truncate() and ftruncate() return values are different from the
POSIX requirements and from the values returned by other Unices (and from
our own manpages, BTW). Trivial fix follows. Rationale: see truncate(2),
ftruncate(2), POSIX or try to call the thing on other Unices.
Please, apply.
diff -urN rc12-pre5/fs/open.c rc12-pre5-truncate/fs/open.c
--- rc12-pre5/fs/open.c Wed Nov 29 21:37:31 2000
+++ rc12-pre5-truncate/fs/open.c Tue Dec 5 14:53:59 2000
@@ -102,7 +102,12 @@
goto out;
inode = nd.dentry->d_inode;
- error = -EACCES;
+ /* For directories it's -EISDIR, for other non-regulars - -EINVAL */
+ error = -EISDIR;
+ if (S_ISDIR(inode->i_mode))
+ goto dput_and_out;
+
+ error = -EINVAL;
if (!S_ISREG(inode->i_mode))
goto dput_and_out;
@@ -163,7 +168,7 @@
goto out;
dentry = file->f_dentry;
inode = dentry->d_inode;
- error = -EACCES;
+ error = -EINVAL;
if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
goto out_putf;
error = -EPERM;
-
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