* Try to cleanup cache directory when initing without enough disk space
Also optimize log messages to print detailed errors to the user.
Signed-off-by: Qinqi Qu <quqinqi@linux.alibaba.com>
* s3fs: add option free_space_ratio to control cache size
Since the ensure_diskfree option is not convenient enough, we have added
a new option "-o free_space_ratio" to control the space used by the s3fs
cache based on the current disk size.
The value of this option can be between 0 and 100. It will control the
size of the cache according to this ratio to ensure that the idle ratio
of the disk is greater than this value.
For example, when the value is 10 and the disk space is 50GB, it will
ensure that the disk will reserve at least 50GB * 10% = 5GB of remaining
space.
Signed-off-by: Qinqi Qu <quqinqi@linux.alibaba.com>
---------
Signed-off-by: Qinqi Qu <quqinqi@linux.alibaba.com>
Few applications create the dir_$folder$ objects and users can enable
compat_dir if required. This commit reduces readdir latency by 33%.
Also remove notsup_compat_dir from tests since these directories are
never created. Fixes#927. References #1643.
This should improve performance in many situations. s3fs already
enables the stat cache by default so memorizing noobj makes this more
consistent. Fixes#1901.
