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->splice_write() via ->write_iter()

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iter_file_splice_write() - a ->splice_write() instance that gathers the
pipe buffers, builds a bio_vec-based iov_iter covering those and feeds
it to ->write_iter().  A bunch of simple cases coverted to that...

[AV: fixed the braino spotted by Cyrill]

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2014-04-05 04:27:08 -04:00
commit 8d0207652c
16 changed files with 156 additions and 56 deletions
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2
fs/ext2/file.c
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@ -75,7 +75,7 @@ const struct file_operations ext2_file_operations = {
.release = ext2_release_file,
.fsync = ext2_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.splice_write = iter_file_splice_write,
};
#ifdef CONFIG_EXT2_FS_XIP