Kirk McKusick 776816d32b Speed up fsck by caching the cylinder group maps in pass1 so ... that they do not need to be read again in pass5. As this nearly doubles the memory requirement for fsck, the cache is thrown away if other memory needs in fsck would otherwise fail. Thus, the memory footprint of fsck remains unchanged in memory constrained environments. This work was inspired by a paper presented at Usenix's FAST '13: www.usenix.org/conference/fast13/ffsck-fast-file-system-checker Details of this implementation appears in the April 2013 of ;login: www.usenix.org/publications/login/april-2013-volume-38-number-2. A copy of the April 2013 ;login: paper can also be downloaded from: www.mckusick.com/publications/faster_fsck.pdf. Reviewed by: kib Tested by: Peter Holm MFC after: 4 weeks		2013-03-22 21:50:43 +00:00
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dir.c	When running with the -d option, instrument fsck_ffs to track the number,	2013-02-24 06:44:29 +00:00
ea.c	When running with the -d option, instrument fsck_ffs to track the number,	2013-02-24 06:44:29 +00:00
fsck_ffs.8
fsck.h	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
fsutil.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
gjournal.c	Fix fsck_ffs build with a 64-bit ino_t.	2012-09-27 23:30:58 +00:00
inode.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
main.c	When running with the -d option, instrument fsck_ffs to track the number,	2013-02-24 06:44:29 +00:00
Makefile
pass1.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
pass1b.c
pass2.c	Fix fsck_ffs build with a 64-bit ino_t.	2012-09-27 23:30:58 +00:00
pass3.c
pass4.c	Fix fsck_ffs build with a 64-bit ino_t.	2012-09-27 23:30:58 +00:00
pass5.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
setup.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
suj.c	Speed up fsck by caching the cylinder group maps in pass1 so	2013-03-22 21:50:43 +00:00
utilities.c