linux.git/include/linux/ceph/libceph.h, branch v5.7-rc2

ceph: move to a dedicated slabcache for mds requests

2020-03-30T10:42:41+00:00

On my machine (x86_64) this struct is 952 bytes, which gets rounded up
to 1024 by kmalloc. Move this to a dedicated slabcache, so we can
allocate them without the extra 72 bytes of overhead per.

Signed-off-by: Jeff Layton 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

ceph_parse_param(), ceph_parse_mon_ips(): switch to passing fc_log

2020-02-07T19:48:34+00:00

... and now errorf() et.al. are never called with NULL fs_context,
so we can get rid of conditional in those.

Signed-off-by: Al Viro

libceph, rbd, ceph: convert to use the new mount API

2019-11-27T21:28:37+00:00

Convert the ceph filesystem to the new internal mount API as the old
one will be obsoleted and removed.  This allows greater flexibility in
communication of mount parameters between userspace, the VFS and the
filesystem.

See Documentation/filesystems/mount_api.txt for more information.

[ Numerous string handling, leak and regression fixes; rbd conversion
  was particularly broken and had to be redone almost from scratch. ]

Signed-off-by: David Howells 
Signed-off-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

libceph: add function that reset client's entity addr

2019-09-16T10:06:23+00:00

This function also re-open connections to OSD/MON, and re-send in-flight
OSD requests after re-opening connections to OSD.

Signed-off-by: "Yan, Zheng" 
Reviewed-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

libceph: bump CEPH_MSG_MAX_DATA_LEN (again)

2019-07-08T12:01:45+00:00

This time for rbd object map.  Object maps are limited in size to
256000000 objects, two bits per object.

Signed-off-by: Ilya Dryomov 
Reviewed-by: Dongsheng Yang

libceph: remove ceph_get_direct_page_vector()

2019-07-08T12:01:40+00:00

This function is entirely unused.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: wait for latest osdmap in ceph_monc_blacklist_add()

2019-03-20T15:27:40+00:00

Because map updates are distributed lazily, an OSD may not know about
the new blacklist for quite some time after "osd blacklist add" command
is completed.  This makes it possible for a blacklisted but still alive
client to overwrite a post-blacklist update, resulting in data
corruption.

Waiting for latest osdmap in ceph_monc_blacklist_add() and thus using
the post-blacklist epoch for all post-blacklist requests ensures that
all such requests "wait" for the blacklist to come into force on their
respective OSDs.

Cc: stable@vger.kernel.org
Fixes: 6305a3b41515 ("libceph: support for blacklisting clients")
Signed-off-by: Ilya Dryomov 
Reviewed-by: Jason Dillaman

libceph: allow setting abort_on_full for rbd

2019-01-07T21:47:48+00:00

Introduce a new option abort_on_full, default to false. Then
we can get -ENOSPC when the pool is full, or reaches quota.

[ Don't show abort_on_full in /proc/mounts. ]

Signed-off-by: Dongsheng Yang 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: bump CEPH_MSG_MAX_DATA_LEN

2018-10-22T08:28:20+00:00

If the read is large enough, we end up spinning in the messenger:

  libceph: osd0 192.168.122.1:6801 io error
  libceph: osd0 192.168.122.1:6801 io error
  libceph: osd0 192.168.122.1:6801 io error

This is a receive side limit, so only reads were affected.

Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov

ceph: optimize memory usage

2018-04-02T08:12:49+00:00

In current code, regular file and directory use same struct
ceph_file_info to store fs specific data so the struct has to
include some fields which are only used for directory
(e.g., readdir related info), when having plenty of regular files,
it will lead to memory waste.

This patch introduces dedicated ceph_dir_file_info cache for
readdir related thins. So that regular file does not include those
unused fields anymore.

Signed-off-by: Chengguang Xu 
Reviewed-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov