From: hongnanli <hongnan.li@xxxxxxxxxxxxxxxxx> Subject: fs/ocfs2: fix comments mentioning i_mutex inode->i_mutex has been replaced with inode->i_rwsem long ago. Fix comments still mentioning i_mutex. Link: https://lkml.kernel.org/r/20220214031314.100094-1-hongnan.li@xxxxxxxxxxxxxxxxx Signed-off-by: hongnanli <hongnan.li@xxxxxxxxxxxxxxxxx> Acked-by: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx> Cc: Mark Fasheh <mark@xxxxxxxxxx> Cc: Joel Becker <jlbec@xxxxxxxxxxxx> Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx> Cc: Changwei Ge <gechangwei@xxxxxxx> Cc: Gang He <ghe@xxxxxxxx> Cc: Jun Piao <piaojun@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/ocfs2/alloc.c | 2 +- fs/ocfs2/aops.c | 2 +- fs/ocfs2/cluster/nodemanager.c | 2 +- fs/ocfs2/dir.c | 4 ++-- fs/ocfs2/file.c | 4 ++-- fs/ocfs2/inode.c | 2 +- fs/ocfs2/localalloc.c | 6 +++--- fs/ocfs2/namei.c | 2 +- fs/ocfs2/ocfs2.h | 4 ++-- fs/ocfs2/quota_global.c | 2 +- fs/ocfs2/xattr.c | 2 +- 11 files changed, 16 insertions(+), 16 deletions(-) --- a/fs/ocfs2/alloc.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/alloc.c @@ -5981,7 +5981,7 @@ bail: return status; } -/* Expects you to already be holding tl_inode->i_mutex */ +/* Expects you to already be holding tl_inode->i_rwsem */ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb) { int status; --- a/fs/ocfs2/aops.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/aops.c @@ -2311,7 +2311,7 @@ static int ocfs2_dio_end_io_write(struct down_write(&oi->ip_alloc_sem); - /* Delete orphan before acquire i_mutex. */ + /* Delete orphan before acquire i_rwsem. */ if (dwc->dw_orphaned) { BUG_ON(dwc->dw_writer_pid != task_pid_nr(current)); --- a/fs/ocfs2/cluster/nodemanager.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/cluster/nodemanager.c @@ -689,7 +689,7 @@ static struct config_group *o2nm_cluster struct o2nm_node_group *ns = NULL; struct config_group *o2hb_group = NULL, *ret = NULL; - /* this runs under the parent dir's i_mutex; there can be only + /* this runs under the parent dir's i_rwsem; there can be only * one caller in here at a time */ if (o2nm_single_cluster) return ERR_PTR(-ENOSPC); --- a/fs/ocfs2/dir.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/dir.c @@ -1957,7 +1957,7 @@ bail_nolock: } /* - * NOTE: this should always be called with parent dir i_mutex taken. + * NOTE: this should always be called with parent dir i_rwsem taken. */ int ocfs2_find_files_on_disk(const char *name, int namelen, @@ -2003,7 +2003,7 @@ int ocfs2_lookup_ino_from_name(struct in * Return 0 if the name does not exist * Return -EEXIST if the directory contains the name * - * Callers should have i_mutex + a cluster lock on dir + * Callers should have i_rwsem + a cluster lock on dir */ int ocfs2_check_dir_for_entry(struct inode *dir, const char *name, --- a/fs/ocfs2/file.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/file.c @@ -270,7 +270,7 @@ int ocfs2_update_inode_atime(struct inod /* * Don't use ocfs2_mark_inode_dirty() here as we don't always - * have i_mutex to guard against concurrent changes to other + * have i_rwsem to guard against concurrent changes to other * inode fields. */ inode->i_atime = current_time(inode); @@ -1065,7 +1065,7 @@ static int ocfs2_extend_file(struct inod /* * The alloc sem blocks people in read/write from reading our * allocation until we're done changing it. We depend on - * i_mutex to block other extend/truncate calls while we're + * i_rwsem to block other extend/truncate calls while we're * here. We even have to hold it for sparse files because there * might be some tail zeroing. */ --- a/fs/ocfs2/inode.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/inode.c @@ -713,7 +713,7 @@ bail: /* * Serialize with orphan dir recovery. If the process doing * recovery on this orphan dir does an iget() with the dir - * i_mutex held, we'll deadlock here. Instead we detect this + * i_rwsem held, we'll deadlock here. Instead we detect this * and exit early - recovery will wipe this inode for us. */ static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb, --- a/fs/ocfs2/localalloc.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/localalloc.c @@ -606,7 +606,7 @@ out: /* * make sure we've got at least bits_wanted contiguous bits in the - * local alloc. You lose them when you drop i_mutex. + * local alloc. You lose them when you drop i_rwsem. * * We will add ourselves to the transaction passed in, but may start * our own in order to shift windows. @@ -636,7 +636,7 @@ int ocfs2_reserve_local_alloc_bits(struc /* * We must double check state and allocator bits because - * another process may have changed them while holding i_mutex. + * another process may have changed them while holding i_rwsem. */ spin_lock(&osb->osb_lock); if (!ocfs2_la_state_enabled(osb) || @@ -1029,7 +1029,7 @@ enum ocfs2_la_event { /* * Given an event, calculate the size of our next local alloc window. * - * This should always be called under i_mutex of the local alloc inode + * This should always be called under i_rwsem of the local alloc inode * so that local alloc disabling doesn't race with processes trying to * use the allocator. * --- a/fs/ocfs2/namei.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/namei.c @@ -476,7 +476,7 @@ leave: ocfs2_free_alloc_context(meta_ac); /* - * We should call iput after the i_mutex of the bitmap been + * We should call iput after the i_rwsem of the bitmap been * unlocked in ocfs2_free_alloc_context, or the * ocfs2_delete_inode will mutex_lock again. */ --- a/fs/ocfs2/ocfs2.h~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/ocfs2.h @@ -355,7 +355,7 @@ struct ocfs2_super struct delayed_work la_enable_wq; /* - * Must hold local alloc i_mutex and osb->osb_lock to change + * Must hold local alloc i_rwsem and osb->osb_lock to change * local_alloc_bits. Reads can be done under either lock. */ unsigned int local_alloc_bits; @@ -430,7 +430,7 @@ struct ocfs2_super atomic_t osb_tl_disable; /* * How many clusters in our truncate log. - * It must be protected by osb_tl_inode->i_mutex. + * It must be protected by osb_tl_inode->i_rwsem. */ unsigned int truncated_clusters; --- a/fs/ocfs2/quota_global.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/quota_global.c @@ -36,7 +36,7 @@ * should be obeyed by all the functions: * - any write of quota structure (either to local or global file) is protected * by dqio_sem or dquot->dq_lock. - * - any modification of global quota file holds inode cluster lock, i_mutex, + * - any modification of global quota file holds inode cluster lock, i_rwsem, * and ip_alloc_sem of the global quota file (achieved by * ocfs2_lock_global_qf). It also has to hold qinfo_lock. * - an allocation of new blocks for local quota file is protected by --- a/fs/ocfs2/xattr.c~fs-ocfs2-fix-comments-mentioning-i_mutex +++ a/fs/ocfs2/xattr.c @@ -7205,7 +7205,7 @@ out: * Used for reflink a non-preserve-security file. * * It uses common api like ocfs2_xattr_set, so the caller - * must not hold any lock expect i_mutex. + * must not hold any lock expect i_rwsem. */ int ocfs2_init_security_and_acl(struct inode *dir, struct inode *inode, _
