xavi/android_kernel_m2note/fs/sdcardfs, branch ng-7.1.2

ANDROID: sdcardfs: Protect set_top

2019-07-20T10:20:44+00:00

If the top is changed while we're attempting to use it, it's possible that the reference will be put while we are in the process of grabbing a reference. Now we grab a spinlock to protect grabbing our reference count. Additionally, we now set the inode_info's top value to point to it's own data when initializing, which makes tracking changes easier. Change-Id: If15748c786ce4c0480ab8c5051a92523aff284d2 Signed-off-by: Daniel Rosenberg

Revert "ANDROID: sdcardfs: notify lower file of opens"

2019-07-20T10:20:44+00:00

This reverts commit fd825dd8ffd9c4873f80438c3030dd21c204512d. Instead of calling notify within sdcardfs, which reverse the order of notifications during an open with truncate, we'll make fs_notify worry about it. Change-Id: Ic634401c0f223500066300a4df8b1453a0b35b60 Bug: 70706497 Signed-off-by: Daniel Rosenberg

ANDROID: sdcardfs: Use lower getattr times/size

2019-07-20T10:20:44+00:00

We now use the lower filesystem's getattr for time and size related information. Change-Id: I3dd05614a0c2837a13eeb033444fbdf070ddce2a Signed-off-by: Daniel Rosenberg Bug: 72007585

ANDROID: sdcardfs: Wait for file flush to complete

2019-07-18T17:59:28+00:00

Sdcardfs needs to wait for the file to finish writing before returning an error. Backport from 3.18 to 3.10 kernel. Change-Id: I0fbdfd9a4c46ad34b8826099d9e3b255289d4794

ANDROID: sdcardfs: Fix missing break on default_normal

2018-12-21T12:52:35+00:00

Signed-off-by: Daniel Rosenberg Bug: 64672411 Change-Id: I98796df95dc9846adb77a11f49a1a254fb1618b1

ANDROID: sdcardfs: Add option to not link obb

2018-12-21T12:51:32+00:00

Add mount option unshared_obb to not link the obb folders of multiple users together. Bug: 27915347 Test: mount with option. Check if altering one obb alters the other Signed-off-by: Daniel Rosenberg Change-Id: I3956e06bd0a222b0bbb2768c9a8a8372ada85e1e

ANDROID: sdcardfs: Add option to drop unused dentries

2018-12-21T12:49:41+00:00

This adds the nocache mount option, which will cause sdcardfs to always drop dentries that are not in use, preventing cached entries from holding on to lower dentries, which could cause strange behavior when bypassing the sdcardfs layer and directly changing the lower fs. Change-Id: I70268584a20b989ae8cfdd278a2e4fa1605217fb Signed-off-by: Daniel Rosenberg

ANDROID: sdcardfs: Add sandbox

2018-12-21T12:41:21+00:00

Android/sandbox is treated the same as Android/data Bug: 27915347 Test: ls -l /sdcard/Android/sandbox/*somepackage* after creating the folder. Signed-off-by: Daniel Rosenberg Change-Id: I7ef440a88df72198303c419e1f2f7c4657f9c170

ANDROID: sdcardfs: Change current->fs under lock

2018-11-27T11:53:45+00:00

bug: 111641492 Change-Id: I79e9894f94880048edaf0f7cfa2d180f65cbcf3b Reported-by: Jann Horn Signed-off-by: Daniel Rosenberg

ANDROID: sdcardfs: Don't use OVERRIDE_CRED macro

2018-11-27T11:53:01+00:00

The macro hides some control flow, making it easier to run into bugs. bug: 111642636 Change-Id: I37ec207c277d97c4e7f1e8381bc9ae743ad78435 Reported-by: Jann Horn Signed-off-by: Daniel Rosenberg