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| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-12-08 01:07:56 -0500 |
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| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-12-08 01:07:56 -0500 |
| commit | bef986502fa398b1785a3979b1aa17cd902d3527 (patch) | |
| tree | b59c1afe7b1dfcc001b86e54863f550d7ddc8c34 /Documentation/filesystems/udf.txt | |
| parent | 4bdbd2807deeccc0793d57fb5120d7a53f2c0b3c (diff) | |
| parent | c99767974ebd2a719d849fdeaaa1674456f5283f (diff) | |
| download | linux-next-bef986502fa398b1785a3979b1aa17cd902d3527.tar.gz | |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/usb/input/hid.h
Diffstat (limited to 'Documentation/filesystems/udf.txt')
| -rw-r--r-- | Documentation/filesystems/udf.txt | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/filesystems/udf.txt b/Documentation/filesystems/udf.txt index 511b4230c053..fde829a756e6 100644 --- a/Documentation/filesystems/udf.txt +++ b/Documentation/filesystems/udf.txt @@ -7,8 +7,17 @@ If you encounter problems with reading UDF discs using this driver, please report them to linux_udf@hpesjro.fc.hp.com, which is the developer's list. -Write support requires a block driver which supports writing. The current -scsi and ide cdrom drivers do not support writing. +Write support requires a block driver which supports writing. Currently +dvd+rw drives and media support true random sector writes, and so a udf +filesystem on such devices can be directly mounted read/write. CD-RW +media however, does not support this. Instead the media can be formatted +for packet mode using the utility cdrwtool, then the pktcdvd driver can +be bound to the underlying cd device to provide the required buffering +and read-modify-write cycles to allow the filesystem random sector writes +while providing the hardware with only full packet writes. While not +required for dvd+rw media, use of the pktcdvd driver often enhances +performance due to very poor read-modify-write support supplied internally +by drive firmware. ------------------------------------------------------------------------------- The following mount options are supported: |