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| author | Latchesar Ionkov <lucho@ionkov.net> | 2006-01-08 01:05:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:14:06 -0800 |
| commit | 531b1094b74365dcc55fa464d28a9a2497ae825d (patch) | |
| tree | a0384dabe3be1c844166d028b3ef7c21c3dfe5fc /fs/9p/error.c | |
| parent | d8da097afb765654c866062148fd98b11db9003e (diff) | |
| download | kernel_samsung_espresso10-531b1094b74365dcc55fa464d28a9a2497ae825d.zip kernel_samsung_espresso10-531b1094b74365dcc55fa464d28a9a2497ae825d.tar.gz kernel_samsung_espresso10-531b1094b74365dcc55fa464d28a9a2497ae825d.tar.bz2 | |
[PATCH] v9fs: zero copy implementation
Performance enhancement reducing the number of copies in the data and
stat paths.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/9p/error.c')
| -rw-r--r-- | fs/9p/error.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/9p/error.c b/fs/9p/error.c index 834cb17..e4b6f8f 100644 --- a/fs/9p/error.c +++ b/fs/9p/error.c @@ -33,7 +33,6 @@ #include <linux/list.h> #include <linux/jhash.h> -#include <linux/string.h> #include "debug.h" #include "error.h" @@ -55,7 +54,8 @@ int v9fs_error_init(void) /* load initial error map into hash table */ for (c = errmap; c->name != NULL; c++) { - bucket = jhash(c->name, strlen(c->name), 0) % ERRHASHSZ; + c->namelen = strlen(c->name); + bucket = jhash(c->name, c->namelen, 0) % ERRHASHSZ; INIT_HLIST_NODE(&c->list); hlist_add_head(&c->list, &hash_errmap[bucket]); } @@ -69,15 +69,15 @@ int v9fs_error_init(void) * */ -int v9fs_errstr2errno(char *errstr) +int v9fs_errstr2errno(char *errstr, int len) { int errno = 0; struct hlist_node *p = NULL; struct errormap *c = NULL; - int bucket = jhash(errstr, strlen(errstr), 0) % ERRHASHSZ; + int bucket = jhash(errstr, len, 0) % ERRHASHSZ; hlist_for_each_entry(c, p, &hash_errmap[bucket], list) { - if (!strcmp(c->name, errstr)) { + if (c->namelen==len && !memcmp(c->name, errstr, len)) { errno = c->val; break; } |