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Fixes #1479, #317.
PiperOrigin-RevId: 334258052
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Do not release dirMu between checking whether to create a child and actually
inserting it.
Also fixes a bug in fusefs which was causing it to deadlock under the new
lock ordering. We do not need to call kernfs.Dentry.InsertChild from newEntry
because it will always be called at the kernfs filesystem layer.
Updates #1193.
PiperOrigin-RevId: 334049264
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Previously, we did not check the kcov mode when performing task work. As a
result, disabling kcov did not do anything.
Also avoid expensive atomic RMW when consuming coverage data. We don't need the
swap if the value is already zero (which is most of the time), and it is ok if
there are slight inconsistencies due to a race between coverage data generation
(incrementing the value) and consumption (reading a nonzero value and writing
zero).
PiperOrigin-RevId: 334049207
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This patch adds minor changes for Arm64 platform:
1, add SetRobustList/GetRobustList support for arm64 syscall module.
2, add newfstatat support for arm64 vfs2 syscall module.
3, add tls value in ProtoBuf.
Signed-off-by: Bin Lu <bin.lu@arm.com>
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after the SWITCH_TO_APP_PAGETABLE, the ASID is changed
to the application ASID, but there are still some
instruction before ERET, since these instruction is
not use the kernel address space, it may use the application's
TLB, which will cause fault, this patch can make sure that
after SWITCH_TO_APP_PAGETABLE sentry is still use kernel
address space which is mapped as Global.
Signed-off-by: Min Le <lemin.lm@antgroup.com>
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The FD should hold a reference on the dentry they were opened on which in turn
holds a reference on the inode it points to.
PiperOrigin-RevId: 333589223
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Update signatures for:
- All methods in inodeDirectory
- deferDecRef() and Filesystem.droppedDentries
- newSyntheticDirectory()
- `slot`s used in OrderedChildren and subsequent methods like
replaceChildLocked() and checkExistingLocked()
- stepExistingLocked(), walkParentDirLocked(), checkCreateLocked()
Updates #1193
PiperOrigin-RevId: 333558866
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Updates #1663
PiperOrigin-RevId: 333539293
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It is called from the kernfs code (OpenAt and revalidateChildLocked()).
For RemoveChildLocked, it is opposed. We need to call it from fuse.RmDir and
fuse.Unlink.
PiperOrigin-RevId: 333453218
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VFS2 socket record is not removed from the system-wide
socket table when the socket is released, which will lead
to a memory leak. This patch fixes this issue.
Fixes: #3874
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
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SocketEntry can be confusing with the template types as the 'Entry'
is usually used as a suffix for list element types, e.g. socketEntry
in the same package. Suggested by Dean (@dean-deng).
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
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PiperOrigin-RevId: 333447255
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There were some instances where we were not enabling leak checking.
PiperOrigin-RevId: 333418571
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PiperOrigin-RevId: 333412836
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PiperOrigin-RevId: 333404727
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Use HandleIOErrorVFS2 instead of custom error handling.
PiperOrigin-RevId: 333227581
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Update signatures for:
- walkExistingLocked
- checkDeleteLocked
- Inode.Open
Updates #1193
PiperOrigin-RevId: 333163381
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some application such as openjdk will excute
DC CVAU at el0, if SCTLR_UCI is not set, it
will trap to EL1 which will cause panic.
Signed-off-by: Min Le <lemin.lm@antgroup.com>
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Originally, we avoided partial writes in case it caused us to write a partial
packet to a socket-backed specialFileFD. However, this check causes splicing
from a pipe to specialFileFD to fail if we hit EOF on the pipe.
PiperOrigin-RevId: 333016216
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Updates #1193.
PiperOrigin-RevId: 332939026
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PiperOrigin-RevId: 332760843
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