user/sven/linux.git/fs/dlm/memory.c, branch v5.7

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193

2019-05-30T18:29:21Z

Based on 1 normalized pattern(s): this copyrighted material is made available to anyone wishing to use modify copy or redistribute it subject to the terms and conditions of the gnu general public license v 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 45 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.342746075@linutronix.de Signed-off-by: Greg Kroah-Hartman

dlm: NULL check before kmem_cache_destroy is not needed

2018-11-28T14:45:55Z

kmem_cache_destroy(NULL) is safe, so removes NULL check before freeing the mem. This patch also fix ifnullfree.cocci warnings. Signed-off-by: Wen Yang Signed-off-by: David Teigland

dlm: NULL dereference on failure in kmem_cache_create()

2012-05-15T15:39:28Z

We aren't allowed to pass NULL pointers to kmem_cache_destroy() so if both allocations fail, it leads to a NULL dereference. Signed-off-by: Dan Carpenter Signed-off-by: David Teigland

dlm: improve rsb searches

2011-07-12T21:02:09Z

By pre-allocating rsb structs before searching the hash table, they can be inserted immediately. This avoids always having to repeat the search when adding the struct to hash list. This also adds space to the rsb struct for a max resource name, so an rsb allocation can be used by any request. The constant size also allows us to finally use a slab for the rsb structs. Signed-off-by: David Teigland

dlm: always use GFP_NOFS

2009-11-30T22:34:43Z

Replace all GFP_KERNEL and ls_allocation with GFP_NOFS. ls_allocation would be GFP_KERNEL for userland lockspaces and GFP_NOFS for file system lockspaces. It was discovered that any lockspaces on the system can affect all others by triggering memory reclaim in the file system which could in turn call back into the dlm to acquire locks, deadlocking dlm threads that were shared by all lockspaces, like dlm_recv. Signed-off-by: David Teigland

dlm: fix up memory allocation flags

2008-12-23T16:15:40Z

Use ls_allocation for memory allocations, which a cluster fs sets to GFP_NOFS. Use GFP_NOFS for allocations when no lockspace struct is available. Taking dlm locks needs to avoid calling back into the cluster fs because write-out can require taking dlm locks. Cc: Christine Caulfield Signed-off-by: Steven Whitehouse Signed-off-by: David Teigland

dlm: add init and exit marks to init and exit functions

2008-02-07T05:41:22Z

it moves 365 bytes from .text to .init.text, and 30 bytes from .text to .exit.text, saves memory. Signed-off-by: Denis Cheng Signed-off-by: David Teigland

dlm: eliminate astparam type casting

2008-02-07T05:27:04Z

Put lkb_astparam in a union with a dlm_user_args pointer to eliminate a lot of type casting. Signed-off-by: David Teigland

dlm: use dlm prefix on alloc and free functions

2008-01-29T23:17:19Z

The dlm functions in memory.c should use the dlm_ prefix. Also, use kzalloc/kfree directly for dlm_direntry's, removing the wrapper functions. Signed-off-by: David Teigland

mm: Remove slab destructors from kmem_cache_create().

2007-07-20T01:11:58Z

Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt