Commit graph

13 commits

Author SHA1 Message Date
Daniel Rosenberg
4f75c34fee ANDROID: sdcardfs: Don't d_drop in d_revalidate
After d_revalidate returns 0, the vfs will call
d_invalidate, which will call d_drop itself, along
with other cleanup.

Bug: 78262592
Change-Id: Idbb30e008c05d62edf2217679cb6a5517d8d1a2c
Signed-off-by: Daniel Rosenberg <drosen@google.com>
2018-05-18 20:31:59 +00:00
Daniel Rosenberg
86e6cbb5c6 ANDROID: sdcardfs: Check for private data earlier
When an sdcardfs dentry is destroyed, it may not yet
have its fsdata initialized. It must be checked before
we try to access the paths in its private data.

Additionally, when cleaning up the superblock after
a failure, we don't have our sb private data, so
check for that case.

Bug: 77923821
Change-Id: I89caf6e121ed86480b42024664453fe0031bbcf3
Signed-off-by: Daniel Rosenberg <drosen@google.com>
2018-04-25 02:43:27 +00:00
Daniel Rosenberg
a533221d29 ANDROID: sdcardfs: Check for NULL in revalidate
If the inode is in the process of being evicted,
the top value may be NULL.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 38502532
Change-Id: I0b9d04aab621e0398d44d1c5dc53293106aa5f89
2017-05-23 00:18:43 +00:00
Daniel Rosenberg
9516c5d5de ANDROID: sdcardfs: Move top to its own struct
Move top, and the associated data, to its own struct.
This way, we can properly track refcounts on top
without interfering with the inode's accounting.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 38045152
Change-Id: I1968e480d966c3f234800b72e43670ca11e1d3fd
2017-05-16 18:31:17 -07:00
Daniel Rosenberg
b878b26010 ANDROID: sdcardfs: Call lower fs's revalidate
We should be calling the lower filesystem's revalidate
inside of sdcardfs's revalidate, as wrapfs does.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 35766959
Change-Id: I939d1c4192fafc1e21678aeab43fe3d588b8e2f4
2017-04-26 16:56:28 -07:00
Daniel Rosenberg
9eb0b8ba1c ANDROID: sdcardfs: Fix style issues with comments
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 35331000
Change-Id: I8791ef7eac527645ecb9407908e7e5ece35b8f80
2017-03-23 20:13:01 -07:00
Daniel Rosenberg
dfdaa95844 ANDROID: sdcardfs: Fix formatting
This fixes various spacing and bracket related issues
pointed out by checkpatch.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 35331000
Change-Id: I6e248833a7a04e3899f3ae9462d765cfcaa70c96
2017-03-23 20:13:01 -07:00
Daniel Rosenberg
2c917ce671 ANDROID: sdcardfs: Switch to internal case insensitive compare
There were still a few places where we called into a case
insensitive lookup that was not defined by sdcardfs.
Moving them all to the same place will allow us to switch
the implementation in the future.

Additionally, the check in fixup_perms_recursive did not
take into account the length of both strings, causing
extraneous matches when the name we were looking for was
a prefix of the child name.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I45ce768cd782cb4ea1ae183772781387c590ecc2
2017-03-14 14:53:45 -07:00
Daniel Rosenberg
371536f070 ANDROID: sdcardfs: Use spin_lock_nested
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 36007653
Change-Id: I805d5afec797669679853fb2bb993ee38e6276e4
2017-03-14 14:53:44 -07:00
Daniel Rosenberg
4b7de83752 vfs: change d_canonical_path to take two paths
bug: 23904372
Change-Id: I4a686d64b6de37decf60019be1718e1d820193e6
Signed-off-by: Daniel Rosenberg <drosen@google.com>
2016-04-25 19:15:48 -07:00
Daniel Rosenberg
f06e869f93 sdcardfs: Add support for d_canonical_path
Change-Id: I5d6f0e71b8ca99aec4b0894412f1dfd1cfe12add
Signed-off-by: Daniel Rosenberg <drosen@google.com>
2016-03-22 20:27:37 -07:00
Daniel Campello
e76fbcd41a Port of sdcardfs to 4.4
Change-Id: I25b99ecf214e72ebf6a57ec3085972542a8d7951
Signed-off-by: Daniel Rosenberg <drosen@google.com>
2016-03-22 20:27:13 -07:00
Daniel Campello
84a1b7d3d3 Included sdcardfs source code for kernel 3.0
Only included the source code as is for kernel 3.0. Following patches
take care of porting this file system to version 3.10.

Change-Id: I09e76db77cd98a059053ba5b6fd88572a4b75b5b
Signed-off-by: Daniel Campello <campello@google.com>
2016-03-22 20:27:13 -07:00