group block locked. If filesystem has any active snapshots, bawrite
can come back trying to allocate new snapshot data block from the same
cylinder group and cause panic due to recursive lock attempt.
PR: 64206
Reviewed by: mckusick
Tested by: pjd
dependent function by the same name and a machine-independent function,
sf_buf_mext(). Aside from the virtue of making more of the code machine-
independent, this change also makes the interface more logical. Before,
sf_buf_free() did more than simply undo an sf_buf_alloc(); it also
unwired and if necessary freed the page. That is now the purpose of
sf_buf_mext(). Thus, sf_buf_alloc() and sf_buf_free() can now be used
as a general-purpose emphemeral map cache.
might be enqueued on a sleep queue but not be asleep when the timeout fires
if it is blocked on a lock trying to check for pending signals before going
to sleep. In the case of fixing up the TDF_TIMEOUT race, however, the
thread must be marked asleep.
Reported by: kan (the bogus one)
addresses. For arch's with 64-bit longs, this is a nop, but for i386 this
allows sysinstall to properly handle disks and filesystems > 1 TB.
Changes from the original patch include:
- Use d_addr_t rather than inventing a blkcnt type based on int64_t.
- Use strtoimax() rather than strtoull() to parse d_addr_t's from config
files.
- Use intmax_t casts and %jd rather than %llu to printf d_addr_t values.
Tested on: i386
Tested by: kuriyama
Submitted by: julian
MFC after: 1 month
o Add a -D option to not attempt to create the home directory.
o Treat the /nonexistent home directory specially. It means the user has
no home directory and it should not be created.
o Update Copyright year and my email.
mini-layer. I don't have time to bing it forward into the GEOM world, and
no one else has stepped forward to claim it. It'll be in the Attic for safe
keeping for now.
Use kern_open() to implement creat() rather than taking the long route
through open(). Mark creat as MPSAFE.
While I'm at it, mark nosys() (syscall 0) as MPSAFE, for all the
difference it will make.
set it to avoid the need for a bunch of code that tests whether or
not the lock member is set to REQ_WIRED in order to determine which
length member should be used.
Fix another bug in the oldlen return value code.
Fix a potential wired memory leak if a sysctl handler uses
sysctl_wire_old_buffer() and returns an EAGAIN error to trigger
a retry.
If vslock() returns ENOMEM, sysctl_wire_old_buffer() should set
wiredlen to zero and return zero (success) so that the handler will
operate according to sysctl(3):
The size of the buffer is given by the location specified by
oldlenp before the call, and that location gives the amount
of data copied after a successful call and after a call that
returns with the error code ENOMEM.
The handler will return an ENOMEM error because the zero length
buffer will overflow.
length, and flags fields at the end of the SRM boot sector so that SRM can
find the bootstrap code. This fixes bsdlabel -m alpha to generate bootable
disklabels.
Reviewed by: phk
in the system on shutdown and restores the settings on boot. The settings
can also be reset to the saved values via 'mixer reload'.
Reviewed by: current@
