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Commit Graph

Author	SHA1	Message	Date
Axel Dörfler	547cd462f8	trim: Added is_called_via_syscall() function. * And use it in get_trim_data_from_user(), formerly known as copy_(). This fixes differentiating between user and kernel buffers.	2013-11-07 19:06:13 +01:00
Axel Dörfler	99086aa323	trim: Target SCSI UNMAP command instead of WRITE SAME. * The UNMAP command is theoretically much faster, as it can get many block ranges instead of just a single range. * Furthermore, the ATA TRIM command resembles it much better. * Therefore, fs_trim_data now gets an array of ranges, and we use SCSI UNMAP to trim. * Updated BFS code to collect array ranges to fully support the new fs_trim_data possibilities.	2013-11-07 19:03:47 +01:00

Author

SHA1

Message

Date

Axel Dörfler

547cd462f8

trim: Added is_called_via_syscall() function.

* And use it in get_trim_data_from_user(), formerly known as copy_*().
* This fixes differentiating between user and kernel buffers.

2013-11-07 19:06:13 +01:00

Axel Dörfler

99086aa323

trim: Target SCSI UNMAP command instead of WRITE SAME.

* The UNMAP command is theoretically much faster, as it can get many block
  ranges instead of just a single range.
* Furthermore, the ATA TRIM command resembles it much better.
* Therefore, fs_trim_data now gets an array of ranges, and we use SCSI UNMAP
  to trim.
* Updated BFS code to collect array ranges to fully support the new
  fs_trim_data possibilities.

2013-11-07 19:03:47 +01:00

2 Commits