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Subject[PATCH v2 1/6] Documentation, arch: Remove leftovers from fscache/cachefiles histograms
Date
A few references to the fscache and cachefiles histograms were left in
the Documentation and some arch defconfigs: remove them since those
configs do not exist anymore.

Fixes: 6ae9bd8bb037("fscache, cachefiles: Remove the histogram stuff")
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Acked-by: Arnd Bergmann <arnd@arndb.de> [arch/arm/configs]
---
.../filesystems/caching/cachefiles.rst | 34 -------------------
Documentation/filesystems/caching/fscache.rst | 34 ++-----------------
arch/arm/configs/axm55xx_defconfig | 2 --
3 files changed, 2 insertions(+), 68 deletions(-)

diff --git a/Documentation/filesystems/caching/cachefiles.rst b/Documentation/filesystems/caching/cachefiles.rst
index e58bc1fd312a..e59861458029 100644
--- a/Documentation/filesystems/caching/cachefiles.rst
+++ b/Documentation/filesystems/caching/cachefiles.rst
@@ -424,40 +424,6 @@ for CacheFiles to run in a context of a specific security label, or to create
files and directories with another security label.


-Statistical Information
-=======================
-
-If FS-Cache is compiled with the following option enabled::
-
- CONFIG_CACHEFILES_HISTOGRAM=y
-
-then it will gather certain statistics and display them through a proc file.
-
- /proc/fs/cachefiles/histogram
-
- ::
-
- cat /proc/fs/cachefiles/histogram
- JIFS SECS LOOKUPS MKDIRS CREATES
- ===== ===== ========= ========= =========
-
- This shows the breakdown of the number of times each amount of time
- between 0 jiffies and HZ-1 jiffies a variety of tasks took to run. The
- columns are as follows:
-
- ======= =======================================================
- COLUMN TIME MEASUREMENT
- ======= =======================================================
- LOOKUPS Length of time to perform a lookup on the backing fs
- MKDIRS Length of time to perform a mkdir on the backing fs
- CREATES Length of time to perform a create on the backing fs
- ======= =======================================================
-
- Each row shows the number of events that took a particular range of times.
- Each step is 1 jiffy in size. The JIFS column indicates the particular
- jiffy range covered, and the SECS field the equivalent number of seconds.
-
-
Debugging
=========

diff --git a/Documentation/filesystems/caching/fscache.rst b/Documentation/filesystems/caching/fscache.rst
index 70de86922b6a..66e31a6d1070 100644
--- a/Documentation/filesystems/caching/fscache.rst
+++ b/Documentation/filesystems/caching/fscache.rst
@@ -201,10 +201,9 @@ Statistical Information
If FS-Cache is compiled with the following options enabled::

CONFIG_FSCACHE_STATS=y
- CONFIG_FSCACHE_HISTOGRAM=y

-then it will gather certain statistics and display them through a number of
-proc files.
+then it will gather certain statistics and display them through the following
+proc file.

/proc/fs/fscache/stats
----------------------
@@ -413,35 +412,6 @@ proc files.



-/proc/fs/fscache/histogram
---------------------------
-
- ::
-
- cat /proc/fs/fscache/histogram
- JIFS SECS OBJ INST OP RUNS OBJ RUNS RETRV DLY RETRIEVLS
- ===== ===== ========= ========= ========= ========= =========
-
- This shows the breakdown of the number of times each amount of time
- between 0 jiffies and HZ-1 jiffies a variety of tasks took to run. The
- columns are as follows:
-
- ========= =======================================================
- COLUMN TIME MEASUREMENT
- ========= =======================================================
- OBJ INST Length of time to instantiate an object
- OP RUNS Length of time a call to process an operation took
- OBJ RUNS Length of time a call to process an object event took
- RETRV DLY Time between an requesting a read and lookup completing
- RETRIEVLS Time between beginning and end of a retrieval
- ========= =======================================================
-
- Each row shows the number of events that took a particular range of times.
- Each step is 1 jiffy in size. The JIFS column indicates the particular
- jiffy range covered, and the SECS field the equivalent number of seconds.
-
-
-
Object List
===========

diff --git a/arch/arm/configs/axm55xx_defconfig b/arch/arm/configs/axm55xx_defconfig
index 46075216ee6d..b36e0b347d1f 100644
--- a/arch/arm/configs/axm55xx_defconfig
+++ b/arch/arm/configs/axm55xx_defconfig
@@ -204,11 +204,9 @@ CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_FSCACHE=y
CONFIG_FSCACHE_STATS=y
-CONFIG_FSCACHE_HISTOGRAM=y
CONFIG_FSCACHE_DEBUG=y
CONFIG_FSCACHE_OBJECT_LIST=y
CONFIG_CACHEFILES=y
-CONFIG_CACHEFILES_HISTOGRAM=y
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=y
CONFIG_MSDOS_FS=y
--
2.32.0
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