Age | Commit message (Collapse) | Author |
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Updates #179
PiperOrigin-RevId: 314563830
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PiperOrigin-RevId: 314450191
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PiperOrigin-RevId: 314449030
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PiperOrigin-RevId: 314415253
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This change adds more information about what needs to be done
to implement `/dev/fuse`
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Splice, setxattr and removexattr should generate events. Note that VFS2 already
generates events for extended attributes.
Updates #1479.
PiperOrigin-RevId: 314244261
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gofer.filesystem.createAndOpenChildLocked() doesn't need to take a reference on
the new dentry since vfs.FileDescription.Init() will do so.
PiperOrigin-RevId: 314242127
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Using tee instead of read to detect when a O_RDONLY|O_NONBLOCK pipe FD has a
writer circumvents the problem of what to do with the byte read from the pipe,
avoiding much of the complexity of the fdpipe package.
PiperOrigin-RevId: 314216146
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PiperOrigin-RevId: 314186752
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PiperOrigin-RevId: 313871804
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None of the dependencies have changed in 1.15. It may be possible to simplify
some of the wrappers in rawfile following 1.13, but that can come in a later
change.
PiperOrigin-RevId: 313863264
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PiperOrigin-RevId: 313842690
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Limited to tmpfs. Inotify support in other filesystem implementations to
follow.
Updates #1479
PiperOrigin-RevId: 313828648
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PiperOrigin-RevId: 313817646
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Support in other filesystem impls is still needed. Unlike in Linux and vfs1, we
need to plumb inotify down to each filesystem implementation in order to keep
track of links/inode structures properly.
IN_EXCL_UNLINK still needs to be implemented, as well as a few inotify hooks
that are not present in either vfs1 or vfs2. Those will be addressed in
subsequent changes.
Updates #1479.
PiperOrigin-RevId: 313781995
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This makes it straightforward to create bind mounts internally in VFS2: Given a
bind mount root represented by vfs.VirtualDentry vd:
- Create a new mount with VFS.NewDisconnectedMount(vd.Mount().Filesystem(),
vd.Dentry()).
- Connect the resulting mount in the appropriate namespace with
VFS.ConnectMountAt().
Note that the resulting bind mount is non-recursive; recursive bind mounting
requires explicitly duplicating all children of the original mount, which is
best handled internally by VFS.
Updates #179
PiperOrigin-RevId: 313703963
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PiperOrigin-RevId: 313600051
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Inotify sends events when a watch target is reaches a link count of 0 (see
include/linux/fsnotify.h:fsnotify_inoderemove). Currently, we do not account
for both dir/ and dir/.. in unlink, causing
syscalls/linux/inotify.cc:WatchTargetDeletionGeneratesEvent to fail because
the expected inotify events are not generated.
Furthermore, we should DecRef() once the inode reaches zero links; otherwise,
we will leak a reference.
PiperOrigin-RevId: 313502091
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PiperOrigin-RevId: 313332542
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Updates #138
PiperOrigin-RevId: 313326354
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PiperOrigin-RevId: 313300882
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This change was derived from a change by:
Reapor-Yurnero <reapor.yurnero@gmail.com>
And has been modified by:
Adin Scannell <ascannell@google.com>
(The original change author is preserved for the commit.)
This change implements gap tracking in the segment set by adding additional
information in each node, and using that information to speed up gap finding
from a linear scan to a O(log(n)) walk of the tree.
This gap tracking is optional, and will default to off except for segment
instances that set gapTracking equal to 1 in their const lists.
PiperOrigin-RevId: 312621607
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PiperOrigin-RevId: 312559861
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In VFS1, both fs/host and fs/gofer used the same utils for host file mappings.
Refactor parts of fsimpl/gofer to create similar utils to share with
fsimpl/host (memory accounting code moved to fsutil, page rounding arithmetic
moved to usermem).
Updates #1476.
PiperOrigin-RevId: 312345090
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On native Linux, calling recv/read right after send/write sometimes returns
EWOULDBLOCK, if the data has not made it to the receiving socket (even though
the endpoints are on the same host). Poll before reading to avoid this.
Making this change also uncovered a hostinet bug (gvisor.dev/issue/2726),
which is noted in this CL.
PiperOrigin-RevId: 312320587
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PiperOrigin-RevId: 312299234
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As new functionality is added to VFS2, corresponding files in VFS1
don't need to be changed.
PiperOrigin-RevId: 312153799
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* Aggregate architecture Overview in "What is gVisor?" as it makes more sense
in one place.
* Drop "user-space kernel" and use "application kernel". The term "user-space
kernel" is confusing when some platform implementation do not run in
user-space (instead running in guest ring zero).
* Clear up the relationship between the Platform page in the user guide and the
Platform page in the architecture guide, and ensure they are cross-linked.
* Restore the call-to-action quick start link in the main page, and drop the
GitHub link (which also appears in the top-right).
* Improve image formatting by centering all doc and blog images, and move the
image captions to the alt text.
PiperOrigin-RevId: 311845158
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