[patch 15/20] mutex subsystem, semaphore to mutex: VFS, ->i_sem, more
From: Ingo Molnar
Date: Tue Jan 03 2006 - 18:08:29 EST
more i_sem -> i_mutex conversions that were needed for my .config.
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
----
fs/cifs/inode.c | 2 +-
fs/ext2/acl.c | 8 ++++----
fs/ext2/ext2.h | 2 +-
fs/ext2/xattr.c | 2 +-
fs/ext3/acl.c | 8 ++++----
fs/ext3/xattr.c | 2 +-
fs/jfs/jfs_incore.h | 4 ++--
fs/libfs.c | 2 +-
fs/nfs/dir.c | 6 +++---
fs/nfsd/nfs4recover.c | 20 ++++++++++----------
fs/ntfs/attrib.c | 4 ++--
fs/ntfs/dir.c | 8 ++++----
fs/ntfs/index.c | 6 +++---
fs/ntfs/inode.c | 4 ++--
fs/ntfs/namei.c | 2 +-
fs/quota.c | 2 +-
fs/reiserfs/inode.c | 4 ++--
fs/reiserfs/tail_conversion.c | 2 +-
fs/reiserfs/xattr.c | 16 ++++++++--------
fs/reiserfs/xattr_acl.c | 6 +++---
fs/sysfs/inode.c | 2 +-
fs/xfs/linux-2.6/xfs_iops.c | 2 +-
fs/xfs/linux-2.6/xfs_lrw.c | 2 +-
fs/xfs/xfs_dmapi.h | 14 +++++++-------
include/linux/ext3_fs_i.h | 2 +-
include/linux/fs.h | 4 ++--
include/linux/jffs2_fs_i.h | 4 ++--
include/linux/nfsd/nfsfh.h | 2 +-
include/linux/reiserfs_fs.h | 2 +-
ipc/mqueue.c | 8 ++++----
kernel/cpuset.c | 10 +++++-----
mm/filemap.c | 14 +++++++-------
mm/filemap_xip.c | 4 ++--
mm/msync.c | 2 +-
mm/rmap.c | 8 ++++----
mm/shmem.c | 2 +-
mm/truncate.c | 2 +-
security/inode.c | 8 ++++----
sound/core/oss/pcm_oss.c | 4 ++--
sound/core/seq/seq_memory.c | 4 ----
40 files changed, 103 insertions(+), 107 deletions(-)
Index: linux/fs/cifs/inode.c
===================================================================
--- linux.orig/fs/cifs/inode.c
+++ linux/fs/cifs/inode.c
@@ -1041,7 +1041,7 @@ int cifs_revalidate(struct dentry *diren
/* can not grab this sem since kernel filesys locking documentation
indicates i_mutex may be taken by the kernel on lookup and rename
- which could deadlock if we grab the i_sem here as well */
+ which could deadlock if we grab the i_mutex here as well */
/* mutex_lock(&direntry->d_inode->i_mutex);*/
/* need to write out dirty pages here */
if (direntry->d_inode->i_mapping) {
Index: linux/fs/ext2/acl.c
===================================================================
--- linux.orig/fs/ext2/acl.c
+++ linux/fs/ext2/acl.c
@@ -211,7 +211,7 @@ ext2_get_acl(struct inode *inode, int ty
}
/*
- * inode->i_mutex: down
+ * inode->i_mutex: locked
*/
static int
ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
@@ -301,8 +301,8 @@ ext2_permission(struct inode *inode, int
/*
* Initialize the ACLs of a new inode. Called from ext2_new_inode.
*
- * dir->i_mutex: down
- * inode->i_mutex: up (access to inode is still exclusive)
+ * dir->i_mutex: locked
+ * inode->i_mutex: unlocked (access to inode is still exclusive)
*/
int
ext2_init_acl(struct inode *inode, struct inode *dir)
@@ -361,7 +361,7 @@ cleanup:
* for directories) are added. There are no more bits available in the
* file mode.
