completes, the file
system is ready to accept new requests.
During the same scan, it rebuilds the snapshot information and the list
available inodes.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/bbuild.c | 1602 +
f
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/perf.c | 594
fs/nova/perf.h | 96
fs/nova/stats.c | 685 +++
fs/nova/stats.h | 218 ++
4
Nova provides the normal ioctls for setting file attributes and provides a
/proc-based interface for taking snapshots.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/ioctl.c | 185 +++
fs/nova/sysfs.c
. There is probably a better approach to achieving this
goal.
The changes to nd_pmem are included in a later patch in this series.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/checksum.c | 912
fs/nova/mprotect.c
the file or directory is opened
by scanning its log.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/dir.c | 760 +++
fs/nova/file.c| 943 +
fs/nova/namei.c
| V |
+---+ +---+
| I | fast GC | I |
+---+ > +---+
| I | | I |
+---+ +---+
| I | | V |
+---+ +---+
|
V
+---+
| V |
+---+
| I |
+---+
| I |
+---+
| V |
+---+
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova
NOVA leverages the kernel's DAX mechanisms for mmap and file data access. Nova
maintains a red-black tree in DRAM (nova_inode_info_header.vma_tree) to track
which portions of a file have been mapped.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/dax.c
ead |-->| write | write |
| | | entry | entry |
| | +++
+--+
|... |
+--+ ++
| cpu 128 | | snap |
| head |-->| inode |
| | | entry |
| | +----+
+------+
Signed-off-by: Ste
(http://cseweb.ucsd.edu/~swanson/papers/FAST2016NOVA.pdf)
Hardening the NOVA File System
(http://cseweb.ucsd.edu/~swanson/papers/TechReport2017HardenedNOVA.pdf)
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
Documentation/filesystems/00-INDEX |2
Documentation/files
Add (and implement) a module command line option to nd_pmem to support
read-only pmem devices.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
arch/x86/include/asm/io.h |1 +
arch/x86/mm/ioremap.c | 25 ++---
drivers/nvdimm/pmem.c
. These include reserved inodes, a table of pointers to the journals
Nova uses for complex operations, and pointers to inodes tables. Nova
maintains replicas of the super block and reserved inodes in the last two
blocks of the PMEM area.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
f
numbers.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/inode.c | 1467 +++
fs/nova/inode.h | 389 +++
2 files changed, 1856 insertions(+)
create mode 100644 fs/nova/inode.c
create mode 100644 fs/nova/inode.h
|
| metadata |
| -> next block |
++
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/log.c | 1411 +
fs/nova/log.h | 333 +
2 files changed, 1744 insertions(+)
create mode
near the beginning of the file system.
During recovery, Nova scans the journals and undoes the operations described by
each entry.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/journal.c | 474 +
fs/nova/journal.h
to provide some control over where the blocks
come from. Nova uses this to allocate replicas of metadata far from one
another.
Signed-off-by: Steven Swanson <swan...@cs.ucsd.edu>
---
fs/nova/balloc.c | 827 ++
fs/nova/balloc.h | 118
2
in NOVA's
design.
NOVA was developed at the Non-Volatile Systems Laboratory in the Computer
Science and Engineering Department at the University of California, San Diego.
Its primary authors are Andiry Xu <jix...@eng.ucsd.edu>, Lu Zhang
<l...@eng.ucsd.edu>, and Steven Swanson <swan...@eng.u
the evening of July 21st.
Pre-registration is open (
https://www.eventbrite.com/e/pirl-registration-62219498194) and will be
$400. Space is limited.
If you have any questions, please contact Steven Swanson (
swan...@cs.ucsd.edu).
Organizing Committee
Steven Swanson (UCSD) Jim Fister (SNIA) Andy Rudoff
. There will be lots of time for informal
discussion and networking. Early registration ends July 10th.
If you have any questions, please contact Steven Swanson (swan...@cs.ucsd.edu).
Organizing Committee
Steven Swanson (UCSD) Jim Fister (SNIA) Andy Rudoff (Intel) Jishen
Zhao (UCSD) Joe Izraelevitz (UCSD
18 matches
Mail list logo
