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btrfs-progs: Remove fprintf() in find_mount_root().

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find_mount_root() function in utils.c should not print error string.
Caller should be responsible to print error string.

This patch will remove the only fprintf in find_mount_root() and modify
the caller a little to use strerror() to prompt users.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Qu Wenruo 2014-07-23 13:47:34 +08:00 committed by David Sterba
parent b2d0e10d49
commit 10c8f34f51
3 changed files with 7 additions and 9 deletions
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5
cmds-receive.c
View File

@ -842,9 +842,10 @@ static int do_receive(struct btrfs_receive *r, const char *tomnt, int r_fd,
ret = find_mount_root(dest_dir_full_path, &r->root_path); ret = find_mount_root(dest_dir_full_path, &r->root_path);
if (ret < 0) { if (ret < 0) {
fprintf(stderr,
"ERROR: failed to determine mount point for %s: %s\n",
dest_dir_full_path, strerror(-ret));
ret = -EINVAL; ret = -EINVAL;
fprintf(stderr, "ERROR: failed to determine mount point "
"for %s\n", dest_dir_full_path);
goto out; goto out;
} }
r->mnt_fd = open(r->root_path, O_RDONLY | O_NOATIME); r->mnt_fd = open(r->root_path, O_RDONLY | O_NOATIME);

5
cmds-send.c
View File

@ -349,9 +349,10 @@ static int init_root_path(struct btrfs_send *s, const char *subvol)
ret = find_mount_root(subvol, &s->root_path); ret = find_mount_root(subvol, &s->root_path);
if (ret < 0) { if (ret < 0) {
fprintf(stderr,
"ERROR: failed to determine mount point for %s: %s\n",
subvol, strerror(-ret));
ret = -EINVAL; ret = -EINVAL;
fprintf(stderr, "ERROR: failed to determine mount point "
"for %s\n", subvol);
goto out; goto out;
} }

6
utils.c
View File

@ -2356,12 +2356,8 @@ int find_mount_root(const char *path, char **mount_root)
} }
endmntent(mnttab); endmntent(mnttab);
if (!longest_match) { if (!longest_match)
fprintf(stderr,
"ERROR: Failed to find mount root for path %s.\n",
path);
return -ENOENT; return -ENOENT;
}
ret = 0; ret = 0;
*mount_root = realpath(longest_match, NULL); *mount_root = realpath(longest_match, NULL);