*
- * inode->i_mutex: down
+ * inode->i_mutex: locked
*/
int
ext2_acl_chmod(struct inode *inode)
Index: linux/fs/ext2/ext2.h
===================================================================
--- linux.orig/fs/ext2/ext2.h
+++ linux/fs/ext2/ext2.h
@@ -53,7 +53,7 @@ struct ext2_inode_info {
#ifdef CONFIG_EXT2_FS_XATTR
/*
* Extended attributes can be read independently of the main file
- * data. Taking i_sem even when reading would cause contention
+ * data. Taking i_mutex even when reading would cause contention
* between readers of EAs and writers of regular file data, so
* instead we synchronize on xattr_sem when reading or changing
* EAs.
Index: linux/fs/ext2/xattr.c
===================================================================
--- linux.orig/fs/ext2/xattr.c
+++ linux/fs/ext2/xattr.c
@@ -325,7 +325,7 @@ cleanup:
/*
* Inode operation listxattr()
*
- * dentry->d_inode->i_sem: don't care
+ * dentry->d_inode->i_mutex: don't care
*/
ssize_t
ext2_listxattr(struct dentry *dentry, char *buffer, size_t size)
Index: linux/fs/ext3/acl.c
===================================================================
--- linux.orig/fs/ext3/acl.c
+++ linux/fs/ext3/acl.c
@@ -216,7 +216,7 @@ ext3_get_acl(struct inode *inode, int ty
/*
* Set the access or default ACL of an inode.
*
- * inode->i_mutex: down unless called from ext3_new_inode
+ * inode->i_mutex: locked unless called from ext3_new_inode
*/
static int
ext3_set_acl(handle_t *handle, struct inode *inode, int type,
@@ -306,8 +306,8 @@ ext3_permission(struct inode *inode, int
/*
* Initialize the ACLs of a new inode. Called from ext3_new_inode.
*
- * dir->i_mutex: down
- * inode->i_mutex: up (access to inode is still exclusive)
+ * dir->i_mutex: locked
+ * inode->i_mutex: unlocked (access to inode is still exclusive)
*/
int
ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
@@ -368,7 +368,7 @@ cleanup:
* for directories) are added. There are no more bits available in the
* file mode.
*
- * inode->i_mutex: down
+ * inode->i_mutex: locked
*/
int
ext3_acl_chmod(struct inode *inode)
Index: linux/fs/ext3/xattr.c
===================================================================
--- linux.orig/fs/ext3/xattr.c
+++ linux/fs/ext3/xattr.c
@@ -140,7 +140,7 @@ ext3_xattr_handler(int name_index)
/*
* Inode operation listxattr()
*
- * dentry->d_inode->i_sem: don't care
+ * dentry->d_inode->i_mutex: don't care
*/
ssize_t
ext3_listxattr(struct dentry *dentry, char *buffer, size_t size)
Index: linux/fs/jfs/jfs_incore.h
===================================================================
--- linux.orig/fs/jfs/jfs_incore.h
+++ linux/fs/jfs/jfs_incore.h
@@ -58,7 +58,7 @@ struct jfs_inode_info {
/*
* rdwrlock serializes xtree between reads & writes and synchronizes
* changes to special inodes. It's use would be redundant on
- * directories since the i_sem taken in the VFS is sufficient.
+ * directories since the i_mutex taken in the VFS is sufficient.
*/
struct rw_semaphore rdwrlock;
/*
@@ -68,7 +68,7 @@ struct jfs_inode_info {
* inode is blocked in txBegin or TxBeginAnon
*/
struct semaphore commit_sem;
- /* xattr_sem allows us to access the xattrs without taking i_sem */
+ /* xattr_sem allows us to access the xattrs without taking i_mutex */
struct rw_semaphore xattr_sem;
lid_t xtlid; /* lid of xtree lock on directory */
#ifdef CONFIG_JFS_POSIX_ACL
Index: linux/fs/libfs.c
===================================================================
--- linux.orig/fs/libfs.c
+++ linux/fs/libfs.c
@@ -356,7 +356,7 @@ int simple_commit_write(struct file *fil
/*
* No need to use i_size_read() here, the i_size
- * cannot change under us because we hold the i_sem.
