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proc "single files": switch to ->read_iter 

Implement ->read_iter for all proc "single files" so that more bionic
tests cases can pass when they call splice() on other fun files like
/proc/version

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Kroah-Hartman 2020-11-04 09:27:37 +01:00 committed by Linus Torvalds
parent 28589f9e0f
commit 7cfc630e63
1 changed files with 1 additions and 1 deletions
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2
fs/proc/generic.c
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@ -621,7 +621,7 @@ static int proc_single_open(struct inode *inode, struct file *file)
static const struct proc_ops proc_single_ops = { static const struct proc_ops proc_single_ops = {
/* not permanent -- can call into arbitrary ->single_show */ /* not permanent -- can call into arbitrary ->single_show */
.proc_open = proc_single_open, .proc_open = proc_single_open,
.proc_read = seq_read, .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek, .proc_lseek = seq_lseek,
.proc_release = single_release, .proc_release = single_release,
}; };