v2: fix bugs that Luis pointed out
close race window involving Uptodate flag
have copy_file_range do uninlining
dirty caps after updating i_inline_version
This is the second posting of this set. It closes some other race
windows, and should handle the cap dirtying better than the first.
The current code that handles uninlining data is racy. The uninlining
and the update of i_inline_version are not well coordinated, so one task
could end up uninlining the data and then performing a write to the OSD
and then a second task could end up uninlining the data again and
clobber the first task's write.
The first couple of patches do a little cleanup of the uninlining helper
code, and then the last patch fixes the potential race.
Jeff Layton (5):
ceph: make ceph_uninline_data take inode pointer
ceph: pass unlocked page to ceph_uninline_data
ceph: fix potential races in ceph_uninline_data
ceph: lock page before checking Uptodate flag
ceph: handle inlined files in copy_file_range
fs/ceph/addr.c | 149 ++++++++++++++++++++++++++++++------------------
fs/ceph/file.c | 52 +++++++++--------
fs/ceph/super.h | 2 +-
3 files changed, 123 insertions(+), 80 deletions(-)
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2.21.0