+ * cannot change under us because we hold the i_mutex.
*/
if (pos > inode->i_size)
i_size_write(inode, pos);
Index: linux/fs/nfs/dir.c
===================================================================
--- linux.orig/fs/nfs/dir.c
+++ linux/fs/nfs/dir.c
@@ -194,7 +194,7 @@ int nfs_readdir_filler(nfs_readdir_descr
spin_unlock(&inode->i_lock);
/* Ensure consistent page alignment of the data.
* Note: assumes we have exclusive access to this mapping either
- * through inode->i_sem or some other mechanism.
+ * through inode->i_mutex or some other mechanism.
*/
if (page->index == 0)
invalidate_inode_pages2_range(inode->i_mapping, PAGE_CACHE_SIZE, -1);
@@ -1001,7 +1001,7 @@ static int nfs_open_revalidate(struct de
openflags &= ~(O_CREAT|O_TRUNC);
/*
- * Note: we're not holding inode->i_sem and so may be racing with
+ * Note: we're not holding inode->i_mutex and so may be racing with
* operations that change the directory. We therefore save the
* change attribute *before* we do the RPC call.
*/
@@ -1051,7 +1051,7 @@ static struct dentry *nfs_readdir_lookup
return dentry;
if (!desc->plus || !(entry->fattr->valid & NFS_ATTR_FATTR))
return NULL;
- /* Note: caller is already holding the dir->i_sem! */
+ /* Note: caller is already holding the dir->i_mutex! */
dentry = d_alloc(parent, &name);
if (dentry == NULL)
return NULL;
Index: linux/fs/nfsd/nfs4recover.c
===================================================================
--- linux.orig/fs/nfsd/nfs4recover.c
+++ linux/fs/nfsd/nfs4recover.c
@@ -121,9 +121,9 @@ out:
static void
nfsd4_sync_rec_dir(void)
{
- down(&rec_dir.dentry->d_inode->i_sem);
+ mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
nfsd_sync_dir(rec_dir.dentry);
- up(&rec_dir.dentry->d_inode->i_sem);
+ mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
}
int
@@ -143,7 +143,7 @@ nfsd4_create_clid_dir(struct nfs4_client
nfs4_save_user(&uid, &gid);
/* lock the parent */
- down(&rec_dir.dentry->d_inode->i_sem);
+ mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
dentry = lookup_one_len(dname, rec_dir.dentry, HEXDIR_LEN-1);
if (IS_ERR(dentry)) {
@@ -159,7 +159,7 @@ nfsd4_create_clid_dir(struct nfs4_client
out_put:
dput(dentry);
out_unlock:
- up(&rec_dir.dentry->d_inode->i_sem);
+ mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
if (status == 0) {
clp->cl_firststate = 1;
nfsd4_sync_rec_dir();
@@ -259,9 +259,9 @@ nfsd4_remove_clid_file(struct dentry *di
printk("nfsd4: non-file found in client recovery directory\n");
return -EINVAL;
}
- down(&dir->d_inode->i_sem);
+ mutex_lock(&dir->d_inode->i_mutex);
status = vfs_unlink(dir->d_inode, dentry);
- up(&dir->d_inode->i_sem);
+ mutex_unlock(&dir->d_inode->i_mutex);
return status;
}
@@ -274,9 +274,9 @@ nfsd4_clear_clid_dir(struct dentry *dir,
* any regular files anyway, just in case the directory was created by
* a kernel from the future.... */
nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file);
- down(&dir->d_inode->i_sem);
+ mutex_lock(&dir->d_inode->i_mutex);
status = vfs_rmdir(dir->d_inode, dentry);
- up(&dir->d_inode->i_sem);
+ mutex_unlock(&dir->d_inode->i_mutex);
return status;
}
@@ -288,9 +288,9 @@ nfsd4_unlink_clid_dir(char *name, int na
dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
- down(&rec_dir.dentry->d_inode->i_sem);
+ mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
dentry = lookup_one_len(name, rec_dir.dentry, namlen);
- up(&rec_dir.dentry->d_inode->i_sem);
+ mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
if (IS_ERR(dentry)) {
status = PTR_ERR(dentry);
return status;
Index: linux/fs/ntfs/attrib.c
===================================================================
--- linux.orig/fs/ntfs/attrib.c
+++ linux/fs/ntfs/attrib.c
@@ -1532,7 +1532,7 @@ int ntfs_resident_attr_value_resize(MFT_
* NOTE to self: No changes in the attribute list are required to move from
* a resident to a non-resident attribute.
