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This is necessary to implement file seals for memfds.
PiperOrigin-RevId: 225239394
Change-Id: Ib3f1ab31385afc4b24e96cd81a05ef1bebbcbb70
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PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
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When revalidating a Dirent, if the inode id is the same, then we don't need to
throw away the entire Dirent. We can just update the unstable attributes in
place.
If the inode id has changed, then the remote file has been deleted or moved,
and we have no choice but to throw away the dirent we have a look up another.
In this case, we may still end up losing a mounted dirent that is a child of
the revalidated dirent. However, that seems appropriate here because the entire
mount point has been pulled out from underneath us.
Because gVisor's overlay is at the Inode level rather than the Dirent level, we
must pass the parent Inode and name along with the Inode that is being
revalidated.
PiperOrigin-RevId: 210431270
Change-Id: I705caef9c68900234972d5aac4ae3a78c61c7d42
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PiperOrigin-RevId: 207125440
Change-Id: I6c572afb4d693ee72a0c458a988b0e96d191cd49
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PiperOrigin-RevId: 207037226
Change-Id: I8b5f1a056d4f3eab17846f2e0193bb737ecb5428
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PiperOrigin-RevId: 207007153
Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9
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This method allows an eventfd inside the Sentry to be registered with with
the host kernel.
Update comment about memory mapping host fds via CachingInodeOperations.
PiperOrigin-RevId: 204784859
Change-Id: I55823321e2d84c17ae0f7efaabc6b55b852ae257
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PiperOrigin-RevId: 201401727
Change-Id: Ia5589882ba58a00efb522ab372e206b7e8e62aee
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PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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