Dan Cross
82638c019c
Avoid rereading the superblock in bfree
...
The superblock is read when the first process returns to
userspace (via the call to `iinit` from the first invocation of
`forkret`, when `first` is still set to 1) and cached in a
global; it is treated as immutable from that point on. There is
no reason to re-read it in bfree.
Removing this call seems to have simply been missed in 8320d61b
2019-08-19 19:25:43 -04:00
Dan Cross
0581c37baf
Removed unused dirlookup argument in create
...
The `off` argument to `dirlookup` is optional. It
was not being used in the `dirlookup` call in `create`,
so pass NULL instead and delete the unused local.
Signed-off-by: Dan Cross <cross@gajendra.net>
2019-08-19 13:22:35 -04:00
Frans Kaashoek
b818915f79
Update name
...
Use generic 6.828 url (without year)
2018-09-02 08:33:55 -04:00
Frans Kaashoek
308a3b88c9
thanks tyfkda
2018-08-31 09:21:19 -04:00
Frans Kaashoek
343255189e
thanks Wolfgang Keller
2018-08-31 08:41:23 -04:00
Frans Kaashoek
80f70c46df
x
2018-08-30 16:20:16 -04:00
Frans Kaashoek
1d19081efb
Allow holding to be called with interrupts enabled (for Mark Morrissey).
2018-08-30 16:14:34 -04:00
Frans Kaashoek
2c73068e82
Delete a patch
...
Adjust typesetting of code
2018-08-30 15:45:16 -04:00
Frans Kaashoek
e559fd2c5a
x
2018-08-30 14:47:07 -04:00
Frans Kaashoek
f30488793b
x
2018-08-30 14:16:29 -04:00
Frans Kaashoek
76d4005f9e
thanks mtasm
2018-08-30 14:10:27 -04:00
Frans Kaashoek
6710e5589d
thanks wxdao
2018-08-30 13:48:47 -04:00
Frans Kaashoek
96e4e2f4d1
thanks eyalz800
2018-08-30 13:46:48 -04:00
Frans Kaashoek
8f63beaacb
vectors.pl is executable and asks shell for perl
2018-08-30 13:36:07 -04:00
Frans Kaashoek
171c2cc6b8
thanks mataness
2018-08-30 13:30:50 -04:00
Frans Kaashoek
26108a3b99
thanks tyfkda
2018-08-30 13:27:57 -04:00
Frans Kaashoek
7f3528bcb3
x
2018-08-30 13:25:54 -04:00
Frans Kaashoek
210a0f0b30
Remove unused flags (thanks Wolfgang Keller)
2018-08-30 13:14:01 -04:00
Frans Kaashoek
b2ca8e3e23
x
2018-08-30 13:09:03 -04:00
Frans Kaashoek
960a94fb87
x
2018-08-30 12:12:16 -04:00
Frans Kaashoek
0b86d03767
Because sleeplocks replaced B_BUSY the holding test can
...
be more specific (thanks Mark Morrissey)
2018-08-30 11:57:46 -04:00
Frans Kaashoek
0b6f4c08b9
x
2018-08-30 11:42:10 -04:00
Robert Morris
0754d21c86
stricter log consumption by write()
2017-10-24 08:49:31 -04:00
Robert Morris
1ab23170a1
improve swtch comment
2017-10-08 07:12:31 -04:00
Robert Morris
4638cabf8c
fix runoff complaints about pagination and long lines
2017-08-29 14:11:59 -04:00
Frans Kaashoek
164f4bae54
thx
2017-08-10 07:09:53 -04:00
Frans Kaashoek
3e392c7288
Update comment to reflect xv6 doesn't have per-cpu segments anymore
2017-08-09 15:21:42 -04:00
Robert Morris
6389d9d410
nothing much
2017-08-09 14:16:55 -04:00
Frans Kaashoek
4f14d8d1e5
Commit to running on an SMP (perhaps with only 1 core). Remove most code
...
from picirq.c and remove timer.c completely. Update runoff.list.
2017-08-09 07:44:51 -04:00
Robert Morris
70705966ad
comment fixes
2017-08-09 06:54:45 -04:00
Frans Kaashoek
da3b931ddb
Thanks Anton Burtsev <aburtsev@uci.edu>
2017-08-08 19:42:51 -04:00
Robert Morris
a4ee6f7de3
fix iput() to more obviously avoid deadlock
2017-08-08 14:19:54 -04:00
Robert Morris
1c7aa96005
a little more lock documentation
2017-08-08 14:12:25 -04:00
Robert Morris
70d912b332
protect ip->valid and ip->nlink with sleep lock in iput()
2017-08-08 13:48:48 -04:00
Robert Morris
3375df5061
change ip->flags&I_VALID to ip->valid
2017-08-08 13:34:13 -04:00
Robert Morris
14270288b7
Merge branch 'master' of g.csail.mit.edu:xv6-dev
2017-08-08 13:27:06 -04:00
Robert Morris
aba8423c4a
frans' fixes to iput()
2017-08-08 13:26:57 -04:00
Robert Morris
9cec455b17
fs comment nits
2017-08-08 13:24:38 -04:00
Frans Kaashoek
825ce074b1
Remove some debugging statements
2017-08-07 15:15:18 -04:00
Frans Kaashoek
61cb32aa9b
Merge branch 'nogs'
2017-08-07 14:35:05 -04:00
Frans Kaashoek
5cbccef811
Merge branch 'patch-1' of https://github.com/aliceinwire/xv6-public
2017-08-07 13:44:03 -04:00
Frans Kaashoek
0249311675
Merge branch 'patch-1' of https://github.com/Saarett/xv6-public
2017-08-07 13:29:11 -04:00
Grant Wu
61f26e3c97
Fix typo in dirlookup
2017-04-26 19:56:51 -07:00
Alice Ferrazzi
1fb2ea8890
Update LICENSE
...
updated copyright year
2017-02-27 13:12:59 +09:00
Saarett
03b3086327
Free pgdir in setupkvm in case of mappages failure
...
There is a potential memory leak when mappages() fails inside setupkvm().
A call to freevm() is added in this case so as to reclaim the lost mapping pages.
2017-02-05 12:44:56 +02:00
Frans Kaashoek
c9fa90f7e5
A tiny bit of clean up (e.g., move code searching cpu array from lapic.c into
...
mycpu() in proc.c.
2017-02-01 20:36:41 -05:00
Frans Kaashoek
2e2d14c235
use panic
2017-02-01 19:21:43 -05:00
Frans Kaashoek
7c00ce8110
shorten comment
2017-02-01 19:18:47 -05:00
Frans Kaashoek
ed396c068b
Eliminate code for gs trick to track per-cpu state. We rely on lapiccpunum()
...
to find a per-cpu id with which we locate a cpu's cpu struct.
2017-02-01 18:04:13 -05:00
Frans Kaashoek
fbb4c09444
Read curproc from cpu structure, but be careful because after a schedule event
...
myproc() points to a different thread.
myproc();
sched();
myproc(); // this proc maybe different than the one before sched
Thus, in a function that operates on one thread better to retrieve the
current process once at the start of the function.
2017-01-31 20:21:14 -05:00
