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A new cap_id is issued each time an MDS creates a new capability, and is checked when releasing a capability to ensure it is the same capability instance. This specifically avoids a race like: 1- mds issues cap 2- mds sends cap message 3- mds and client time out cap 4- client receives cap message, sends release 5- mds reissues cap on same inode 6- mds receives release, doesn't realize the release is for the old capability Checking seq numbers isn't enough because the MDS may reissue the cap any number of times between 3 and 6. |
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| .. | ||
| assert.h | ||
| atomic.h | ||
| bitmapper.h | ||
| blobhash.h | ||
| buffer.h | ||
| byteorder.h | ||
| ceph_fs.h | ||
| Context.h | ||
| crc32c.h | ||
| cstring.h | ||
| Distribution.h | ||
| encoding.h | ||
| err.h | ||
| error.h | ||
| filepath.h | ||
| frag.h | ||
| hash.h | ||
| intarith.h | ||
| interval_set.h | ||
| inttypes.h | ||
| LogEntry.h | ||
| lru.h | ||
| nstring.h | ||
| object.h | ||
| page.h | ||
| pobject.h | ||
| rangeset.h | ||
| statlite.h | ||
| triple.h | ||
| tstring.h | ||
| types.h | ||
| uofs.h | ||
| utime.h | ||
| xlist.h | ||