X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Freadahead%2Freadahead-collect.c;h=75ec5b70c72ab0435dee6430962a8605747c18ad;hb=bdd29249a882e599e5e365536372d08dee398cd4;hp=e2fd8dfd05f2dfd17c60a77e5520fca47cb41097;hpb=b0640287f784a320661f7206c9ade07b99003fd5;p=elogind.git

diff --git a/src/readahead/readahead-collect.c b/src/readahead/readahead-collect.c
index e2fd8dfd0..75ec5b70c 100644
--- a/src/readahead/readahead-collect.c
+++ b/src/readahead/readahead-collect.c
@@ -75,10 +75,7 @@ static usec_t starttime;
 #define PTR_TO_SECTOR(p) (PTR_TO_ULONG(p)-1)
 
 static int btrfs_defrag(int fd) {
-        struct btrfs_ioctl_vol_args data;
-
-        zero(data);
-        data.fd = fd;
+        struct btrfs_ioctl_vol_args data = { .fd = fd };
 
         return ioctl(fd, BTRFS_IOC_DEFRAG, &data);
 }
@@ -186,11 +183,10 @@ static unsigned long fd_first_block(int fd) {
         struct {
                 struct fiemap fiemap;
                 struct fiemap_extent extent;
-        } data;
-
-        zero(data);
-        data.fiemap.fm_length = ~0ULL;
-        data.fiemap.fm_extent_count = 1;
+        } data = {
+                .fiemap.fm_length = ~0ULL,
+                .fiemap.fm_extent_count = 1,
+        };
 
         if (ioctl(fd, FS_IOC_FIEMAP, &data) < 0)
                 return 0;
@@ -238,7 +234,7 @@ static int collect(const char *root) {
                 FD_INOTIFY,   /* We get notifications to quit early via this fd */
                 _FD_MAX
         };
-        struct pollfd pollfd[_FD_MAX];
+        struct pollfd pollfd[_FD_MAX] = {};
         int fanotify_fd = -1, signal_fd = -1, inotify_fd = -1, r = 0;
         pid_t my_pid;
         Hashmap *files = NULL;
@@ -284,13 +280,15 @@ static int collect(const char *root) {
                 goto finish;
         }
 
-        if (!(files = hashmap_new(string_hash_func, string_compare_func))) {
+        files = hashmap_new(string_hash_func, string_compare_func);
+        if (!files) {
                 log_error("Failed to allocate set.");
                 r = -ENOMEM;
                 goto finish;
         }
 
-        if ((fanotify_fd = fanotify_init(FAN_CLOEXEC|FAN_NONBLOCK, O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_NOATIME)) < 0)  {
+        fanotify_fd = fanotify_init(FAN_CLOEXEC|FAN_NONBLOCK, O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_NOATIME);
+        if (fanotify_fd < 0)  {
                 log_error("Failed to create fanotify object: %m");
                 r = -errno;
                 goto finish;
@@ -302,7 +300,8 @@ static int collect(const char *root) {
                 goto finish;
         }
 
-        if ((inotify_fd = open_inotify()) < 0) {
+        inotify_fd = open_inotify();
+        if (inotify_fd < 0) {
                 r = inotify_fd;
                 goto finish;
         }
@@ -311,7 +310,6 @@ static int collect(const char *root) {
 
         my_pid = getpid();
 
-        zero(pollfd);
         pollfd[FD_FANOTIFY].fd = fanotify_fd;
         pollfd[FD_FANOTIFY].events = POLLIN;
         pollfd[FD_SIGNAL].fd = signal_fd;
@@ -507,7 +505,7 @@ done:
         on_ssd = fs_on_ssd(root) > 0;
         log_debug("On SSD: %s", yes_no(on_ssd));
 
-        on_btrfs = statfs(root, &sfs) >= 0 && (long) sfs.f_type == (long) BTRFS_SUPER_MAGIC;
+        on_btrfs = statfs(root, &sfs) >= 0 && F_TYPE_CMP(sfs.f_type, BTRFS_SUPER_MAGIC);
         log_debug("On btrfs: %s", yes_no(on_btrfs));
 
         if (asprintf(&pack_fn_new, "%s/.readahead.new", root) < 0) {