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Major performance boost to directory listings and non-cached file openings.

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This commit is contained in:
nvt-se 2008-07-04 02:54:30 +00:00
parent 62b7ef5173
commit 671f5c6393
1 changed files with 8 additions and 2 deletions
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10
core/cfs/cfs-coffee.c
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@ -248,7 +248,10 @@ find_file(const char *name)
} else if(COFFEE_PAGE_OBSOLETE(hdr)) {
page += hdr.max_pages;
} else {
page++;
/* It follows from the properties of the page allocation algorithm
that if a free page is encountered, the rest of the sector is
also free. */
page = (page + COFFEE_PAGES_PER_SECTOR) & ~(COFFEE_PAGES_PER_SECTOR - 1);
}
watchdog_periodic();
} while(page < COFFEE_PAGE_COUNT);
@ -906,8 +909,11 @@ cfs_readdir(struct cfs_dir *dir, struct cfs_dirent *entry)
page += hdr.max_pages;
*(uint16_t *)dir->dummy_space = page;
return 0;
} else if (COFFEE_PAGE_FREE(hdr)) {
page = (page + COFFEE_PAGES_PER_SECTOR) & ~(COFFEE_PAGES_PER_SECTOR - 1);
} else {
page += hdr.max_pages;
}
page += COFFEE_PAGE_OBSOLETE(hdr) ? hdr.max_pages : 1;
}
return -1;