Don Lewis d07f87a218 Add a new struct buf flag bit, B_PERSISTENT, and use it to tag ... struct bufs that are persistently held by ext2fs. Ignore any buffers with this flag in the code in boot() that counts "busy" and dirty buffers and attempts to sync the dirty buffers, which is done before attempting to unmount all the file systems during shutdown. This fixes the problem caused by any ext2fs file systems that are mounted at system shutdown time, which caused boot() to give up on a non-zero number of buffers and skip the call to vfs_unmountall(). This left all the mounted file systems in a dirty state and caused them to all require cleanup by fsck on reboot. Move the two separate copies of the "busy" buffer test in boot() to a separate function. Nuke the useless spl() stuff in the ext2fs ULCK_BUF() macro. Bring the PRINT_BUF_FLAGS definition in sys/buf.h up to date with this and previous flag changes. PR: kern/56675, kern/85163 Tested by: "Matthias Andree" matthias.andree at gmx.de Reviewed by: bde MFC after: 3 days		2005-09-08 06:30:05 +00:00
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ext2fs	Add a new struct buf flag bit, B_PERSISTENT, and use it to tag	2005-09-08 06:30:05 +00:00
reiserfs	Unbreak hpfs/ntfs/udf/ext2fs/reiserfs mounting.	2005-09-03 20:23:41 +00:00