On 4/20/07, Andreas Gruenbacher [EMAIL PROTECTED] wrote:
Yes, that one, sorry. The values it obtains that way are not reliable.
Why should the mount point info together with the filesystem type not
be reliable? You're trying to find an excuse to break tings, that
seems all there is.
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To
On 4/20/07, Andreas Gruenbacher [EMAIL PROTECTED] wrote:
Possibly for fstatfs(): fstatfs() has no way of looking up mount points per
path name in /proc/mounts, and so it resorts to mapping from the numeric
statfs-f_type to the filesystem name (e.g., ext3), looks up the first
mount point with
.
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. Add to then the block granularity (we use f_bsize as
returned from fstatfs but that's not the best value in some cases) and
you have compelling data to have generic code in the kernel. Then libc
implementation can then go away completely which is a good thing.
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this unless
compression is turned off.
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already been written posix_fallocate cannot change it.
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implementation of memory
mapped files. You don't use MAP_SHARED on such filesystems, it'll eat
your kittens sooner or later anyway.
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at runtime) then the code is dropped. E.g., the
current Fedora glibc does not support 2.6.8 or earlier.
So, don't let the compat code be a factor in the decision making.
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a mmap(MAP_SHARED) page has
been written to.
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On 3/2/07, Dave Kleikamp [EMAIL PROTECTED] wrote:
Then there's no need for sys_allocate to return a long.
Every syscall must return a long. Otherwise you can have problems on
64-bit archs.
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in
glibc in case the syscall does not exist at all.
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Evgeniy Polyakov wrote:
I think that mean that everybody is happy with APi, design and set of
features.
No comment means that I still have not been able to test anything since
regardless of what version I tried, it failed to build.
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it is up to the proponents of
readdirplus to show this is not such a situation.
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and
this means then that there is no long file path to follow, all file
names are local to the directory opened with opendir().
My but feeling is that the improvements are minimal for normal (not
cluster etc) filesystems and hence the improvements for kernel.org would
be minimal.
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Also, implementing
the compatibility support for this (statlite-stat(), flags=$all_valid)
is trivial, if potentially less performant (though no worse than today).
We're not talking about statlite. The ls case is about getdirentplus.
I fail to see evidence that it is really needed.
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useful to introduce a new system call just to have
this support.
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is really only useful for 'ls -l'. But then you need
st_size and st_?time. So what is gained with readdirplus?
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is provided the readdirplus plans are put on
hold. statlite I have no problems with if the semantics is changed as I
explained.
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and there is no 'statlite' variant. Are all
places for readdir is used non-critical for performance or depend on
accurate information?
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functions.
glibc 2.1 has a define option (__USE_FILE_OFFSET64) which enables
this by default;
No, __USE_FILE_OFFSET64 is no option. This is an libc internal macros
which you never ever must look at.
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