[PATCH 5/5] fs/fs_context: Mark an unlikely if condition with unlikely() in vfs_parse_monolithic_sep()

[Zijun Hu <zijun_hu@icloud.com>]

From: Zijun Hu <quic_zijuhu@quicinc.com>

There is no mount option with pattern "...,=key_or_value,...", so the if
condition '(value == key)' in while loop of vfs_parse_monolithic_sep() is
is unlikely true.

Mark the condition with unlikely() to improve both performance and
readability.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 fs/fs_context.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fs_context.c b/fs/fs_context.c
index 582d33e8111739402d38dc9fc268e7d14ced3c49..284301d88bc90ef462a08c9ea893f822075a6d4d 100644
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -222,7 +222,7 @@ int vfs_parse_monolithic_sep(struct fs_context *fc, void *data,
 			char *value = strchr(key, '=');
 
 			if (value) {
-				if (value == key)
+				if (unlikely(value == key))
 					continue;
 				*value++ = 0;
 				v_len = strlen(value);

-- 
2.34.1