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author | Tyler Hicks <tyhicks@canonical.com> | 2012-09-12 18:02:46 -0700 |
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committer | Tyler Hicks <tyhicks@canonical.com> | 2012-09-14 09:11:29 -0700 |
commit | 7149f2558d5b5b988726662fe58b1c388337805b (patch) | |
tree | 480ceac128f2c1779bd2a7f97b2075571fb19e95 /fs/ecryptfs/file.c | |
parent | e9bd8f1624cb0f647867d6cced79cb26ef3651bf (diff) | |
download | op-kernel-dev-7149f2558d5b5b988726662fe58b1c388337805b.zip op-kernel-dev-7149f2558d5b5b988726662fe58b1c388337805b.tar.gz |
eCryptfs: Write out all dirty pages just before releasing the lower file
Fixes a regression caused by:
821f749 eCryptfs: Revert to a writethrough cache model
That patch reverted some code (specifically, 32001d6f) that was
necessary to properly handle open() -> mmap() -> close() -> dirty pages
-> munmap(), because the lower file could be closed before the dirty
pages are written out.
Rather than reapplying 32001d6f, this approach is a better way of
ensuring that the lower file is still open in order to handle writing
out the dirty pages. It is called from ecryptfs_release(), while we have
a lock on the lower file pointer, just before the lower file gets the
final fput() and we overwrite the pointer.
https://launchpad.net/bugs/1047261
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Artemy Tregubenko <me@arty.name>
Tested-by: Artemy Tregubenko <me@arty.name>
Tested-by: Colin Ian King <colin.king@canonical.com>
Diffstat (limited to 'fs/ecryptfs/file.c')
0 files changed, 0 insertions, 0 deletions