Issue with testcases/kernel/fs/doio/rwtest

[cmcgcc]

Hello,

ltp/testcases/kernel/fs/doio/rwtest

Line 332 in 51b8995

if test -h $(which df)

This line of rwtest clears dir and dfOpts options if it is a symlink because a symlink to busybox does not take options as described in the comments. But we see cases with a symlink to df.coreutils which works well with options.
I think more granular check is needed like

-                        if test -h $(which df)
-                           then
-                               dir=""; dfOpts="";
-                        fi
+			if [[ "$(readlink -f "$(which df)")" == *"busybox"* ]]
+			then
+				dir=""; dfOpts="";
+			fi

Thanks

[metan-ucw]

Can you send a proper signed patch please?

[pevik]

https://patchwork.ozlabs.org/project/ltp/patch/20231130004010.488496-1-mengcc@amazon.com/

[pevik]

Also note: #1110