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implement generic_file_buffered_write()

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This function is removed in el8 therefore we need to implement
it ourselves now. Copy it.

Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Auke Kok
2023-10-09 15:35:40 -04:00
parent e88845d185
commit 65be4682e3
3 changed files with 40 additions and 0 deletions
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kmod/src/kernelcompat.c
+24
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@@ -1,4 +1,6 @@
#include <linux/uio.h>
#include "kernelcompat.h"
#ifdef KC_SHRINKER_SHRINK
@@ -58,3 +60,25 @@ struct timespec64 kc_current_time(struct inode *inode)
return now;
}
#endif
#ifndef KC_GENERIC_FILE_BUFFERED_WRITE
ssize_t
kc_generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos, loff_t *ppos,
size_t count, ssize_t written)
{
struct file *file = iocb->ki_filp;
ssize_t status;
struct iov_iter i;
iov_iter_init(&i, WRITE, iov, nr_segs, count);
status = generic_perform_write(file, &i, pos);
if (likely(status >= 0)) {
written += status;
*ppos = pos + status;
}
return written ? written : status;
}
#endif