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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-09 07:44:05 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-09 07:44:05 +0300 |
commit | fcc95f06403c956e3f50ca4a82db12b66a3078e0 (patch) | |
tree | 74bb3e387b635601ba351f621c7eea575e185aac /Documentation/filesystems/ceph.rst | |
parent | c6b80eb89b55590b12db11103913088735205b5c (diff) | |
parent | ef9157259fb7bb3bc2c61df227e36f1b861a4753 (diff) | |
download | linux-fcc95f06403c956e3f50ca4a82db12b66a3078e0.tar.xz |
Merge tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"The main items are:
- support for asynchronous create and unlink (Jeff Layton).
Creates and unlinks are satisfied locally, without waiting for a
reply from the MDS, provided the client has been granted
appropriate caps (new in v15.y.z ("Octopus") release). This can be
a big help for metadata heavy workloads such as tar and rsync.
Opt-in with the new nowsync mount option.
- multiple blk-mq queues for rbd (Hannes Reinecke and myself).
When the driver was converted to blk-mq, we settled on a single
blk-mq queue because of a global lock in libceph and some other
technical debt. These have since been addressed, so allocate a
queue per CPU to enhance parallelism.
- don't hold onto caps that aren't actually needed (Zheng Yan).
This has been our long-standing behavior, but it causes issues with
some active/standby applications (synchronous I/O, stalls if the
standby goes down, etc).
- .snap directory timestamps consistent with ceph-fuse (Luis
Henriques)"
* tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client: (49 commits)
ceph: fix snapshot directory timestamps
ceph: wait for async creating inode before requesting new max size
ceph: don't skip updating wanted caps when cap is stale
ceph: request new max size only when there is auth cap
ceph: cleanup return error of try_get_cap_refs()
ceph: return ceph_mdsc_do_request() errors from __get_parent()
ceph: check all mds' caps after page writeback
ceph: update i_requested_max_size only when sending cap msg to auth mds
ceph: simplify calling of ceph_get_fmode()
ceph: remove delay check logic from ceph_check_caps()
ceph: consider inode's last read/write when calculating wanted caps
ceph: always renew caps if mds_wanted is insufficient
ceph: update dentry lease for async create
ceph: attempt to do async create when possible
ceph: cache layout in parent dir on first sync create
ceph: add new MDS req field to hold delegated inode number
ceph: decode interval_sets for delegated inos
ceph: make ceph_fill_inode non-static
ceph: perform asynchronous unlink if we have sufficient caps
ceph: don't take refs to want mask unless we have all bits
...
Diffstat (limited to 'Documentation/filesystems/ceph.rst')
-rw-r--r-- | Documentation/filesystems/ceph.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/filesystems/ceph.rst b/Documentation/filesystems/ceph.rst index b46a7218248f..0aa70750df0f 100644 --- a/Documentation/filesystems/ceph.rst +++ b/Documentation/filesystems/ceph.rst @@ -107,17 +107,17 @@ Mount Options address its connection to the monitor originates from. wsize=X - Specify the maximum write size in bytes. Default: 16 MB. + Specify the maximum write size in bytes. Default: 64 MB. rsize=X - Specify the maximum read size in bytes. Default: 16 MB. + Specify the maximum read size in bytes. Default: 64 MB. rasize=X Specify the maximum readahead size in bytes. Default: 8 MB. mount_timeout=X Specify the timeout value for mount (in seconds), in the case - of a non-responsive Ceph file system. The default is 30 + of a non-responsive Ceph file system. The default is 60 seconds. caps_max=X |