diff options
| author | Tom Gundersen <teg@jklm.no> | 2015-11-11 02:31:29 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2015-11-11 02:31:29 +0100 |
| commit | 7042fc14ff2bd30648aea6602c95d3cf6946e7be (patch) | |
| tree | 9990f79bfe80bb0b9c8c6da94f62d66d5c7da97e /src/basic/btrfs-util.c | |
| parent | 620b7793fcbb23f6d27d42b0374d3dddb256aa40 (diff) | |
| parent | be6d467c1f9219b2016d556a0a369828d463ca27 (diff) | |
Merge pull request #1837 from poettering/grabbag2
variety of fixes
Diffstat (limited to 'src/basic/btrfs-util.c')
| -rw-r--r-- | src/basic/btrfs-util.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/basic/btrfs-util.c b/src/basic/btrfs-util.c index 4c90bc0c80..290fabdeff 100644 --- a/src/basic/btrfs-util.c +++ b/src/basic/btrfs-util.c @@ -575,8 +575,12 @@ int btrfs_qgroup_get_quota_fd(int fd, uint64_t qgroupid, BtrfsQuotaInfo *ret) { unsigned i; args.key.nr_items = 256; - if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) + if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) { + if (errno == ENOENT) /* quota tree is missing: quota disabled */ + break; + return -errno; + } if (args.key.nr_items <= 0) break; @@ -1006,6 +1010,10 @@ static int qgroup_create_or_destroy(int fd, bool b, uint64_t qgroupid) { for (c = 0;; c++) { if (ioctl(fd, BTRFS_IOC_QGROUP_CREATE, &args) < 0) { + /* If quota is not enabled, we get EINVAL. Turn this into a recognizable error */ + if (errno == EINVAL) + return -ENOPROTOOPT; + if (errno == EBUSY && c < 10) { (void) btrfs_quota_scan_wait(fd); continue; @@ -1335,8 +1343,12 @@ int btrfs_qgroup_copy_limits(int fd, uint64_t old_qgroupid, uint64_t new_qgroupi unsigned i; args.key.nr_items = 256; - if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) + if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) { + if (errno == ENOENT) /* quota tree missing: quota is not enabled, hence nothing to copy */ + break; + return -errno; + } if (args.key.nr_items <= 0) break; @@ -1766,8 +1778,12 @@ int btrfs_qgroup_find_parents(int fd, uint64_t qgroupid, uint64_t **ret) { unsigned i; args.key.nr_items = 256; - if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) + if (ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args) < 0) { + if (errno == ENOENT) /* quota tree missing: quota is disabled */ + break; + return -errno; + } if (args.key.nr_items <= 0) break; |