Miklos,
Patches 1-3 address your review comments and some
issues I found with fallocate() and copy_file_range()
helpers.
They are supposed to replace the patch already in overlayfs-next
97e147358bea ("vfs: wrap write f_ops with file_{start,end}_write()")
Let me know if you want me to rebase them on top of the already
committed change.
Patches 4-5 implement overlayfs freeze and are more of an RFC
at this point, but they are tested.
v3:
- Verify regular file before calling file_start_write()
v2:
- file_start_write() gets freeze protection on both upper and overlay
- convert file ops wraped with sb_start_write() to file_start_write()
v1:
- freeze upper on freeze of overlay
Amir Goldstein (5):
vfs: deny fallocate() on directory
vfs: deny copy_file_range() for non regular files
vfs: wrap write f_ops with file_{start,end}_write()
vfs: freeze protect overlay inode on file_start_write()
ovl: support freeze/thaw super
fs/open.c | 14 ++++++--------
fs/overlayfs/super.c | 12 ++++++++++++
fs/read_write.c | 9 +++++++--
include/linux/fs.h | 43 +++++++++++++++++++++++++++++--------------
4 files changed, 54 insertions(+), 24 deletions(-)
--
2.7.4
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