798 deletions
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module/zfs/vdev_file.c
+14 -3
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@@ -31,6 +31,7 @@
#include <sys/zio.h>
#include <sys/fs/zfs.h>
#include <sys/fm/fs/zfs.h>
#include <sys/abd.h>
/*
* Virtual device vector for files.
@@ -150,11 +151,21 @@ vdev_file_io_strategy(void *arg)
vdev_t *vd = zio->io_vd;
vdev_file_t *vf = vd->vdev_tsd;
ssize_t resid;
void *buf;
if (zio->io_type == ZIO_TYPE_READ)
buf = abd_borrow_buf(zio->io_abd, zio->io_size);
else
buf = abd_borrow_buf_copy(zio->io_abd, zio->io_size);
zio->io_error = vn_rdwr(zio->io_type == ZIO_TYPE_READ ?
UIO_READ : UIO_WRITE, vf->vf_vnode, zio->io_data,
zio->io_size, zio->io_offset, UIO_SYSSPACE,
0, RLIM64_INFINITY, kcred, &resid);
UIO_READ : UIO_WRITE, vf->vf_vnode, buf, zio->io_size,
zio->io_offset, UIO_SYSSPACE, 0, RLIM64_INFINITY, kcred, &resid);
if (zio->io_type == ZIO_TYPE_READ)
abd_return_buf_copy(zio->io_abd, buf, zio->io_size);
else
abd_return_buf(zio->io_abd, buf, zio->io_size);
if (resid != 0 && zio->io_error == 0)
zio->io_error = SET_ERROR(ENOSPC);