search for: ebusy

Returning EMFILE (process has too many open files) is incorrect to indicate a port is already open by another process. Use EBUSY for that. This does change what we report to userspace, but I believe userspace can look at it this way: it gets EBUSY, a new error code, instead of EMFILE. It's still an error, and that's not changing. Reported-by: Mateusz Guzik <mguzik at redhat.com> Signed-off-by: Amit Shah <...

Returning EMFILE (process has too many open files) is incorrect to indicate a port is already open by another process. Use EBUSY for that. This does change what we report to userspace, but I believe userspace can look at it this way: it gets EBUSY, a new error code, instead of EMFILE. It's still an error, and that's not changing. Reported-by: Mateusz Guzik <mguzik at redhat.com> Signed-off-by: Amit Shah <...

...-- a/Documentation/vm/hmm.rst > +++ b/Documentation/vm/hmm.rst > @@ -237,7 +237,7 @@ The usage pattern is:: > ret = hmm_range_snapshot(&range); > if (ret) { > up_read(&mm->mmap_sem); > - if (ret == -EAGAIN) { > + if (ret == -EBUSY) { > /* > * No need to check hmm_range_wait_until_valid() return value > * on retry we will get proper error with hmm_range_snapshot() > diff --git a/mm/hmm.c b/mm/hmm.c > index e1eedef129cf..16b6731a34db 100644 > --- a/mm/hmm.c > +++ b/...

...7d90964abbb0..710ce1c701bf 100644 --- a/Documentation/vm/hmm.rst +++ b/Documentation/vm/hmm.rst @@ -237,7 +237,7 @@ The usage pattern is:: ret = hmm_range_snapshot(&range); if (ret) { up_read(&mm->mmap_sem); - if (ret == -EAGAIN) { + if (ret == -EBUSY) { /* * No need to check hmm_range_wait_until_valid() return value * on retry we will get proper error with hmm_range_snapshot() diff --git a/mm/hmm.c b/mm/hmm.c index ac238d3f1f4e..3abc2e3c1e9f 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -951,7 +951,7 @@ EXPORT...

...7d90964abbb0..710ce1c701bf 100644 --- a/Documentation/vm/hmm.rst +++ b/Documentation/vm/hmm.rst @@ -237,7 +237,7 @@ The usage pattern is:: ret = hmm_range_snapshot(&range); if (ret) { up_read(&mm->mmap_sem); - if (ret == -EAGAIN) { + if (ret == -EBUSY) { /* * No need to check hmm_range_wait_until_valid() return value * on retry we will get proper error with hmm_range_snapshot() diff --git a/mm/hmm.c b/mm/hmm.c index d48b9283725a..1d57c39c1d8b 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -946,7 +946,7 @@ EXPORT...

...7d90964abbb0..710ce1c701bf 100644 --- a/Documentation/vm/hmm.rst +++ b/Documentation/vm/hmm.rst @@ -237,7 +237,7 @@ The usage pattern is:: ret = hmm_range_snapshot(&range); if (ret) { up_read(&mm->mmap_sem); - if (ret == -EAGAIN) { + if (ret == -EBUSY) { /* * No need to check hmm_range_wait_until_valid() return value * on retry we will get proper error with hmm_range_snapshot() diff --git a/mm/hmm.c b/mm/hmm.c index e1eedef129cf..16b6731a34db 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -946,7 +946,7 @@ EXPORT...

...> +++ b/Documentation/vm/hmm.rst > > @@ -237,7 +237,7 @@ The usage pattern is:: > > ret = hmm_range_snapshot(&range); > > if (ret) { > > up_read(&mm->mmap_sem); > > - if (ret == -EAGAIN) { > > + if (ret == -EBUSY) { > > /* > > * No need to check hmm_range_wait_until_valid() return value > > * on retry we will get proper error with hmm_range_snapshot() > > diff --git a/mm/hmm.c b/mm/hmm.c > > index e1eedef129cf..16b6731a34db 100644 > &...

...>vma->vm_mm->mmap_sem; > return (int)ret; > + } > > if (!hmm_range_wait_until_valid(range, NOUVEAU_RANGE_FAULT_TIMEOUT)) { > /* You can delete this comment (only the first line is visible here) since it is about the "old API". Also, it should return -EBUSY not -EAGAIN since it means there was a range invalidation collision (similar to hmm_range_fault() if !range->valid). > @@ -515,15 +517,14 @@ nouveau_range_fault(struct hmm_mirror *mirror, struct hmm_range *range, > > ret = hmm_range_fault(range, block); nouveau_range_fault() is...

