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PiperOrigin-RevId: 234147487
Change-Id: I779a6012832bb94a6b89f5bcc7d821b40ae969cc
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If a background process tries to read from a TTY, linux sends it a SIGTTIN
unless the signal is blocked or ignored, or the process group is an orphan, in
which case the syscall returns EIO.
See drivers/tty/n_tty.c:n_tty_read()=>job_control().
If a background process tries to write a TTY, set the termios, or set the
foreground process group, linux then sends a SIGTTOU. If the signal is ignored
or blocked, linux allows the write. If the process group is an orphan, the
syscall returns EIO.
See drivers/tty/tty_io.c:tty_check_change().
PiperOrigin-RevId: 234044367
Change-Id: I009461352ac4f3f11c5d42c43ac36bb0caa580f9
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PiperOrigin-RevId: 234011346
Change-Id: Ic69375ddb3794dd0d3d6e62ee4dc60fdf4baf2c7
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We need to update the package lists, otherwise apt-get
install can request an old package which has been
removed from repositories.
PiperOrigin-RevId: 233879031
Change-Id: I2e1b3afd9d01008f774f10efd8852fd3f5e1c882
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PACKET_RX_RING allows the use of an mmapped buffer to receive packets from the
kernel. This should cut down the number of host syscalls that need to be made
to receive packets when the underlying fd is a socket of the AF_PACKET type.
PiperOrigin-RevId: 233834998
Change-Id: I8060025c6ced206986e94cc46b8f382b81bfa47f
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- Fix CopyIn/CopyOut/ZeroOut range checks.
- Include the faulting signal number in the panic message.
PiperOrigin-RevId: 233829501
Change-Id: I8959ead12d05dbd4cd63c2b908cddeb2a27eb513
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PiperOrigin-RevId: 233802562
Change-Id: I40e1b13fd571daaf241b00f8df4bcedd034dc3f1
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Linux started doing this in b8be15d588060a03569ac85dc4a0247460988f5b
("x86/fpu/xstate: Re-enable XSAVES"), which first appeared in 4.8.
PiperOrigin-RevId: 233800931
Change-Id: Icac2c2b03ccf1a91f3070431efb5152ca619fca3
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PiperOrigin-RevId: 233516412
Change-Id: I7a0f1443de7eeebb5d8ad59e4759ca2e036a3c4d
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PiperOrigin-RevId: 233458853
Change-Id: I92c734b8075aa31e040fe7b4770bcf608e271e7a
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RFC7323 recommends that if the timestamp option was negotiated
then all packets should carry a TCP Timestamp and any packets that
do not should be dropped.
Netstack implemented this behaviour. Linux OTOH does not and will
accept such packets. This change makes Netstack behaviour compatible
with Linux.
Also now that we allow such packets, we do need to update RTO calculations
based on these packets even if timestamp option is enabled.
PiperOrigin-RevId: 233432268
Change-Id: I9f4742ae6b63930ac3b5e37d8c238761e6a4b29f
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Also switch to the correct casing style for local address variables.
PiperOrigin-RevId: 233161128
Change-Id: Ibc4a10a5d3ab04c40907aa885e8237b255c65a79
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fs/gofer/inodeOperations.Release does some asynchronous work. Previously it
was calling fs.Async with an anonymous function, which caused the function to
be allocated on the heap. Because Release is relatively hot, this results in a
lot of small allocations and increased GC pressure, noticeable in perf profiles.
This CL adds a new function, AsyncWithContext, which is just like Async, but
passes a context to the async function. It avoids the need for an extra
anonymous function in fs/gofer/inodeOperations.Release. The Async function
itself still requires a single anonymous function.
PiperOrigin-RevId: 233141763
Change-Id: I1dce4a883a7be9a8a5b884db01e654655f16d19c
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CopyObjectOut grows its destination byte slice incrementally, causing
many small slice allocations on the heap. This leads to increased GC and
noticeably slower stat calls.
PiperOrigin-RevId: 233140904
Change-Id: Ieb90295dd8dd45b3e56506fef9d7f86c92e97d97
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PiperOrigin-RevId: 233139020
Change-Id: I2e7089fa25d20e5662eb941054a684d41f5d3e12
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PiperOrigin-RevId: 233124342
Change-Id: Id4b4857af89815ffb9254cc30df4244b2768d9f2
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This adds an extra Reflection call to CopyObjectOut, but avoids many small
slice allocations if the object is large, since without this we grow the
backing slice incrementally as we encode more data.
PiperOrigin-RevId: 233110960
Change-Id: I93569af55912391e5471277f779139c23f040147
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Prevents URPC FDs from being closed mid-call, especially if they
are used as raw FDs.
PiperOrigin-RevId: 233087955
Change-Id: I815a2ff32cc5f03774605aef0b35a32862f8e633
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Also includes a few fixes for IPv4 multicast support. IPv6 support is coming in
a followup CL.
PiperOrigin-RevId: 233008638
Change-Id: If7dae6222fef43fda48033f0292af77832d95e82
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PiperOrigin-RevId: 232990964
Change-Id: Icfa426d5e83c7d3e56b0b92e6a9e1229bcb8361b
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PiperOrigin-RevId: 232948478
Change-Id: Ib830121e5e79afaf5d38d17aeef5a1ef97913d23
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It currently allocates a new context on the heap each time it is called. Some
of these are in relatively hot paths like signal delivery and releasing gofer
inodes. It is also called very commonly in afterLoad. All of these should
benefit from fewer heap allocations.
