[PATCH v2 1/6] Documentation, arch: Remove leftovers from fscache/cachefiles histograms
From: Alexandre Ghiti <hidden>
Date: 2021-12-16 09:45:58
Also in:
linux-arm-kernel, linux-doc, linux-mips, linux-sh, linuxppc-dev, lkml
Subsystem:
arm port, cachefiles: fs-cache backend for caching on mounted filesystems, documentation, filesystems [netfs library], the rest · Maintainers:
Russell King, David Howells, Jonathan Corbet, Paulo Alcantara, Linus Torvalds
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 <redacted>
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