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(parent: 4480c27) | patch
gfs2: Add flocks to glockfd debugfs file
authorAndreas Gruenbacher <agruenba@redhat.com>
Thu, 23 Jun 2022 21:29:36 +0000 (23:29 +0200)
committerAndreas Gruenbacher <agruenba@redhat.com>
Wed, 29 Jun 2022 11:07:53 +0000 (13:07 +0200)
commit56535dc695f8e215dffb9557d6bcbdf46ff785d2
tree30f7fc17aef17946703a62fb8185cd8f7e03198ftree | snapshot
parent4480c27ca3eaaaae134633a594fba5601da13b4acommit | diff
gfs2: Add flocks to glockfd debugfs file

Include flock glocks in the "glockfd" debugfs file.  Those are similar to the
iopen glocks; while an open file is holding an flock, it is holding the file's
flock glock.

We cannot take f_fl_mutex in gfs2_glockfd_seq_show_flock() or else dumping the
"glockfd" file would block on flock operations.  Instead, use the file->f_lock
spin lock to protect the f_fl_gh.gh_gl glock pointer.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
fs/gfs2/file.c diff | blob | history
fs/gfs2/glock.c diff | blob | history
Domain: System / Kernel;