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mount-utils: isMountPointMatch: simplify and speedup

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Here's before/after comparison.

[kir@kir-rhat mount-utils]$ benchstat before after
name                 old time/op    new time/op    delta
IsMountPointMatch-4     707ns ± 1%      40ns ± 1%   -94.39%  (p=0.008 n=5+5)

name                 old alloc/op   new alloc/op   delta
IsMountPointMatch-4      264B ± 0%        0B       -100.00%  (p=0.008 n=5+5)

name                 old allocs/op  new allocs/op  delta
IsMountPointMatch-4      11.0 ± 0%       0.0       -100.00%  (p=0.008 n=5+5)

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin 2023-05-09 15:29:03 -07:00
parent 404e844468
commit 8c79a91133
1 changed files with 1 additions and 2 deletions
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3
staging/src/k8s.io/mount-utils/mount_helper_unix.go
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@ -173,8 +173,7 @@ func splitMountOptions(s string) []string {
// isMountPointMatch returns true if the path in mp is the same as dir.
// Handles case where mountpoint dir has been renamed due to stale NFS mount.
func isMountPointMatch(mp MountPoint, dir string) bool {
deletedDir := fmt.Sprintf("%s\\040(deleted)", dir)
return ((mp.Path == dir) || (mp.Path == deletedDir))
return strings.TrimSuffix(mp.Path, "\\040(deleted)") == dir
}
// PathExists returns true if the specified path exists.