9e1deeab34
Add missing pageq lock while uvm_pagefree() is called (either directly
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or indirectly). Reviewed by chuq.
2002-05-29 11:04:39 +00:00
1578726840
Just give up to do readahead rather than waiting busy pages.
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While I'm here, added few patchable variable so that one can
easily measure readahead behaviour.
2002-05-18 02:54:57 +00:00
3fa1c8abe9
Protect v_synclist with splbio(); note that LIST_REMOVE is not an idempotent
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operation if more than one LIST_REMOVE happens on interrupt, so both the test
for VONWORKLIST and the LIST_REMOVE(vp, v_synclist) need to be in splbio().
2002-05-14 19:37:18 +00:00
ea5cd1699b
Extern speclisth
2002-05-12 20:42:03 +00:00
293906a53a
Redo rev. 1.57 a bit different way; don't use `tpg' since it may be freed.
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Subtract the number of pages behind us when calculating new offset instead.
2002-05-10 07:51:37 +00:00
911c9febb2
Don't modify the local variable `n' in genfs_putpages(). It should contain
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the number of elements in the page array at the beginning of every iteration.
2002-05-10 02:51:44 +00:00
f1f51aa2b8
Move code shared by procfs and the kernel proper out of procfs and
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into the kernel proper (renaming functions from procfs_* to process_*).
2002-05-09 15:44:44 +00:00
e3cc9c0682
When traversing by list, if the page next to us is a page in the cluster,
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advance the pointer.
2002-05-09 07:22:09 +00:00
fabaf9a730
- In genfs_putpages(), no need to restrict the cluster within the given
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region.
- In uvm_aio_aiodone(), remove assertions no longer true.
2002-05-09 07:14:37 +00:00
8876669f4c
Since npages may includes number of pages behind us, we can't use it to
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update current offset. Instead, use the last page in the run of pages
to calculate new offset.
2002-05-06 00:42:22 +00:00
e6513c283e
Stylistic change; introduce new local variable and use it instead of
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sprinkling different expression to test if we're pagedaemon.
2002-05-06 00:18:15 +00:00
6335b88f05
We don't need to re-activate page in genfs_putpages() when GOP_WRITE returns
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ENOMEM (temporary memory shortage) since it is already handled in
uvm_aio_aiodone() for both async/sync case. Discussed with chuq.
2002-04-26 03:57:31 +00:00
37dc008ca3
Cleanup how file system configuration information is declared, grouping
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related information together, with the file system code itself.
This is just low-hanging fruit -- more to come.
2002-04-16 23:14:05 +00:00
6cfcfb947c
genfs_{compat_}getpages(): For PGO_LOCKED request, it is safe to return
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read only page if it was due to read fault. This avoid many unnecessary
read fault introduced by recent nfs_bio.c change. Reviewed by chuq.
2002-04-16 06:05:05 +00:00
08625200a0
KNF and other misc. cosmetic changes.
2002-04-16 06:00:46 +00:00
83bb6f6dd7
Changes to make it less likely to need to be revisited later again:
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* fdesc_attr(): don't panic for 'unknown' descriptor types, rather use
(*fp->f_ops->fo_stat)() hook, as for DTYPE_SOCKET and DTYPE_PIPE
XXX perhaps use different vnode type than VBAD for these?
* fdesc_setattr(): just return 0 regardless of type, rather than paniccing
for 'unknown' descriptor types
2002-04-02 17:46:06 +00:00
70ba374a66
Treat pipes like sockets and don't do setattr on them
2002-04-02 10:34:54 +00:00
72c455ce83
in genfs_compat_getpages(), clear any part of a page that
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VOP_READ() doesn't fill in (eg. because it's past EOF).
2002-03-22 03:51:51 +00:00
31144d9976
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
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indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.
2002-03-17 19:40:26 +00:00
a51be40dcb
don't yield the cpu in genfs_putpages() if we're the pagedaemon.
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pointed out by enami. fixes PR 15784.
2002-03-02 06:58:01 +00:00
9a623b9870
Don't use MALLOC for variable sized allocation.
2002-02-20 06:16:22 +00:00
96f907f394
fix two problems:
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- when yielding the cpu while using the vnode's page list, use a marker page
to keep our place in the list (like the other cases where we drop the lock).
- wait until no one else has the page busy before deciding if the page needs
to be cleaned. a page will be dirty while it's being initialized but will
be marked clean before PG_BUSY is cleared.
both found by enami.
2002-02-19 15:49:39 +00:00
fe24174a3b
Don't bother to subtract 0.
2002-02-13 05:20:41 +00:00
52a2a21502
Don't leave junk in pgs[] array since it will be passed to uvn_findpages()
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again.
2002-02-12 01:08:12 +00:00
0365a63944
in genfs_putpages():
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- yield the cpu if we've taken too long.
