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zed: remove unused zed_file_read_n()
Same deal as zed_file_close_on_exec() Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #11834
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@ -24,35 +24,6 @@
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#include "zed_file.h"
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#include "zed_log.h"
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/*
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* Read up to [n] bytes from [fd] into [buf].
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* Return the number of bytes read, 0 on EOF, or -1 on error.
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*/
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ssize_t
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zed_file_read_n(int fd, void *buf, size_t n)
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{
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unsigned char *p;
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size_t n_left;
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ssize_t n_read;
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p = buf;
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n_left = n;
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while (n_left > 0) {
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if ((n_read = read(fd, p, n_left)) < 0) {
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if (errno == EINTR)
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continue;
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else
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return (-1);
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} else if (n_read == 0) {
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break;
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}
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n_left -= n_read;
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p += n_read;
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}
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return (n - n_left);
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}
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/*
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* Write [n] bytes from [buf] out to [fd].
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* Return the number of bytes written, or -1 on error.
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@ -18,8 +18,6 @@
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#include <sys/types.h>
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#include <unistd.h>
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ssize_t zed_file_read_n(int fd, void *buf, size_t n);
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ssize_t zed_file_write_n(int fd, void *buf, size_t n);
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int zed_file_lock(int fd);
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