src/sys/gnu/ext2fs/ext2_balloc.c, branch main

Move ext2fs from src/gnu to src/gnu/fs.

2005-06-15T16:43:07Z

Discussed on arch@. Reviewed by: kan Approved by: re (blanket), kan Discussed with: dumbbell

/* -> /*- for copyright notices, minor format tweaks as necessary

2005-01-06T18:27:30Z

Remove advertising clause from University of California Regent's

2004-04-07T20:46:16Z

license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson

- Add a new 'flags' parameter to getblk().

2003-03-04T00:04:44Z

- Define one flag GB_LOCK_NOWAIT that tells getblk() to pass the LK_NOWAIT flag to the initial BUF_LOCK(). This will eventually be used in cases were we want to use a buffer only if it is not currently in use. - Convert all consumers of the getblk() api to use this extra parameter. Reviwed by: arch Not objected to by: mckusick

Use explicitly-sized types where necessary to make ext2fs work again

2002-05-18T19:12:38Z

after the change to a 64-bit daddr_t.

Remove register keyword.

2002-05-16T19:43:28Z

Complete the separation of ext2fs from ufs by copying the remaining

2002-05-16T19:08:03Z

shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.

Make a panic less misleading.

2001-04-29T11:45:15Z

MFffs ffs_balloc.c 1.5.

2001-04-25T10:33:09Z

Long ago, bread() set b_blkno to the disk block number as a side effect of doing physical i/o (or it just retained the setting from when the i/o was done). The setting is lost when buffers go away and then are reconsituted from VM. bread() originally compensated by doing a VOP_BMAP() to recover b_blkno, but this was no good since it sometimes caused extra i/o or even deadlock for bread()ing metadata to do the bmap. This was fixed in vfs_bio.c 1.33 (1995/03/03) and ffs_balloc.c 1.5, etc., by removing the VOP_BMAP() from bread() and breadn(), and changing all (?) places that used b_blkno to set it if necessary. ext2fs was not imported until later in 1995 and was still depending on the old behaviour of bread() in at least ext2_balloc(). This caused filesystem and file corruption by clobbering direct block numbers in inodes.

Backed out previous commit. Don't depend on namespace pollution in

2000-12-02T12:03:58Z