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vfs: make no_llseek the default

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All file operations now have an explicit .llseek
operation pointer, so we can change the default
action for future code.

This makes changes the default from default_llseek
to no_llseek, which always returns -ESPIPE if
a user tries to seek on a file without a .llseek
operation.

The name of the default_llseek function remains
unchanged, if anyone thinks we should change it,
please speak up.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
This commit is contained in:
Arnd Bergmann 2010-07-07 23:10:11 +02:00
parent ab91261f5c
commit 776c163b1b
1 changed files with 0 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

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fs/read_write.c
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@ -156,7 +156,6 @@ loff_t vfs_llseek(struct file *file, loff_t offset, int origin)
fn = no_llseek; fn = no_llseek;
if (file->f_mode & FMODE_LSEEK) { if (file->f_mode & FMODE_LSEEK) {
fn = default_llseek;
if (file->f_op && file->f_op->llseek) if (file->f_op && file->f_op->llseek)
fn = file->f_op->llseek; fn = file->f_op->llseek;
} }