static int find_vdso_map(void **start, void **end) { FILE *maps; char line[128]; int found = 0; maps = fopen("/proc/self/maps", "r"); if (!maps) { fprintf(stderr, "vdso: cannot open maps\n"); return -1; } while (!found && fgets(line, sizeof(line), maps)) { int m = -1; /* We care only about private r-x mappings. */ if (2 != sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n", start, end, &m)) continue; if (m < 0) continue; if (!strncmp(&line[m], VDSO__MAP_NAME, sizeof(VDSO__MAP_NAME) - 1)) found = 1; } fclose(maps); return !found; } r'> cgit logo index : net-next.git
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authorYehuda Sadeh <yehuda@hq.newdream.net>2010-04-06 15:14:15 -0700
committerSage Weil <sage@newdream.net>2010-10-20 15:37:28 -0700
commit3d14c5d2b6e15c21d8e5467dc62d33127c23a644 (patch)
tree7d123c47847df9d1e865b6b78dc7da3fe739b704
parentae1533b62b3369e6ae32338f4a77d64d0e88f676 (diff)
ceph: factor out libceph from Ceph file system
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
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