nothing much

comment fixes

Remove left-over print statements

Move retry loop/sleep/wakeup in bio.c into sleeping locks

Straight replacement of B_BUSY with a sleeping lock.

Remove trailing white space with:
for f in *.{h,c}; do sed -i .sed 's/[[:blank:]]*$//' $f; done
(Thanks to Nicolás Wolovick)

Disentangle block size from the disk's sector size. Set block size to 1024 to show
that they can be different. Clean up mkfs, simplifying specifying fs parameters,
remove some redundancy between fs

Disentangle block size from the disk's sector size. Set block size to 1024 to show
that they can be different. Clean up mkfs, simplifying specifying fs parameters,
remove some redundancy between fs and mkfs, and fix disk layout bugs. Call blocks
in the file system blocks instead of sectors. Passes usertests for different
block sizes.

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Nice layout for a printout of the code

i think this is a working concurrent logging scheme

comments

don't let dirty blocks be evicted from cache!

clarify some FS comments

Revert "Introduce and use sleeplocks instead of BUSY flags"
My changes have a race with re-used bufs and the code doesn't seem to get shorter
Keep the changes that fixed ip->off race

This reverts co

Revert "Introduce and use sleeplocks instead of BUSY flags"
My changes have a race with re-used bufs and the code doesn't seem to get shorter
Keep the changes that fixed ip->off race

This reverts commit 3a5fa7ed9020eaf8ab843a16d26db7393b2ec072.

Conflicts:

defs.h
file.c
file.h

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Introduce and use sleeplocks instead of BUSY flags
Remove I_BUSY, B_BUSY, and intrans defs and usages
One spinlock per buf to avoid ugly loop in bget
fix race in filewrite (don't update f->off after

Introduce and use sleeplocks instead of BUSY flags
Remove I_BUSY, B_BUSY, and intrans defs and usages
One spinlock per buf to avoid ugly loop in bget
fix race in filewrite (don't update f->off after releasing lock)

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a few nits
passes all tests on two-processor smp

8ae0 instead of 8e00, thanks yandong

group locks into structs they protect.
few naming nits.

bio.c: use struct like icache does

slight rearrangement; sleep on b not buf.

be consistent: no underscores in function names

formatting

delete unnecessary #include lines

Another attempt at the bio.c comment.

Rename B_WRITE to B_DIRTY and then let ide.c
maintain the B_VALID and B_DIRTY flags.

nits

nits