*
- * Locking: - The caller must hold i_sem on the inode.
+ * Locking: - The caller must hold i_mutex on the inode.
*/
int ntfs_attr_make_non_resident(ntfs_inode *ni, const u32 data_size)
{
@@ -1728,7 +1728,7 @@ int ntfs_attr_make_non_resident(ntfs_ino
/*
* This needs to be last since the address space operations ->readpage
* and ->writepage can run concurrently with us as they are not
- * serialized on i_sem. Note, we are not allowed to fail once we flip
+ * serialized on i_mutex. Note, we are not allowed to fail once we flip
* this switch, which is another reason to do this last.
*/
NInoSetNonResident(ni);
Index: linux/fs/ntfs/dir.c
===================================================================
--- linux.orig/fs/ntfs/dir.c
+++ linux/fs/ntfs/dir.c
@@ -69,7 +69,7 @@ ntfschar I30[5] = { const_cpu_to_le16('$
* work but we don't care for how quickly one can access them. This also fixes
* the dcache aliasing issues.
*
- * Locking: - Caller must hold i_sem on the directory.
+ * Locking: - Caller must hold i_mutex on the directory.
* - Each page cache page in the index allocation mapping must be
* locked whilst being accessed otherwise we may find a corrupt
* page due to it being under ->writepage at the moment which
@@ -1085,11 +1085,11 @@ static inline int ntfs_filldir(ntfs_volu
* While this will return the names in random order this doesn't matter for
* ->readdir but OTOH results in a faster ->readdir.
*
- * VFS calls ->readdir without BKL but with i_sem held. This protects the VFS
+ * VFS calls ->readdir without BKL but with i_mutex held. This protects the VFS
* parts (e.g. ->f_pos and ->i_size, and it also protects against directory
* modifications).
*
- * Locking: - Caller must hold i_sem on the directory.
+ * Locking: - Caller must hold i_mutex on the directory.
* - Each page cache page in the index allocation mapping must be
* locked whilst being accessed otherwise we may find a corrupt
* page due to it being under ->writepage at the moment which
@@ -1520,7 +1520,7 @@ static int ntfs_dir_open(struct inode *v
* Note: In the past @filp could be NULL so we ignore it as we don't need it
* anyway.
*
- * Locking: Caller must hold i_sem on the inode.
+ * Locking: Caller must hold i_mutex on the inode.
*
* TODO: We should probably also write all attribute/index inodes associated
* with this inode but since we have no simple way of getting to them we ignore
Index: linux/fs/ntfs/index.c
===================================================================
--- linux.orig/fs/ntfs/index.c
+++ linux/fs/ntfs/index.c
@@ -32,7 +32,7 @@
* Allocate a new index context, initialize it with @idx_ni and return it.
* Return NULL if allocation failed.
*
- * Locking: Caller must hold i_sem on the index inode.
+ * Locking: Caller must hold i_mutex on the index inode.