...are still some Solaris rmdir() warnings being logged to syslog in 1.1.rc1 in nfs_flush_file_handle_cache_dir(): Feb 23 13:09:51 sx3 dovecot: [ID 107833 mail.error] IMAP(ran04): \ nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device busy Manual for rmdir on Solaris states: EBUSY The directory to be removed is the mount point for a mounted file system. We are using /var/mail mounted from NFS, which explains the EBUSY return code. Not sure how you would be able to get the cache flushed in this situation. -- Dean Brooks dean at iglou.com

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau. The first 4 patches are a bug fix for nouveau, which I suspect should go into this merge window even if the code is marked as staging, just to avoid people copying the breakage. Changes since v1: - don't

...deletions(-) diff --git a/mm/hmm.c b/mm/hmm.c index c85ed7d4e2ce..d125df698e2b 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -974,7 +974,7 @@ long hmm_range_snapshot(struct hmm_range *range) do { /* If range is no longer valid force retry. */ if (!range->valid) - return -EAGAIN; + return -EBUSY; vma = find_vma(hmm->mm, start); if (vma == NULL || (vma->vm_flags & device_vma)) @@ -1069,10 +1069,8 @@ long hmm_range_fault(struct hmm_range *range, bool block) do { /* If range is no longer valid force retry. */ - if (!range->valid) { - up_read(&hmm->mm->...

...ne VMBUS_IRQ_VECTOR IRQ5_VECTOR +static int vmbus_irq; /* Main vmbus driver data structure */ struct vmbus_driver_context { @@ -57,6 +55,27 @@ struct vmbus_driver_context { struct vm_device device_ctx; }; +/* + * Find an un-used IRQ that the VMBUS can use. If none is available; + * return -EBUSY. + */ +static int vmbus_get_irq(void) +{ + unsigned int avail_irq_mask; + int irq = -EBUSY; + + /* + * Pick the first unused interrupt. HyperV can + * interrupt us on any interrupt line we specify. + */ + + avail_irq_mask = probe_irq_on(); + if (avail_irq_mask != 0) + irq = ffs(avail_irq_mask);...

...ne VMBUS_IRQ_VECTOR IRQ5_VECTOR +static int vmbus_irq; /* Main vmbus driver data structure */ struct vmbus_driver_context { @@ -57,6 +55,27 @@ struct vmbus_driver_context { struct vm_device device_ctx; }; +/* + * Find an un-used IRQ that the VMBUS can use. If none is available; + * return -EBUSY. + */ +static int vmbus_get_irq(void) +{ + unsigned int avail_irq_mask; + int irq = -EBUSY; + + /* + * Pick the first unused interrupt. HyperV can + * interrupt us on any interrupt line we specify. + */ + + avail_irq_mask = probe_irq_on(); + if (avail_irq_mask != 0) + irq = ffs(avail_irq_mask);...

Is there anybody who has made experiences with "subject"? I tried to get a samba printserver vers 2.2.1a on a suse linux box. It worked successfully so my win 98 clients are able to print via cups on an network printer. We also have an existing os/2 "warpserver for ebusiness" as the PDC and fileserver which one do the authentication of all users. I'm still not able to

I have been working on converting Jerome's hmm_dummy driver and self tests into a stand-alone set of tests to be included in tools/testing/selftests/vm and came across these two bug fixes in the process. The tests aren't quite ready to be posted as a patch. I'm posting the fixes now since I thought they shouldn't wait. They should probably have a fixes line but with all the HMM

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau. The first 4 patches are a bug fix for nouveau, which I suspect should go into this merge window even if the code is marked as staging, just to avoid people copying the breakage. Changes since v2: - new patch

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau. Changes since v1: - don't return the valid state from hmm_range_unregister - additional nouveau cleanups

...;last is supposed to be updated after every write to the pfns, so that it can be returned by hmm_range_fault(). However, this is not done consistently. Fortunately nothing checks the return code of hmm_range_fault() for anything other than error. More importantly last must be set before returning -EBUSY as it is used to prevent reading an output pfn as an input flags when the loop restarts. For clarity and simplicity make hmm_range_fault() return 0 or -ERRNO. Only set last when returning -EBUSY. Signed-off-by: Jason Gunthorpe <jgg at mellanox.com> --- Documentation/vm/hmm.rst...

...pdated after every write to the > pfns, so that it can be returned by hmm_range_fault(). However, this is > not done consistently. Fortunately nothing checks the return code of > hmm_range_fault() for anything other than error. > > More importantly last must be set before returning -EBUSY as it is used to > prevent reading an output pfn as an input flags when the loop restarts. > > For clarity and simplicity make hmm_range_fault() return 0 or -ERRNO. Only > set last when returning -EBUSY. > > Signed-off-by: Jason Gunthorpe <jgg at mellanox.com> > --- &gt...

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau.