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-rw-r--r--fs/ceph/ceph_fs.c72
1 files changed, 0 insertions, 72 deletions
diff --git a/fs/ceph/ceph_fs.c b/fs/ceph/ceph_fs.c
deleted file mode 100644
index 3ac6cc7c1156..000000000000
--- a/fs/ceph/ceph_fs.c
+++ /dev/null
@@ -1,72 +0,0 @@
1/*
2 * Some non-inline ceph helpers
3 */
4#include "types.h"
5
6/*
7 * return true if @layout appears to be valid
8 */
9int ceph_file_layout_is_valid(const struct ceph_file_layout *layout)
10{
11 __u32 su = le32_to_cpu(layout->fl_stripe_unit);
12 __u32 sc = le32_to_cpu(layout->fl_stripe_count);
13 __u32 os = le32_to_cpu(layout->fl_object_size);
14
15 /* stripe unit, object size must be non-zero, 64k increment */
16 if (!su || (su & (CEPH_MIN_STRIPE_UNIT-1)))
17 return 0;
18 if (!os || (os & (CEPH_MIN_STRIPE_UNIT-1)))
19 return 0;
20 /* object size must be a multiple of stripe unit */
21 if (os < su || os % su)
22 return 0;
23 /* stripe count must be non-zero */
24 if (!sc)
25 return 0;
26 return 1;
27}
28
29
30int ceph_flags_to_mode(int flags)
31{
32 int mode;
33
34#ifdef O_DIRECTORY /* fixme */
35 if ((flags & O_DIRECTORY) == O_DIRECTORY)
36 return CEPH_FILE_MODE_PIN;
37#endif
38 if ((flags & O_APPEND) == O_APPEND)
39 flags |= O_WRONLY;
40
41 if ((flags & O_ACCMODE) == O_RDWR)
42 mode = CEPH_FILE_MODE_RDWR;
43 else if ((flags & O_ACCMODE) == O_WRONLY)
44 mode = CEPH_FILE_MODE_WR;
45 else
46 mode = CEPH_FILE_MODE_RD;
47
48#ifdef O_LAZY
49 if (flags & O_LAZY)
50 mode |= CEPH_FILE_MODE_LAZY;
51#endif
52
53 return mode;
54}
55
56int ceph_caps_for_mode(int mode)
57{
58 int caps = CEPH_CAP_PIN;
59
60 if (mode & CEPH_FILE_MODE_RD)
61 caps |= CEPH_CAP_FILE_SHARED |
62 CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE;
63 if (mode & CEPH_FILE_MODE_WR)
64 caps |= CEPH_CAP_FILE_EXCL |
65 CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER |
66 CEPH_CAP_AUTH_SHARED | CEPH_CAP_AUTH_EXCL |
67 CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL;
68 if (mode & CEPH_FILE_MODE_LAZY)
69 caps |= CEPH_CAP_FILE_LAZYIO;
70
71 return caps;
72}