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PiperOrigin-RevId: 325531657
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PiperOrigin-RevId: 325490674
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PiperOrigin-RevId: 325388385
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Updates #1198
PiperOrigin-RevId: 325350818
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PiperOrigin-RevId: 325266487
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/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss
recovery in TCP.
PiperOrigin-RevId: 325157807
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When a directory is replaced by a rename operation, its link count should
reach zero. We were missing the link from `dir/.`
PiperOrigin-RevId: 325141730
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PiperOrigin-RevId: 325122849
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Also removes `--profile-goroutine` because it's equivalent
to `debug --stacks`.
PiperOrigin-RevId: 325061502
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This was discovered by syzkaller.
PiperOrigin-RevId: 325025193
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Discovered by syzkaller.
PiperOrigin-RevId: 324938438
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Go compiler barely inlines anything, so inline by hand
pwriteLocked since it's called from a single place.
PiperOrigin-RevId: 324937734
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PiperOrigin-RevId: 324931854
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The utility has several differences from the VFS1 equivalent:
- There are no weak references, which have a significant overhead
- In order to print useful debug messages with the type of the reference-
counted object, we use a generic Refs object with the owner type as a
template parameter. In vfs1, this was accomplished by storing a type name
and caller stack directly in the ref count (as in vfs1), which increases the
struct size by 6x. (Note that the caller stack was needed because fs types
like Dirent were shared by all fs implementations; in vfs2, each impl has
its own data structures, so this is no longer necessary.)
As an example, the utility is added to tmpfs.inode.
Updates #1486.
PiperOrigin-RevId: 324906582
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PiperOrigin-RevId: 324826968
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PiperOrigin-RevId: 324748508
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Fixes #3364
PiperOrigin-RevId: 324724614
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PiperOrigin-RevId: 324695672
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Fixes #2920.
PiperOrigin-RevId: 324695118
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context is passed to DecRef() and Release() which is
needed for SO_LINGER implementation.
PiperOrigin-RevId: 324672584
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Updates #1479, #2923.
PiperOrigin-RevId: 324658826
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PiperOrigin-RevId: 324309862
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PiperOrigin-RevId: 324279280
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PiperOrigin-RevId: 324259991
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Envoy (#170) uses this to get the original destination of redirected
packets.
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Move to setstat.go and add a FileDescription wrapper method.
PiperOrigin-RevId: 324165277
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PiperOrigin-RevId: 324127810
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PiperOrigin-RevId: 324125938
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PiperOrigin-RevId: 324100220
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Return on success should be 0, not size of the struct copied out.
PiperOrigin-RevId: 324029193
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Signed-off-by: Bin Lu <bin.lu@arm.com>
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This change allows the sentry to send FUSE_INIT request and process
the reply. It adds the corresponding structs, employs the fuse
device to send and read the message, and stores the results of negotiation
in corresponding places (inside connection struct).
It adds a CallAsync() function to the FUSE connection interface:
- like Call(), but it's for requests that do not expect immediate response (init, release, interrupt etc.)
- will block if the connection hasn't initialized, which is the same for Call()
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Compare Linux's fs/eventpoll.c:do_epoll_ctl(). I don't know where EPOLLRDHUP
came from.
PiperOrigin-RevId: 323874419
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full context switch: add fpsimd load/store support to container
application.
Signed-off-by: Bin Lu <bin.lu@arm.com>
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PiperOrigin-RevId: 323715260
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PiperOrigin-RevId: 323491461
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PiperOrigin-RevId: 323456118
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PiperOrigin-RevId: 323455097
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PiperOrigin-RevId: 323443142
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This PR adds the following:
- [x] Marshall-able structs for fuse headers
- [x] Data structures needed in /dev/fuse to communicate with the daemon server
- [x] Implementation of the device interface
- [x] Go unit tests
This change adds the `/dev/fuse` implementation. `Connection` controls the
communication between the server and the sentry. The FUSE server uses
the `FileDescription` interface to interact with the Sentry. The Sentry
implmenetation of fusefs, uses `Connection` and the Connection interface
to interact with the Server. All communication messages are in the form
of `go_marshal` backed structs defined in the ABI package.
This change also adds some go unit tests that test (pretty basically)
the interfaces and should be used as an example of an end to end FUSE
operation.
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/3083 from ridwanmsharif:ridwanmsharif/fuse-device-impl 69aa2ce970004938fe9f918168dfe57636ab856e
PiperOrigin-RevId: 323428180
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The subsequent systrap changes will need to import memmap from
the platform package.
PiperOrigin-RevId: 323409486
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We need to correctly distinguish instruction_abort/data_abort for
mem_abort@Arm64.
So, EC/WNR/FSC in esr_el1 should be checked.
Signed-off-by: Bin Lu <bin.lu@arm.com>
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At present, when doing syscall_kvm test, we need to
enable the function of ESR_ELx_SYS64_ISS_SYS_CNTVCT/ESR_ELx_SYS64_ISS_SYS_CNTFRQ to
successfully pass the test.
I set CNTKCTL_EL1.EL0VCTEN==1/CNTKCTL_EL1.EL0PCTEN==1, so that the related cases can passed.
Signed-off-by: Bin Lu <bin.lu@arm.com>
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PiperOrigin-RevId: 322954792
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PiperOrigin-RevId: 322937495
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- Check write permission on truncate(2). Unlike ftruncate(2),
truncate(2) fails if the user does not have write permissions
on the file.
- For gofers under InteropModeShared, check file type before
making a truncate request. We should fail early and avoid
making an rpc when possible. Furthermore, depending on the
remote host's failure may give us unexpected behavior--if the
host converts the truncate request to an ftruncate syscall on
an open fd, we will get EINVAL instead of EISDIR.
Updates #2923.
PiperOrigin-RevId: 322913569
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Fix typos.
PiperOrigin-RevId: 322913282
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Changes the API of tcpip.Clock to also provide a method for scheduling and
rescheduling work after a specified duration. This change also implements the
AfterFunc method for existing implementations of tcpip.Clock.
This is the groundwork required to mock time within tests. All references to
CancellableTimer has been replaced with the tcpip.Job interface, allowing for
custom implementations of scheduling work.
This is a BREAKING CHANGE for clients that implement their own tcpip.Clock or
use tcpip.CancellableTimer. Migration plan:
1. Add AfterFunc(d, f) to tcpip.Clock
2. Replace references of tcpip.CancellableTimer with tcpip.Job
3. Replace calls to tcpip.CancellableTimer#StopLocked with tcpip.Job#Cancel
4. Replace calls to tcpip.CancellableTimer#Reset with tcpip.Job#Schedule
5. Replace calls to tcpip.NewCancellableTimer with tcpip.NewJob.
PiperOrigin-RevId: 322906897
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PiperOrigin-RevId: 322904430
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PiperOrigin-RevId: 322890087
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