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This change also brings back the stack.Route.ResolveWith method so that
we can immediately resolve a route when sending an NA in response to a
a NS with a source link layer address option.
Test: ipv6_test.TestNeighorSolicitationResponse
PiperOrigin-RevId: 337185461
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Control messages should be released on Read (which ignores the control message)
or zero-byte Send. Otherwise, open fds sent through the control messages will
be leaked.
PiperOrigin-RevId: 337110774
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All shm segments in an IPC namespace should be released once that namespace is
destroyed. Add reference counting to IPCNamespace so that once the last task
with a reference on it exits, we can trigger a destructor that will clean up
all shm segments that have not been explicitly freed by the application.
PiperOrigin-RevId: 337032977
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PiperOrigin-RevId: 336976081
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PiperOrigin-RevId: 336974095
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PiperOrigin-RevId: 336970511
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PiperOrigin-RevId: 336962937
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Remove the duplicate NA size variable while I'm here.
See https://tools.ietf.org/html/rfc4861#section-4.4 for the packet format.
PiperOrigin-RevId: 336943206
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The sentry page cache stores file contents at page granularity; this is
necessary for memory mappings. Thus file offset ranges passed to
fsutil.FileRangeSet.Fill() must be page-aligned. If the read callback passed to
Fill() returns (partial read, nil error) when reading up to EOF (which is the
case for p9.ClientFile.ReadAt() since 9P's Rread cannot convey both a partial
read and EOF), Fill() will re-invoke the read callback to try to read from EOF
to the end of the containing page, which is harmless but needlessly expensive.
Fix this by handling file size explicitly in fsutil.FileRangeSet.Fill().
PiperOrigin-RevId: 336934075
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Use the correct constant (Solicit, not Advert) while I'm here.
PiperOrigin-RevId: 336924605
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This fixes reference leaks related to accidentally forgetting to DecRef()
after calling one or the other.
PiperOrigin-RevId: 336918922
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The required states may simply not be observed by the thread running bounce, so
track guest and user generations to ensure that at least one of the desired
state transitions happens.
Fixes #3532
PiperOrigin-RevId: 336908216
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In addition to fixing reference leaks, this change also releases memory used
by regular tmpfs files once the containing filesystem is released.
PiperOrigin-RevId: 336833111
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Singleton filesystem like devpts and devtmpfs have a single filesystem shared
among all mounts, so they acquire a "self-reference" when initialized that
must be released when the entire virtual filesystem is released at sandbox
exit.
PiperOrigin-RevId: 336828852
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PiperOrigin-RevId: 336822021
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verity Mu should be per file system instead of global, so that enabling
and verifying in different file systems won't block each other.
Also Lock verity Mu in PRead.
PiperOrigin-RevId: 336779356
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Merkle tree library was originally using Read/Seek to access data and
tree, since the parameters are io.ReadSeeker. This could cause race
conditions if multiple threads accesses the same fd to read. Here we
change to use ReaderAt, and implement it with PRead to make it thread
safe.
PiperOrigin-RevId: 336779260
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This change aims to fix the memory leak issue reported in #3933.
Background:
VFS2 kernfs kept accumulating invalid dentries if those dentries were not
walked on. After substantial consideration of the problem by our team, we
decided to have an LRU cache solution. This change is the first part to that
solution, where we don't cache anything. The LRU cache can be added on top of
this.
What has changed:
- Introduced the concept of an inode tree in kernfs.OrderedChildren.
This is helpful is cases where the lifecycle of an inode is different from
that of a dentry.
- OrderedChildren now deals with initialized inodes instead of initialized
dentries. It now implements Lookup() where it constructs a new dentry
using the inode.
- OrderedChildren holds a ref on all its children inodes. With this change,
now an inode can "outlive" a dentry pointing to it. See comments in
kernfs.OrderedChildren.
- The kernfs dentry tree is solely maintained by kernfs only. Inode
implementations can not modify the dentry tree.
- Dentries that reach ref count 0 are removed from the dentry tree.
- revalidateChildLocked now defer-DecRefs the newly created dentry from
Inode.Lookup(), limiting its life to the current filesystem operation. If
refs are picked on the dentry during the FS op (via an FD or something),
then it will stick around and will be removed when the FD is closed. So there
is essentially _no caching_ for Look()ed up dentries.
- kernfs.DecRef does not have the precondition that fs.mu must be locked.
Fixes #3933
PiperOrigin-RevId: 336768576
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PiperOrigin-RevId: 336719900
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PiperOrigin-RevId: 336694658
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Signed-off-by: Min Le <lemin.lm@antgroup.com>
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The fix in commit 028e045da93b7c1c26417e80e4b4e388b86a713d was incorrect as
it can cause the right edge of the window to shrink when we announce
a zero window due to receive buffer being full as its done before the check
for seeing if the window is being shrunk because of the selected window.
Further the window was calculated purely on available space but in cases where
we are getting full sized segments it makes more sense to use the actual bytes
being held. This CL changes to use the lower of the total available space vs
the available space in the maximal window we could advertise minus the actual
payload bytes being held.
This change also cleans up the code so that the window selection logic is
not duplicated between getSendParams() and windowCrossedACKThresholdLocked.
PiperOrigin-RevId: 336404827
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RACK detects packet reordering by checking if the sender received ACK for
the packet which has the sequence number less than the already acknowledged
packets.
PiperOrigin-RevId: 336397526
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PiperOrigin-RevId: 336395445
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PiperOrigin-RevId: 336366624
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PiperOrigin-RevId: 336362818
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