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Hi, I have the following data: > data[1:20,c(1,2,20)] idr schyear year 1 8 0 1 9 1 1 10 NA 2 4 NA 2 5 -1 2 6 0 2 7 1 2 8 2 2 9 3 2 10 4 2 11 NA 2 12 6 3 4 NA 3 5 -2 3 6 -1 3 7 0 3 8 1 3 9 2 3 10 3 3 11 NA What I want to do is

The <linux/bug.h> was removed from radix-tree.h by the following commit: f5bba9d11a256ad2a1c2f8e7fc6aabe6416b7890. Since that commit, tools/testing/radix-tree/ couldn't pass compilation due to: tools/testing/radix-tree/idr.c:17: undefined reference to WARN_ON_ONCE. This patch adds the bug.h header to idr.h to solve the issue. Signed-off-by: Wei Wang <wei.w.wang at intel.com> Cc:

On Wed, 28 Aug 2013 13:44:54 -0700 Kent Overstreet <kmo at daterainc.com> wrote: > > > > What guarantees that this wait will terminate? > > > > > > It seems fairly clear to me from the break statement a couple lines up; > > > if we were passed __GFP_WAIT we terminate iff we succesfully allocated a > > > tag. If we weren't passed

On Wed, 28 Aug 2013 13:44:54 -0700 Kent Overstreet <kmo at daterainc.com> wrote: > > > > What guarantees that this wait will terminate? > > > > > > It seems fairly clear to me from the break statement a couple lines up; > > > if we were passed __GFP_WAIT we terminate iff we succesfully allocated a > > > tag. If we weren't passed

On Wed, Nov 29, 2017 at 09:55:17PM +0800, Wei Wang wrote: > The <linux/bug.h> was removed from radix-tree.h by the following commit: > f5bba9d11a256ad2a1c2f8e7fc6aabe6416b7890. > > Since that commit, tools/testing/radix-tree/ couldn't pass compilation > due to: tools/testing/radix-tree/idr.c:17: undefined reference to > WARN_ON_ONCE. This patch adds the bug.h header to

On Wed, Nov 29, 2017 at 09:55:17PM +0800, Wei Wang wrote: > The <linux/bug.h> was removed from radix-tree.h by the following commit: > f5bba9d11a256ad2a1c2f8e7fc6aabe6416b7890. > > Since that commit, tools/testing/radix-tree/ couldn't pass compilation > due to: tools/testing/radix-tree/idr.c:17: undefined reference to > WARN_ON_ONCE. This patch adds the bug.h header to

Fixup patch, addressing Andrew's review feedback: Signed-off-by: Kent Overstreet <kmo at daterainc.com> --- include/linux/idr.h | 2 +- lib/idr.c | 38 +++++++++++++++++++++----------------- 2 files changed, 22 insertions(+), 18 deletions(-) diff --git a/include/linux/idr.h b/include/linux/idr.h index f0db12b..cdf39be 100644 --- a/include/linux/idr.h +++

On Wed, Aug 28, 2013 at 01:50:42PM -0700, Andrew Morton wrote: > On Wed, 28 Aug 2013 13:44:54 -0700 Kent Overstreet <kmo at daterainc.com> wrote: > > > > > > What guarantees that this wait will terminate? > > > > > > > > It seems fairly clear to me from the break statement a couple lines up; > > > > if we were passed __GFP_WAIT we

On Fri, 16 Aug 2013 23:09:06 +0000 "Nicholas A. Bellinger" <nab at linux-iscsi.org> wrote: > From: Kent Overstreet <kmo at daterainc.com> > > Percpu frontend for allocating ids. With percpu allocation (that works), > it's impossible to guarantee it will always be possible to allocate all > nr_tags - typically, some will be stuck on a remote percpu

On Fri, 16 Aug 2013 23:09:06 +0000 "Nicholas A. Bellinger" <nab at linux-iscsi.org> wrote: > From: Kent Overstreet <kmo at daterainc.com> > > Percpu frontend for allocating ids. With percpu allocation (that works), > it's impossible to guarantee it will always be possible to allocate all > nr_tags - typically, some will be stuck on a remote percpu

