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| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-19 18:59:33 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-22 08:58:17 -0400 |
| commit | f4ce1299b329e96bb247c95c4fee8809827d6931 (patch) | |
| tree | b4056d4f78b0594f84c8e4b3beda565a05751993 /fs/nfs/file.c | |
| parent | NFS: refactor code for calculating the crc32 hash of a filehandle (diff) | |
| download | linux-dev-f4ce1299b329e96bb247c95c4fee8809827d6931.tar.xz linux-dev-f4ce1299b329e96bb247c95c4fee8809827d6931.zip | |
NFS: Add event tracing for generic NFS events
Add tracepoints for inode attribute updates, attribute revalidation,
writeback start/end fsync start/end, attribute change start/end,
permission check start/end.
The intention is to enable performance tracing using 'perf'as well as
improving debugging.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/file.c')
| -rw-r--r-- | fs/nfs/file.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 94e94bd11aae..d6a9db0a8545 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -37,6 +37,8 @@ #include "iostat.h" #include "fscache.h" +#include "nfstrace.h" + #define NFSDBG_FACILITY NFSDBG_FILE static const struct vm_operations_struct nfs_file_vm_ops; @@ -294,6 +296,8 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) int ret; struct inode *inode = file_inode(file); + trace_nfs_fsync_enter(inode); + do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret != 0) @@ -310,6 +314,7 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) end = LLONG_MAX; } while (ret == -EAGAIN); + trace_nfs_fsync_exit(inode, ret); return ret; } |