linux-dev/drivers/staging/lustre/lnet, branch master

staging: lustre: delete the filesystem from the tree.

2018-06-05T17:22:35Z

The Lustre filesystem has been in the kernel tree for over 5 years now. While it has been an endless source of enjoyment for new kernel developers learning how to do basic codingstyle cleanups, as well as an semi-entertaining source of bewilderment from the vfs developers any time they have looked into the codebase to try to figure out how to port their latest api changes to this filesystem, it has not really moved forward into the "this is in shape to get out of staging" despite many half-completed attempts. And getting code out of staging is the main goal of that portion of the kernel tree. Code should not stagnate and it feels like having this code in staging is only causing the development cycle of the filesystem to take longer than it should. There is a whole separate out-of-tree copy of this codebase where the developers work on it, and then random changes are thrown over the wall at staging at some later point in time. This dual-tree development model has never worked, and the state of this codebase is proof of that. So, let's just delete the whole mess. Now the lustre developers can go off and work in their out-of-tree codebase and not have to worry about providing valid changelog entries and breaking their patches up into logical pieces. They can take the time they have spend doing those types of housekeeping chores and get the codebase into a much better shape, and it can be submitted for inclusion into the real part of the kernel tree when ready. Cc: Oleg Drokin Cc: Andreas Dilger Cc: James Simmons Signed-off-by: Greg Kroah-Hartman

staging: lustre: include linux/highmem.h when needed

2018-05-31T17:01:46Z

Something in recent linux-next kernels caused linux/highmem.h to no longer be included implicitly from o2iblnd_cb.c, causing a build failure: drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c: In function 'kiblnd_kvaddr_to_page': drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:549:15: error: 'PKMAP_BASE' undeclared (first use in this function); did you mean 'RTM_BASE'? if (vaddr >= PKMAP_BASE && ^~~~~~~~~~ RTM_BASE drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:549:15: note: each undeclared identifier is reported only once for each function it appears in drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:550:28: error: 'LAST_PKMAP' undeclared (first use in this function); did you mean 'AT_HWCAP'? vaddr < (PKMAP_BASE + LAST_PKMAP * PAGE_SIZE)) { ^~~~~~~~~~ AT_HWCAP This adds back an explicit include for the header. Signed-off-by: Arnd Bergmann Reviewed-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: remove libcfs_all.h

2018-05-25T16:36:43Z

In the remaining files that include libcfs_all.h, replace it with other include files as necessary, then remove libcfs_all.h Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: move all libcfs_all includes except in lustre/lnet/libcfs/

2018-05-25T16:36:43Z

Again, most of these are not needed. Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: remove libcfs_all.h from includes lustre/lnet

2018-05-25T16:36:18Z

Some of these include files didn't need to include libcfs_all.h. A couple did so replace with just the base include files needed. Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: remove libcfs_all.h includes from lnet/klnd

2018-05-25T16:36:18Z

Other smaller include files are sufficient. Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: don't include libcfs.h in lnet/lib-lnet.h

2018-05-25T16:36:18Z

We want to be more focused in what is included where. So we remove libcfs.h from where it isn't needed. Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: start moving includes out of libcfs.h

2018-05-25T16:34:03Z

Lots of places include libcfs.h, and it includes lots of other include files. Many of these aren't needed in many places. It is tidier and better documentation to just include what is needed. So remove all the includes from libcfs.h and create libcfs_all.h which contains them. Then change every reference to libcfs.h to instead include libcfs_all.h Next several patches will remove that from various files in small batches Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: replace memory_presure funcitons by standard interfaces.

2018-05-25T16:29:10Z

Use memalloc_noreclaim_save() and memalloc_noreclaim_restore(), and for testing, just directly test the flag in current->flags Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman

staging: lustre: move lnet_debug_log_upcall declaration to tracefile.h

2018-05-25T16:29:10Z

Both files that use this variable include tracefile.h, and it seems a more suitable home for the declaration. Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman