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| author | Theodore Ts'o <tytso@mit.edu> | 2009-06-17 11:47:48 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-06-17 11:47:48 -0400 |
| commit | 879c5e6b7cb4c689d08ca9b2e353d8ab3dc425d5 (patch) | |
| tree | 8b58103d6773a47d6fc29b47024e8b4092487c88 /include/linux/jbd2.h | |
| parent | 65795efbd380a832ae508b04dba8f8e53f0b84d9 (diff) | |
| download | lwn-879c5e6b7cb4c689d08ca9b2e353d8ab3dc425d5.tar.gz lwn-879c5e6b7cb4c689d08ca9b2e353d8ab3dc425d5.zip | |
jbd2: convert instrumentation from markers to tracepoints
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index cc02393bfce8..d97eb652d6ca 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1315,6 +1315,12 @@ extern int jbd_blocks_per_page(struct inode *inode); #define BUFFER_TRACE2(bh, bh2, info) do {} while (0) #define JBUFFER_TRACE(jh, info) do {} while (0) +/* + * jbd2_dev_to_name is a utility function used by the jbd2 and ext4 + * tracing infrastructure to map a dev_t to a device name. + */ +extern const char *jbd2_dev_to_name(dev_t device); + #endif /* __KERNEL__ */ #endif /* _LINUX_JBD2_H */ |