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From 64de3526cce9ef980b37fcb5c412a2734132ad47 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Mon, 11 Nov 2013 23:32:31 -0500
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Subject: [PATCH] fsck: modernization
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(cherry picked from commit e375825da0cbdbf3be755c277f9c0dec35b41a09)
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Related: #1098310
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---
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src/fsck/fsck.c | 43 ++++++++++++++++++-------------------------
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1 file changed, 18 insertions(+), 25 deletions(-)
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diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
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index 96a79dd..9b4e555 100644
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--- a/src/fsck/fsck.c
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+++ b/src/fsck/fsck.c
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@@ -176,7 +176,7 @@ static double percent(int pass, unsigned long cur, unsigned long max) {
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}
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static int process_progress(int fd) {
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- FILE *f, *console;
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+ _cleanup_fclose_ FILE *console = NULL, *f = NULL;
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usec_t last = 0;
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bool locked = false;
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int clear = 0;
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@@ -188,15 +188,13 @@ static int process_progress(int fd) {
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}
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console = fopen("/dev/console", "w");
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- if (!console) {
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- fclose(f);
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+ if (!console)
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return -ENOMEM;
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- }
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while (!feof(f)) {
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int pass, m;
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unsigned long cur, max;
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- char *device;
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+ _cleanup_free_ char *device = NULL;
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double p;
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usec_t t;
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@@ -205,20 +203,16 @@ static int process_progress(int fd) {
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/* Only show one progress counter at max */
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if (!locked) {
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- if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0) {
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- free(device);
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+ if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
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continue;
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- }
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locked = true;
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}
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/* Only update once every 50ms */
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t = now(CLOCK_MONOTONIC);
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- if (last + 50 * USEC_PER_MSEC > t) {
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- free(device);
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+ if (last + 50 * USEC_PER_MSEC > t)
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continue;
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- }
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last = t;
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@@ -226,8 +220,6 @@ static int process_progress(int fd) {
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fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
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fflush(console);
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- free(device);
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-
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if (m > clear)
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clear = m;
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}
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@@ -242,8 +234,6 @@ static int process_progress(int fd) {
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fflush(console);
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}
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- fclose(f);
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- fclose(console);
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return 0;
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}
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@@ -287,34 +277,37 @@ int main(int argc, char *argv[]) {
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if (stat("/", &st) < 0) {
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log_error("Failed to stat() the root directory: %m");
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- goto finish;
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+ return EXIT_FAILURE;
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}
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/* Virtual root devices don't need an fsck */
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if (major(st.st_dev) == 0)
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- return 0;
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+ return EXIT_SUCCESS;
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/* check if we are already writable */
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times[0] = st.st_atim;
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times[1] = st.st_mtim;
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if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
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log_info("Root directory is writable, skipping check.");
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- return 0;
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+ return EXIT_SUCCESS;
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}
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- if (!(udev = udev_new())) {
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+ udev = udev_new();
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+ if (!udev) {
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log_oom();
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- goto finish;
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+ return EXIT_FAILURE;
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}
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- if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev))) {
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+ udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
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+ if (!udev_device) {
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log_error("Failed to detect root device.");
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- goto finish;
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+ return EXIT_FAILURE;
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}
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- if (!(device = udev_device_get_devnode(udev_device))) {
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+ device = udev_device_get_devnode(udev_device);
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+ if (!device) {
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log_error("Failed to detect device node of root directory.");
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- goto finish;
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+ return EXIT_FAILURE;
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}
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root_directory = true;
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@@ -323,7 +316,7 @@ int main(int argc, char *argv[]) {
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if (arg_show_progress)
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if (pipe(progress_pipe) < 0) {
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log_error("pipe(): %m");
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- goto finish;
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+ return EXIT_FAILURE;
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}
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cmdline[i++] = "/sbin/fsck";
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