Introduce a mount option for explicitly opening a device's zones when opening
the seq zone file for writing. This way we prevent resource exhaustion on
devices that export a maximum open zones limit.
Changes to v3:
- Introduce unlocked zonefs_io_error
- Rework failure of zone close on file close
Changes to v2:
- Clear ZONEFS_ZONE_OPEN flag on error
- Fix missing newline
Johannes Thumshirn (4):
zonefs: introduce helper for zone management
zonefs: provide zonefs_io_error variant that can be called with
i_truncate_mutex held
zonefs: open/close zone on file open/close
zonefs: document the explicit-open mount option
Documentation/filesystems/zonefs.rst | 15 ++
fs/zonefs/super.c | 239 ++++++++++++++++++++++++---
fs/zonefs/zonefs.h | 10 ++
3 files changed, 244 insertions(+), 20 deletions(-)
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2.26.2