PiperOrigin-RevId: 232938873
Change-Id: I53cec0ca299f56dcd4866b0b4fd2ec4938526849
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PiperOrigin-RevId: 232937200
Change-Id: I5c3709cc8f1313313ff618a45e48c14a3a111cb4
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PiperOrigin-RevId: 232914984
Change-Id: Id2643d7ad8e986ca9be76d860788a71db2674cda
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PiperOrigin-RevId: 232776481
Change-Id: Ic19d4aa6322fef71621bad0e9fb8bdedf6694114
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- Change proc to return envp on overwrite of argv with limitations from
upstream.
- Add unit tests
- Change layout of argv/envp on the stack so that end of argv is contiguous with
beginning of envp.
PiperOrigin-RevId: 232506107
Change-Id: I993880499ab2c1220f6dc456a922235c49304dec
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Multiple tests were creating the same directory before removing it, making it
possible for concurrent tests to fail because the directory already exists.
PiperOrigin-RevId: 232389814
Change-Id: I35d409fff4b3fd864b30fee742cb587b14975c23
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PiperOrigin-RevId: 232375745
Change-Id: I26146ad65fac1dcdc5fcb4b11a1580133f9ca46d
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PiperOrigin-RevId: 232071420
Change-Id: I5aa57f3dc4aac637d6f467445b4b3110fc08ac80
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Dirty should be set only when the attribute is changed in the cache
only. Instances where the change was also sent to the backing file
doesn't need to dirty the attribute.
Also remove size update during WriteOut as writing dirty page would
naturaly grow the file if needed.
RELNOTES: relnotes is needed for the parent CL.
PiperOrigin-RevId: 232068978
Change-Id: I00ba54693a2c7adc06efa9e030faf8f2e8e7f188
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PiperOrigin-RevId: 232047515
Change-Id: I00f036816e320356219be7b2f2e6d5fe57583a60
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PiperOrigin-RevId: 231889261
Change-Id: I482f1df055bcedf4edb9fe3fe9b8e9c80085f1a0
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PiperOrigin-RevId: 231864273
Change-Id: I8545b72b615f5c2945df374b801b80be64ec3e13
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PiperOrigin-RevId: 231861005
Change-Id: I134d4e20cc898d44844219db0a8aacda87e11ef0
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PiperOrigin-RevId: 231856279
Change-Id: I175db87374890a62a3a3c2ddef727668ff854ce4
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This changed required making fsutil.HostMappable use
a backing file to ensure the correct FD would be used
for read/write operations.
RELNOTES: relnotes is needed for the parent CL.
PiperOrigin-RevId: 231836164
Change-Id: I8ae9639715529874ea7d80a65e2c711a5b4ce254
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RELNOTES: sticky bit propagates to gofers now.
PiperOrigin-RevId: 231822453
Change-Id: I73426170b9457350480a3b144a2baf937e7cb477
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Nothing reads them and they can simply get stale.
Generated with:
$ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD
PiperOrigin-RevId: 231818945
Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
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PiperOrigin-RevId: 231811387
Change-Id: Ib143fb9a4d0fa1f105d1a3a3bd533dfc44e792af
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Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: If35459be78e023346a140184401172f8e023c7f9
PiperOrigin-RevId: 231638020
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quoting what "rscheff@gmx.at" pointed out over email.
"IsLost in RFC3517 is defined as >= (DupThresh * SMSS) while
RFC6675 improves upon this, and defines IsLost as >
((DupThresh - 1) * SMSS + 1).
The latter addresses situations where partial segments (size < MSS)
are sent (eg. last segment of a http protocol message sent with PSH
being less than MSS is common)."
PiperOrigin-RevId: 231512331
Change-Id: I1addd4a92e3e7baeb0bdda46463ebfae435da958
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PiperOrigin-RevId: 231506385
Change-Id: I739ca24a152b32130ab4c6cdd200242d2fb37e31
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PiperOrigin-RevId: 231504064
Change-Id: I585b769aef04a3ad7e7936027958910a6eed9c8d
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Also adds a test for regular NIC forwarding.
PiperOrigin-RevId: 231495279
Change-Id: Ic7edec249568e9ad0280cea77eac14478c9073e1
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stdout can be (and, in automated testing, often is) a host pipe or
similar resource shared between multiple parallel tests, such that it
can become transiently full during testing.
PiperOrigin-RevId: 231413569
Change-Id: Id14991b5f71e53c894695899e65e1be4dd228cc6
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PiperOrigin-RevId: 231404512
Change-Id: I31efcc23a0c4a48ef6fbba3ca07415d79290f55c
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This should reduce the number of syscalls required to process packets
significantly and improve throughputs.
PiperOrigin-RevId: 231366886
Change-Id: I8b38077262bf9c53176bc4a94b530188d3d7c0ca
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Signed-off-by: Shijiang Wei <mountkin@gmail.com>
Change-Id: I032f834edae5c716fb2d3538285eec07aa11a902
PiperOrigin-RevId: 231318438
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PiperOrigin-RevId: 231301228
Change-Id: I3e18f3a12a35fb89a22a8c981188268d5887dc61
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We were modifying InodeSimpleAttributes.Unstable.AccessTime without holding
the necessary lock. Luckily for us, InodeSimpleAttributes already has a
NotifyAccess method that will do the update while holding the lock.
In addition, we were holding dfo.dir.mu.Lock while setting AccessTime, which
is unnecessary, so that lock has been removed.
PiperOrigin-RevId: 231278447
Change-Id: I81ed6d3dbc0b18e3f90c1df5e5a9c06132761769
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