*/
ntfs_index_context *ntfs_index_ctx_get(ntfs_inode *idx_ni)
{
@@ -50,7 +50,7 @@ ntfs_index_context *ntfs_index_ctx_get(n
*
* Release the index context @ictx, releasing all associated resources.
*
- * Locking: Caller must hold i_sem on the index inode.
+ * Locking: Caller must hold i_mutex on the index inode.
*/
void ntfs_index_ctx_put(ntfs_index_context *ictx)
{
@@ -106,7 +106,7 @@ void ntfs_index_ctx_put(ntfs_index_conte
* or ntfs_index_entry_write() before the call to ntfs_index_ctx_put() to
* ensure that the changes are written to disk.
*
- * Locking: - Caller must hold i_sem on the index inode.
+ * Locking: - Caller must hold i_mutex on the index inode.
* - Each page cache page in the index allocation mapping must be
* locked whilst being accessed otherwise we may find a corrupt
* page due to it being under ->writepage at the moment which
Index: linux/fs/ntfs/inode.c
===================================================================
--- linux.orig/fs/ntfs/inode.c
+++ linux/fs/ntfs/inode.c
@@ -2311,7 +2311,7 @@ static const char *es = " Leaving incon
*
* Returns 0 on success or -errno on error.
*
- * Called with ->i_sem held. In all but one case ->i_alloc_sem is held for
+ * Called with ->i_mutex held. In all but one case ->i_alloc_sem is held for
* writing. The only case in the kernel where ->i_alloc_sem is not held is
* mm/filemap.c::generic_file_buffered_write() where vmtruncate() is called
* with the current i_size as the offset. The analogous place in NTFS is in
@@ -2831,7 +2831,7 @@ void ntfs_truncate_vfs(struct inode *vi)
* We also abort all changes of user, group, and mode as we do not implement
* the NTFS ACLs yet.
*
- * Called with ->i_sem held. For the ATTR_SIZE (i.e. ->truncate) case, also
+ * Called with ->i_mutex held. For the ATTR_SIZE (i.e. ->truncate) case, also
* called with ->i_alloc_sem held for writing.
*
* Basically this is a copy of generic notify_change() and inode_setattr()
Index: linux/fs/ntfs/namei.c
===================================================================
--- linux.orig/fs/ntfs/namei.c
+++ linux/fs/ntfs/namei.c
@@ -374,7 +374,7 @@ struct inode_operations ntfs_dir_inode_o
* The code is based on the ext3 ->get_parent() implementation found in
* fs/ext3/namei.c::ext3_get_parent().
*
- * Note: ntfs_get_parent() is called with @child_dent->d_inode->i_mutex down.
+ * Note: ntfs_get_parent() is called with @child_dent->d_inode->i_mutex locked.
*
* Return the dentry of the parent directory on success or the error code on
* error (IS_ERR() is true).
