linux/include/net/9p, branch v3.5.2

9p: Reduce object size with CONFIG_NET_9P_DEBUG

2012-01-05T16:51:44Z

Reduce object size by deduplicating formats. Use vsprintf extension %pV. Rename P9_DPRINTK uses to p9_debug, align arguments. Add function for _p9_debug and macro to add __func__. Add missing "\n"s to p9_debug uses. Remove embedded function names as p9_debug adds it. Remove P9_EPRINTK macro and convert use to pr_. Add and use pr_fmt and pr_. $ size fs/9p/built-in.o* text data bss dec hex filename 62133 984 16000 79117 1350d fs/9p/built-in.o.new 67342 984 16928 85254 14d06 fs/9p/built-in.o.old $ size net/9p/built-in.o* text data bss dec hex filename 88792 4148 22024 114964 1c114 net/9p/built-in.o.new 94072 4148 23232 121452 1da6c net/9p/built-in.o.old Signed-off-by: Joe Perches Signed-off-by: Eric Van Hensbergen

net/9p: Convert net/9p protocol dumps to tracepoints

2011-10-24T16:13:12Z

This helps in more control over debugging. root@qemu-img-64:~# ls /pass/123 ls: cannot access /pass/123: No such file or directory root@qemu-img-64:~# cat /sys/kernel/debug/tracing/trace # tracer: nop # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | ls-1536 [001] 70.928584: 9p_protocol_dump: clnt 18446612132784021504 P9_TWALK(tag = 1) 000: 16 00 00 00 6e 01 00 01 00 00 00 02 00 00 00 01 010: 00 03 00 31 32 33 00 00 00 ff ff ff ff 00 00 00 ls-1536 [001] 70.928587: => trace_9p_protocol_dump => p9pdu_finalize => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat ls-1536 [000] 70.929696: 9p_protocol_dump: clnt 18446612132784021504 P9_RLERROR(tag = 1) 000: 0b 00 00 00 07 01 00 02 00 00 00 4e 03 00 02 00 010: 00 00 00 00 03 00 02 00 00 00 00 00 ff 43 00 00 ls-1536 [000] 70.929697: => trace_9p_protocol_dump => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat => do_path_lookup Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

fs/9p: change an int to unsigned int

2011-10-24T16:13:12Z

Without this msize=4294967295 will result in a crash Signed-off-by: Dan Carpenter Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

fs/9p: Update zero-copy implementation in 9p

2011-10-24T16:13:11Z

* remove lot of update to different data structure * add a seperate callback for zero copy request. * above makes non zero copy code path simpler * remove conditionalizing TREAD/TREADDIR/TWRITE in the zero copy path * Fix the dotu p9_check_errors with zero copy. Add sufficient doc around * Add support for both in and output buffers in zero copy callback * pin and unpin pages in the same context * use helpers instead of defining page offset and rest of page ourself * Fix mem leak in p9_check_errors * Remove 'E' and 'F' in p9pdu_vwritef Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

fs/9p: Use protocol-defined value for lock/getlock 'type' field.

2011-09-06T13:17:16Z

Signed-off-by: Jim Garlick Signed-off-by: Aneesh Kumar K.V

fs/9p: Add OS dependent open flags in 9p protocol

2011-09-06T13:17:15Z

Some of the flags are OS/arch dependent we add a 9p protocol value which maps to asm-generic/fcntl.h values in Linux Based on the original patch from Venkateswararao Jujjuri Signed-off-by: Aneesh Kumar K.V

fs/9p: add 9P2000.L unlinkat operation

2011-07-23T14:32:52Z

unlinkat - Remove a directory entry size[4] Tunlinkat tag[2] dirfid[4] name[s] flag[4] size[4] Runlinkat tag[2] older Tremove have the below request format size[4] Tremove tag[2] fid[4] The remove message is used to remove a directory entry either file or directory The remove opreation is actually a directory opertation and should ideally have dirfid, if not we cannot represent the fid on server with anything other than name. We will have to derive the directory name from fid in the Tremove request. NOTE: The operation doesn't clunk the unlink fid. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

fs/9p: add 9P2000.L renameat operation

2011-07-23T14:32:51Z

renameat - change name of file or directory size[4] Trenameat tag[2] olddirfid[4] oldname[s] newdirfid[4] newname[s] size[4] Rrenameat tag[2] older Trename have the below request format size[4] Trename tag[2] fid[4] newdirfid[4] name[s] The rename message is used to change the name of a file, possibly moving it to a new directory. The rename opreation is actually a directory opertation and should ideally have olddirfid, if not we cannot represent the fid on server with anything other than name. We will have to derive the old directory name from fid in the Trename request. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

fs/9p: Clean-up get_protocol_version() to use strcmp

2011-07-23T14:32:49Z

Signed-off-by: Prem Karat Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen

net/9p: Remove structure not used in the code

2011-07-23T14:32:48Z

Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen