[PATCH] quotactl.2: Add documentation for quotactl_path()

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Expand the quotactl.2 manpage with a description for quotactl_path()
that takes a mountpoint path instead of a path to a block device.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 man2/quotactl.2      | 19 +++++++++++++++++--
 man2/quotactl_path.2 |  1 +
 2 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 man2/quotactl_path.2

diff --git a/man2/quotactl.2 b/man2/quotactl.2
index 7869c64ea..08f2ba02f 100644
--- a/man2/quotactl.2
+++ b/man2/quotactl.2
@@ -34,6 +34,8 @@ quotactl \- manipulate disk quotas
 .PP
 .BI "int quotactl(int " cmd ", const char *" special ", int " id \
 ", caddr_t " addr );
+.BI "int quotactl_path(int " cmd ", const char *" mountpoint ", int " id \
+", caddr_t " addr );
 .fi
 .SH DESCRIPTION
 The quota system can be used to set per-user, per-group, and per-project limits
@@ -48,7 +50,11 @@ after this, the soft limit counts as a hard limit.
 .PP
 The
 .BR quotactl ()
-call manipulates disk quotas.
+and
+.BR quotactl_path ()
+calls manipulate disk quotas. The difference between both functions is the way
+how the filesystem being manipulated is specified, see description of the arguments
+below.
 The
 .I cmd
 argument indicates a command to be applied to the user or
@@ -75,10 +81,19 @@ value is described below.
 .PP
 The
 .I special
-argument is a pointer to a null-terminated string containing the pathname
+argument to
+.BR quotactl ()
+is a pointer to a null-terminated string containing the pathname
 of the (mounted) block special device for the filesystem being manipulated.
 .PP
 The
+.I mountpoint
+argument to
+.BR quotactl_path ()
+is a pointer to a null-terminated string containing the pathname
+of the mountpoint for the filesystem being manipulated.
+.PP
+The
 .I addr
 argument is the address of an optional, command-specific, data structure
 that is copied in or out of the system.
diff --git a/man2/quotactl_path.2 b/man2/quotactl_path.2
new file mode 100644
index 000000000..5f63187c6
--- /dev/null
+++ b/man2/quotactl_path.2
@@ -0,0 +1 @@
+.so man2/quotactl.2
-- 
2.20.1




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