proc_pid_mounts(5) File Formats Manual proc_pid_mounts(5)
NAME
/proc/pid/mounts - mounted filesystems
DESCRIPTION
/proc/pid/mounts (since Linux 2.4.19)
This file lists all the filesystems currently mounted in the
process's mount namespace (see mount_namespaces(7)). The format
of this file is documented in fstab(5).
Since Linux 2.6.15, this file is pollable: after opening the
file for reading, a change in this file (i.e., a filesystem
mount or unmount) causes select(2) to mark the file descriptor
as having an exceptional condition, and poll(2) and
epoll_wait(2) mark the file as having a priority event (POLL-
PRI). (Before Linux 2.6.30, a change in this file was indicated
by the file descriptor being marked as readable for select(2),
and being marked as having an error condition for poll(2) and
epoll_wait(2).)
/proc/mounts
Before Linux 2.4.19, this file was a list of all the filesystems
currently mounted on the system. With the introduction of per-
process mount namespaces in Linux 2.4.19 (see mount_name-
spaces(7)), this file became a link to /proc/self/mounts, which
lists the mounts of the process's own mount namespace. The for-
mat of this file is documented in fstab(5).
SEE ALSO
proc(5)
Linux man-pages 6.7 2023-08-15 proc_pid_mounts(5)
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