kernel/linux.git/include/linux/ceph/libceph.h, branch v3.18.135

libceph: bump CEPH_MSG_MAX_DATA_LEN

2018-11-22T06:32:46+00:00

commit 94e6992bb560be8bffb47f287194adf070b57695 upstream. 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 Signed-off-by: Greg Kroah-Hartman

libceph: remove redundant declaration

2014-10-14T19:57:02+00:00

ceph_release_page_vector was defined twice in libceph.h Signed-off-by: Fabian Frederick Signed-off-by: Ilya Dryomov

ceph_sync_read: stop poking into iov_iter guts

2014-05-06T21:39:42+00:00

Signed-off-by: Al Viro

libceph: add ceph_kv{malloc,free}() and switch to them

2014-01-26T10:34:23+00:00

Encapsulate kmalloc vs vmalloc memory allocation and freeing logic into two helpers, ceph_kvmalloc() and ceph_kvfree(), and switch to them. ceph_kvmalloc() kmalloc()'s a maximum of 8 pages, anything bigger is vmalloc()'ed with __GFP_HIGHMEM set. This changes the existing behaviour: - for buffers (ceph_buffer_new()), from trying to kmalloc() everything and using vmalloc() just as a fallback - for messages (ceph_msg_new()), from going to vmalloc() for anything bigger than a page - for messages (ceph_msg_new()), from disallowing vmalloc() to use high memory Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: all features fields must be u64

2013-12-31T18:32:08+00:00

In preparation for ceph_features.h update, change all features fields from unsigned int/u32 to u64. (ceph.git has ~40 feature bits at this point.) Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

libceph: create source file "net/ceph/snapshot.c"

2013-05-02T04:20:08+00:00

This creates a new source file "net/ceph/snapshot.c" to contain utility routines related to ceph snapshot contexts. The main motivation was to define ceph_create_snap_context() as a common way to create these structures, but I've moved the definitions of ceph_get_snap_context() and ceph_put_snap_context() there too. (The benefit of inlining those is very small, and I'd rather keep this collection of functions together.) Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: define CEPH_MSG_MAX_MIDDLE_LEN

2013-05-02T04:16:29+00:00

This is probably unnecessary but the code read as if it were wrong in read_partial_message(). Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: drop return value from page vector copy routines

2013-02-20T01:14:05+00:00

The return values provided for ceph_copy_to_page_vector() and ceph_copy_from_page_vector() serve no purpose, so get rid of them. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: use void pointers in page vector functions

2013-02-20T01:14:04+00:00

The functions used for working with ceph page vectors are defined with char pointers, but they're really intended to operate on untyped data. Change the types of these function parameters to (void *) to reflect this. (Note that the functions now assume void pointer arithmetic works like arithmetic on char pointers.) Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: add a compatibility check interface

2013-02-14T02:29:11+00:00

An upcoming change implements semantic change that could lead to a crash if an old version of the libceph kernel module is used with a new version of the rbd kernel module. In order to preclude that possibility, this adds a compatibilty check interface. If this interface doesn't exist, the modules are obviously not compatible. But if it does exist, this provides a way of letting the caller know whether it will operate properly with this libceph module. Perhaps confusingly, it returns false right now. The semantic change mentioned above will make it return true. This resolves: http://tracker.ceph.com/issues/3800 Signed-off-by: Alex Elder Reviewed-by: Josh Durgin