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| author | Takashi Iwai <tiwai@suse.de> | 2013-02-22 09:53:42 -0800 |
|---|---|---|
| committer | Joern Engel <joern@logfs.org> | 2013-02-22 09:54:55 -0800 |
| commit | 7590cf02bbf196546f8557f05573c79f4ffddeee (patch) | |
| tree | a50c4a667c8cb13d9955c6432ea9ca6a7a4837ee | |
| parent | c8868d005330bb9b9ccdb6a2cae265fc0109405a (diff) | |
| download | bcon2-7590cf02bbf196546f8557f05573c79f4ffddeee.tar.gz | |
blockconsole: Allow to pass a device file path to bcon_tail
... instead of always looking through all devices.
Minor tweak: Moved the "CANDIDATES=" line below Takashi's new code.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Joern Engel <joern@logfs.org>
| -rwxr-xr-x | Documentation/block/blockconsole/bcon_tail | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/block/blockconsole/bcon_tail b/Documentation/block/blockconsole/bcon_tail index eb3524be7dc3d2..70926c6eeaea6d 100755 --- a/Documentation/block/blockconsole/bcon_tail +++ b/Documentation/block/blockconsole/bcon_tail @@ -58,6 +58,21 @@ end_of_log() { # HEADER contains a newline, so the funny quoting is necessary HEADER=' Linux blockconsole version 1.1' + +DEV="$1" +if [ -n "$DEV" ]; then + if [ ! -b "$DEV" ]; then + echo "bcon_tail: No block device file $DEV" + exit 1 + fi + if [ "`head -c32 $DEV`" != "$HEADER" ]; then + echo "bcon_tail: Invalid device file $DEV" + exit 1 + fi + end_of_log $DEV + exit 0 +fi + CANDIDATES=`lsscsi |sed 's|.*/dev|/dev|'` for DEV in $CANDIDATES; do |