- when traversing by offset, skip over any pages that we clustered.
2002-01-26 02:44:27 +00:00
5ff60a19d9
Don't hide the real return code with EPERM.
2002-01-12 18:51:56 +00:00
5266303896
When checking for permissions, include the P_INEXEC test and return
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EAGAIN if the process is exec'ing.
2002-01-12 18:51:31 +00:00
67c310f08c
Apply the same P_INEXEC test to avoid the execve/trace problem using
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the procfs ptrace calls.
2002-01-11 22:02:56 +00:00
2776bd066f
add the entry for layer_getpages() to the VOP tables of the
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layered file systems that need it.
2002-01-04 07:19:33 +00:00
03ea276e84
in genfs_gop_write(), actually set the B_ASYNC flag on buffers that we're
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not going to wait for. this doesn't matter for real devices since we call
VOP_STRATEGY() directly, but NFS uses this flag to decide whether or not
to hand the buffer off to an nfsiod thread.
2001-12-31 06:44:58 +00:00
64b0c2adbb
in genfs_putpages(), we must wait for any pending write i/os to complete
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if the putpages request is synchronous.
2001-12-31 06:40:08 +00:00
40bf5f0e12
add some compatibility routines to allow mmap() to work non-UBCified
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filesystems (in the same non-coherent fashion that they worked before).
2001-12-18 07:49:36 +00:00
8e9cdbbd63
replace "vnode" and "vtext" with "file" and "exec" in uvmexp field names.
2001-12-09 03:07:43 +00:00
0931f31deb
add a VOP_PUTPAGES method for all the filesystems that don't have pages.
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do all the work for destroying syncfs vnodes in vfs_deallocate_syncvnode()
to make some new assertions work out.
2001-12-06 04:30:49 +00:00
1361ca58eb
be consistent, clear VONWORKLST when we take a syncer vnode off the
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syncer list.
2001-12-06 04:29:55 +00:00
4d14671458
add VOP_GETPAGES and VOP_PUTPAGES methods for layered filesystems.
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drop the interlock on the upper layer, acquire the interlock on the
lower layer.
2001-12-06 04:29:23 +00:00
5a690c92a1
add a VOP_PUTPAGES method for all the filesystems that don't have pages,
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just unlock the interlock.
2001-12-06 04:27:40 +00:00
03efee5585
* Allow machine-dependent code to specify hooks for ptrace(2)
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(__HAVE_PTRACE_MACHDEP) and procfs (__HAVE_PROCFS_MACHDEP).
These changes will allow platforms like x86 (XMM) and PowerPC
(AltiVec) to export extended register sets in a sane manner.
* Use __HAVE_PTRACE_MACHDEP to export x86 XMM registers (standard
FP + SSE/SSE2) using PT_{GET,SET}XMMREGS (in the machdep
ptrace request space).
* Use __HAVE_PROCFS_MACHDEP to export x86 XMM registers via
/proc/N/xmmregs in procfs.
2001-12-05 00:58:05 +00:00
420771d7cc
PR/14781: Matthew Fredette: Clamp the number of read-ahead pages to 16 because
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other code has this limit. Also while I am here, convert the magic 16 into
a #define constant and use it in the appropriate places. This is a temporary
fix, since all this read-ahead business is XXXUBC anyway.
2001-11-30 15:18:39 +00:00
2565646230
don't need <sys/types.h> when including <sys/param.h>
2001-11-15 09:47:59 +00:00
e4b00f433c
add RCSIDs
2001-11-10 13:33:40 +00:00
7b7e3f6b7e
Wrap long line and remove name of argument from function prototype.
2001-11-07 04:56:09 +00:00
8e5afc2cbe
Make the size of null node hash table to desiredvnodes instead of 16.
2001-11-07 04:55:26 +00:00
888e968e4d
Call hashdone where appropriate.
2001-11-07 04:21:26 +00:00
579ece8405
Cosmetic changes.
2001-11-07 04:15:41 +00:00
9af6d646c2
Fix typo in comment.
2001-11-07 04:04:10 +00:00
cf63a6b052
Remove some variables that are set but never used.
2001-11-06 07:20:37 +00:00
86c9e7e6d2
In procfs_domem() the addr variable is only needed if PMAP_NEED_PROCWR is
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defined.
2001-11-06 07:20:08 +00:00
6e46b6ec2c
s/genfs_do_putpages/genfs_gop_write/ in uvmhist.
2001-10-03 14:13:08 +00:00
f0b6149f57
change spec_{read,write}() to specify the device blkno in units of DEV_BSIZE
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rather than the device's sector size. this allows /dev/rcd0a and /dev/cd0a
to return the same data. fixes PRs 3261 and 14026.
2001-09-23 04:39:25 +00:00
enami