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isofs: support full length file names (255 instead of 253)

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Linux file names are in principle limited only to PATH_MAX (which is
4096) but the code in get_rock_ridge_filename() limits them to 253
characters.

As mentioned by Jan Kara, the Rockridge standard to ECMA119/ISO9660 has
no limit of file name length, but this limits file names to the
traditional 255 NAME_MAX value.

Signed-off-by: Shawn Landden <slandden@gmail.com>
Link: https://patch.msgid.link/CA+49okq0ouJvAx0=txR_gyNKtZj55p3Zw4MB8jXZsGr4bEGjRA@mail.gmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Shawn Landden 2026-01-27 09:05:52 -08:00 • committed by Jan Kara
parent 77449e453d
commit 18a777eee2
1 changed files with 1 additions and 1 deletions
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2
fs/isofs/rock.c
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@ -271,7 +271,7 @@ repeat:
break;
}
len = rr->len - 5;
if (retnamlen + len >= 254) {
if (retnamlen + len > NAME_MAX) {
truncate = 1;
break;
}