fix various comments

allow long names again

clean namei search loop

comments

remove _ prefixes

wrap long lines

for vs while

break single-line if statements

no /* */ comments

standardize various * conventions

spacing fixes: no tabs, 2-space indents (for rtm)

complain if no disk 1
lots of cleanup

clear killed flag in exit
idecref cwd in exit

consistently ignore more than 14 chars in path component
forbid create or write of existing directory
mkdir("d1/d2/d3"), .. should refer to d2, not cwd
mkdir increase parent link count

inode addrs[NDIRECT] -> NADDRS
fix race in mknod / creat
use last component in dirent in mknod, not path

big directory test

fix bugs in indirect-file code
clean up test program

user-level malloc (untested)
nit in sbrk
indirect block
fix dup to share fd struct

chdir
cd in shell
nits in mkdir, ls, etc.

commented out code for cwd

set size for directories correctly in wdir and mkfs
mkdir
ls shows stat info for each dir entry

wdir now uses readi/writei

fix iget() bug that allocated in-use inode[] entries

namei returns locked parent dir inode for create / unlink
don't hold fd table lock across idecref() (latter does block i/o)
idecref calls iput() in case last ref -> freeing inode
dir size is 512 * #

namei returns locked parent dir inode for create / unlink
don't hold fd table lock across idecref() (latter does block i/o)
idecref calls iput() in case last ref -> freeing inode
dir size is 512 * # blocks, so readi/writei &c work
unlink deletes dirent even if ip->nlink > 0

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zero freed blocks
multi-block directories
track size of directory (size = number entries in use)
should namei (and other code that scans through directories) scan through all blocks of a directory an

zero freed blocks
multi-block directories
track size of directory (size = number entries in use)
should namei (and other code that scans through directories) scan through all blocks of a directory and not use size?

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