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reduce device path error messsages

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When /dev entries or sysfs entries are changing
due to concurrent lvm commands, it can cause
warning/error messages about missing paths.
This commit is contained in:
David Teigland 2020-03-12 10:18:51 -05:00
parent fbdcc45255
commit 957904933b
3 changed files with 13 additions and 6 deletions
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9
lib/device/dev-cache.c
View File

@ -357,12 +357,14 @@ static int _get_sysfs_value(const char *path, char *buf, size_t buf_size, int er
int r = 0;
if (!(fp = fopen(path, "r"))) {
log_sys_error("fopen", path);
if (error_if_no_value)
log_sys_error("fopen", path);
return 0;
}
if (!fgets(buf, buf_size, fp)) {
log_sys_error("fgets", path);
if (error_if_no_value)
log_sys_error("fgets", path);
goto out;
}
@ -1460,6 +1462,7 @@ struct device *dev_cache_get(struct cmd_context *cmd, const char *name, struct d
_insert(name, info_available ? &buf : NULL, 0, obtain_device_list_from_udev());
d = (struct device *) dm_hash_lookup(_cache.names, name);
if (!d) {
log_debug_devs("Device name not found in dev_cache repeat dev_cache_scan for %s", name);
dev_cache_scan();
d = (struct device *) dm_hash_lookup(_cache.names, name);
}
@ -1535,6 +1538,8 @@ struct device *dev_cache_get_by_devt(struct cmd_context *cmd, dev_t dev, struct
}
}
log_debug_devs("Device num not found in dev_cache repeat dev_cache_scan for %d:%d",
(int)MAJOR(dev), (int)MINOR(dev));
dev_cache_scan();
d = _dev_cache_seek_devt(dev);
}

8
lib/device/dev-io.c
View File

@ -94,7 +94,7 @@ static int _dev_get_size_dev(struct device *dev, uint64_t *size)
}
if (fd <= 0) {
if (!dev_open_readonly(dev))
if (!dev_open_readonly_quiet(dev))
return_0;
fd = dev_fd(dev);
do_close = 1;
@ -128,8 +128,10 @@ static int _dev_read_ahead_dev(struct device *dev, uint32_t *read_ahead)
return 1;
}
if (!dev_open_readonly(dev))
if (!dev_open_readonly_quiet(dev)) {
log_error("Failed to open to get readahead %s", dev_name(dev));
return_0;
}
if (ioctl(dev->fd, BLKRAGET, &read_ahead_long) < 0) {
log_sys_error("ioctl BLKRAGET", dev_name(dev));
@ -194,7 +196,7 @@ int dev_get_direct_block_sizes(struct device *dev, unsigned int *physical_block_
}
if (fd <= 0) {
if (!dev_open_readonly(dev))
if (!dev_open_readonly_quiet(dev))
return 0;
fd = dev_fd(dev);
do_close = 1;

2
lib/device/dev-type.c
View File

@ -86,7 +86,7 @@ int dev_is_lv(struct device *dev)
return 0;
if (!fgets(buffer, sizeof(buffer), fp))
log_warn("Failed to read %s.", path);
log_debug("Failed to read %s.", path);
else if (!strncmp(buffer, "LVM-", 4))
ret = 1;