kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Linus Torvalds	885a86abe2	Shrink "struct object" a bit This shrinks "struct object" by a small amount, by getting rid of the "struct type *" pointer and replacing it with a 3-bit bitfield instead. In addition, we merge the bitfields and the "flags" field, which incidentally should also remove a useless 4-byte padding from the object when in 64-bit mode. Now, our "struct object" is still too damn large, but it's now less obviously bloated, and of the remaining fields, only the "util" (which is not used by most things) is clearly something that should be eventually discarded. This shrinks the "git-rev-list --all" memory use by about 2.5% on the kernel archive (and, perhaps more importantly, on the larger mozilla archive). That may not sound like much, but I suspect it's more on a 64-bit platform. There are other remaining inefficiencies (the parent lists, for example, probably have horrible malloc overhead), but this was pretty obvious. Most of the patch is just changing the comparison of the "type" pointer from one of the constant string pointers to the appropriate new TYPE_xxx small integer constant. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Peter Eriksen	90321c106c	Replace xmalloc+memset(0) with xcalloc. Signed-off-by: Peter Eriksen <s022018@student.dtu.dk> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	8f1d2e6f49	[PATCH] Compilation: zero-length array declaration. ISO C99 (and GCC 3.x or later) lets you write a flexible array at the end of a structure, like this: struct frotz { int xyzzy; char nitfol[]; /* more / }; GCC 2.95 and 2.96 let you to do this with "char nitfol[0]"; unfortunately this is not allowed by ISO C90. This declares such construct like this: struct frotz { int xyzzy; char nitfol[FLEX_ARRAY]; / more */ }; and git-compat-util.h defines FLEX_ARRAY to 0 for gcc 2.95 and empty for others. If you are using a C90 C compiler, you should be able to override this with CFLAGS=-DFLEX_ARRAY=1 from the command line of "make". Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	27dedf0c3b	GIT 0.99.9j aka 1.0rc3 Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Sergey Vlasov	4a4e6fd74f	Rework object refs tracking to reduce memory usage Store pointers to referenced objects in a variable sized array instead of linked list. This cuts down memory usage of utilities which use object references; e.g., git-fsck-objects --full on the git.git repository consumes about 2 MB of memory tracked by Massif instead of 7 MB before the change. Object refs are still the biggest consumer of memory (57%), but the malloc overhead for a single block instead of a linked list is substantially smaller. Signed-off-by: Sergey Vlasov <vsu@altlinux.ru> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	9534f40bc4	Be careful when dereferencing tags. One caller of deref_tag() was not careful enough to make sure what deref_tag() returned was not NULL (i.e. we found a tag object that points at an object we do not have). Fix it, and warn about refs that point at such an incomplete tag where needed. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	37fde874c2	Fix send-pack for non-commitish tags. Again I left the v2.6.11-tree tag behind. My bad. This commit makes sure that we do not barf when pushing a ref that is a non-commitish tag. You can update a remote ref under the following conditions: * You can always use --force. * Creating a brand new ref is OK. * If the remote ref is exactly the same as what you are pushing, it is OK (nothing is pushed). * You can replace a commitish with another commitish which is a descendant of it, if you can verify the ancestry between them; this and the above means you have to have what you are replacing. * Otherwise you cannot update; you need to use --force. Signed-off-by: Junio C Hamano <junkio@cox.net>	20 years ago
Daniel Barkalow	89e4202f98	[PATCH] Parse tags for absent objects Handle parsing a tag for a non-present object. This adds a function to lookup an object with lookup_* for * in a string, so that it can get the right storage based on the "type" line in the tag. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago
Jason McMullan	5d6ccf5ce7	[PATCH] Anal retentive 'const unsigned char *sha1' Make 'sha1' parameters const where possible Signed-off-by: Jason McMullan <jason.mcmullan@timesys.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago
Nicolas Pitre	d1af002dc6	[PATCH] delta check This adds knowledge of delta objects to fsck-cache and various object parsing code. A new switch to git-fsck-cache is provided to display the maximum delta depth found in a repository. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago
Nicolas Pitre	bd2c39f58f	[PATCH] don't load and decompress objects twice with parse_object() It turns out that parse_object() is loading and decompressing given object to free it just before calling the specific object parsing function which does mmap and decompress the same object again. This patch introduces the ability to parse specific objects directly from a memory buffer. Without this patch, running git-fsck-cache on the kernel repositorytake: real 0m13.006s user 0m11.421s sys 0m1.218s With this patch applied: real 0m8.060s user 0m7.071s sys 0m0.710s The performance increase is significant, and this is kind of a prerequisite for sane delta object support with fsck. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago
Linus Torvalds	770896e548	Teach fsck-cache to accept non-commits for reachability analysis. In particular, teach it about tags. Also, to make reachability actually work for tags, we need to add the ref to the tagged object.	20 years ago
Sergey Vlasov	13019d4136	[PATCH] Fix memory leaks in git-fsck-cache This patch fixes memory leaks in parse_object() and related functions; these leaks were very noticeable when running git-fsck-cache. Signed-off-by: Sergey Vlasov <vsu@altlinux.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago
Edgar Toernig	ae200ee594	[PATCH] compat: replace AF_LOCAL with AF_UNIX There's no AF_LOCAL in POSIX	20 years ago
Daniel Barkalow	2636f61437	[PATCH] Add tag header/parser to library This adds preliminary support for tags in the library. It doesn't even store the signature, however, let alone provide any way of checking it. Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago

14 Commits (ae20de5386f74dbde991186694cfdac323b21e47)