Konstantin Belousov 8c2a54de80 Add kernel side support for BIO_DELETE/TRIM on UFS. ... The FS_TRIM fs flag indicates that administrator requested issuing of TRIM commands for the volume. UFS will only send the command to disk if the disk reports GEOM::candelete attribute. Since disk queue is reordered, data block is marked as free in the bitmap only after TRIM command completed. Due to need to sleep waiting for i/o to finish, TRIM bio_done routine schedules taskqueue to set the bitmap bit. Based on the patch by: mckusick Reviewed by: mckusick, pjd Tested by: pho MFC after: 1 month		2010-12-29 12:25:28 +00:00
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ffs	Add kernel side support for BIO_DELETE/TRIM on UFS.	2010-12-29 12:25:28 +00:00
ufs	Add kernel side support for BIO_DELETE/TRIM on UFS.	2010-12-29 12:25:28 +00:00