From: Kent Overstreet <kmo at daterainc.com> Percpu frontend for allocating ids. With percpu allocation (that works), it's impossible to guarantee it will always be possible to allocate all nr_tags - typically, some will be stuck on a remote percpu freelist where the current job can't get to them. We do guarantee that it will always be possible to allocate at least (nr_tags / 2)

From: Matthew Wilcox <mawilcox at microsoft.com> The eXtensible Bitmap is a sparse bitmap representation which is efficient for set bits which tend to cluster. It supports up to 'unsigned long' worth of bits, and this commit adds the bare bones -- xb_set_bit(), xb_clear_bit() and xb_test_bit(). Signed-off-by: Wei Wang <wei.w.wang at intel.com> Cc: Matthew Wilcox <mawilcox

From: Matthew Wilcox <mawilcox at microsoft.com> The eXtensible Bitmap is a sparse bitmap representation which is efficient for set bits which tend to cluster. It supports up to 'unsigned long' worth of bits, and this commit adds the bare bones -- xb_set_bit(), xb_clear_bit() and xb_test_bit(). Signed-off-by: Wei Wang <wei.w.wang at intel.com> Cc: Matthew Wilcox <mawilcox

On 12/22/2017 05:03 AM, Matthew Wilcox wrote: > OK, here's a rewrite of xbitmap. > > Compared to the version you sent: > - xb_find_set() is the rewrite I sent out yesterday. > - xb_find_clear() is a new implementation. I use the IDR_FREE tag to find > clear bits. This led to me finding a bug in radix_tree_for_each_tagged(). > - xb_zero() is also a new

On 12/22/2017 05:03 AM, Matthew Wilcox wrote: > OK, here's a rewrite of xbitmap. > > Compared to the version you sent: > - xb_find_set() is the rewrite I sent out yesterday. > - xb_find_clear() is a new implementation. I use the IDR_FREE tag to find > clear bits. This led to me finding a bug in radix_tree_for_each_tagged(). > - xb_zero() is also a new

On Fri, Jan 31, 2020 at 11:36:51AM +0800, Tiwei Bie wrote: > +static int vhost_vdpa_alloc_minor(struct vhost_vdpa *v) > +{ > + return idr_alloc(&vhost_vdpa.idr, v, 0, MINORMASK + 1, > + GFP_KERNEL); > +} Please don't use idr in new code, use xarray directly > +static int vhost_vdpa_probe(struct device *dev) > +{ > + struct vdpa_device *vdpa = dev_to_vdpa(dev);

On Fri, Jan 31, 2020 at 11:36:51AM +0800, Tiwei Bie wrote: > +static int vhost_vdpa_alloc_minor(struct vhost_vdpa *v) > +{ > + return idr_alloc(&vhost_vdpa.idr, v, 0, MINORMASK + 1, > + GFP_KERNEL); > +} Please don't use idr in new code, use xarray directly > +static int vhost_vdpa_probe(struct device *dev) > +{ > + struct vdpa_device *vdpa = dev_to_vdpa(dev);

Compile issue with tools/libfsimage/iso9660 char vs unsigned char signedness causes a warning when compiling iso9660 (xen-unstable). This patch changes the unsigned char * for char *. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> diff -r 8eff89a69521 tools/libfsimage/iso9660/fsys_iso9660.c --- a/tools/libfsimage/iso9660/fsys_iso9660.c Fri Mar 02 18:42:00 2007 -0500 +++

On Wed, Sep 16, 2015 at 07:29:17PM -0500, Suman Anna wrote: > The virtio core uses a static ida named virtio_index_ida for > assigning index numbers to virtio devices during registration. > The ida core may allocate some internal idr cache layers and > an ida bitmap upon any ida allocation, and all these layers are > truely freed only upon the ida destruction. The virtio_index_ida

On Wed, Sep 16, 2015 at 07:29:17PM -0500, Suman Anna wrote: > The virtio core uses a static ida named virtio_index_ida for > assigning index numbers to virtio devices during registration. > The ida core may allocate some internal idr cache layers and > an ida bitmap upon any ida allocation, and all these layers are > truely freed only upon the ida destruction. The virtio_index_ida