Index: linux/fs/quota.c
===================================================================
--- linux.orig/fs/quota.c
+++ linux/fs/quota.c
@@ -168,7 +168,7 @@ static void quota_sync_sb(struct super_b
sync_blockdev(sb->s_bdev);
/* Now when everything is written we can discard the pagecache so
- * that userspace sees the changes. We need i_sem and so we could
+ * that userspace sees the changes. We need i_mutex and so we could
* not do it inside dqonoff_sem. Moreover we need to be carefull
* about races with quotaoff() (that is the reason why we have own
* reference to inode). */
Index: linux/fs/reiserfs/inode.c
===================================================================
--- linux.orig/fs/reiserfs/inode.c
+++ linux/fs/reiserfs/inode.c
@@ -586,7 +586,7 @@ static inline int _allocate_block(struct
BUG_ON(!th->t_trans_id);
#ifdef REISERFS_PREALLOCATE
- if (!(flags & GET_BLOCK_NO_ISEM)) {
+ if (!(flags & GET_BLOCK_NO_IMUTEX)) {
return reiserfs_new_unf_blocknrs2(th, inode, allocated_block_nr,
path, block);
}
@@ -2318,7 +2318,7 @@ static int map_block_for_writepage(struc
/* this is where we fill in holes in the file. */
if (use_get_block) {
retval = reiserfs_get_block(inode, block, bh_result,
- GET_BLOCK_CREATE | GET_BLOCK_NO_ISEM
+ GET_BLOCK_CREATE | GET_BLOCK_NO_IMUTEX
| GET_BLOCK_NO_DANGLE);
if (!retval) {
if (!buffer_mapped(bh_result)
Index: linux/fs/reiserfs/tail_conversion.c
===================================================================
--- linux.orig/fs/reiserfs/tail_conversion.c
+++ linux/fs/reiserfs/tail_conversion.c
@@ -205,7 +205,7 @@ int indirect2direct(struct reiserfs_tran
1) * p_s_sb->s_blocksize;
pos1 = pos;
- // we are protected by i_sem. The tail can not disapper, not
+ // we are protected by i_mutex. The tail can not disapper, not
// append can be done either
// we are in truncate or packing tail in file_release
Index: linux/fs/reiserfs/xattr.c
===================================================================
--- linux.orig/fs/reiserfs/xattr.c
+++ linux/fs/reiserfs/xattr.c
@@ -219,7 +219,7 @@ static struct dentry *get_xa_file_dentry
} else if (flags & XATTR_REPLACE || flags & FL_READONLY) {
goto out;
} else {
- /* inode->i_mutex is down, so nothing else can try to create
+ /* inode->i_mutex is locked, so nothing else can try to create
* the same xattr */
err = xadir->d_inode->i_op->create(xadir->d_inode, xafile,
0700 | S_IFREG, NULL);
@@ -480,7 +480,7 @@ static inline __u32 xattr_hash(const cha
/* Generic extended attribute operations that can be used by xa plugins */
/*
- * inode->i_mutex: down
+ * inode->i_mutex: locked
*/
int
reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
@@ -606,7 +606,7 @@ reiserfs_xattr_set(struct inode *inode,
}
/*
- * inode->i_mutex: down
+ * inode->i_mutex: locked
*/
int
reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
@@ -793,7 +793,7 @@ reiserfs_delete_xattrs_filler(void *buf,
}
-/* This is called w/ inode->i_mutex downed */
+/* This is called w/ inode->i_mutex locked */
int reiserfs_delete_xattrs(struct inode *inode)
{
struct file *fp;
@@ -946,7 +946,7 @@ int reiserfs_chown_xattrs(struct inode *
/*
* Inode operation getxattr()
- * Preliminary locking: we down dentry->d_inode->i_mutex
+ * Preliminary locking: we lock dentry->d_inode->i_mutex
*/
ssize_t
reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
@@ -970,7 +970,7 @@ reiserfs_getxattr(struct dentry * dentry
/*
* Inode operation setxattr()
*
- * dentry->d_inode->i_mutex down
+ * dentry->d_inode->i_mutex locked
*/
int
reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
@@ -1008,7 +1008,7 @@ reiserfs_setxattr(struct dentry *dentry,
/*
* Inode operation removexattr()
*
- * dentry->d_inode->i_mutex down
+ * dentry->d_inode->i_mutex locked
*/
int reiserfs_removexattr(struct dentry *dentry, const char *name)
{
@@ -1091,7 +1091,7 @@ reiserfs_listxattr_filler(void *buf, con
/*
* Inode operation listxattr()
*
- * Preliminary locking: we down dentry->d_inode->i_mutex
+ * Preliminary locking: we lock dentry->d_inode->i_mutex
*/
ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
{
Index: linux/fs/reiserfs/xattr_acl.c
===================================================================
--- linux.orig/fs/reiserfs/xattr_acl.c
+++ linux/fs/reiserfs/xattr_acl.c
@@ -174,7 +174,7 @@ static void *posix_acl_to_disk(const str
/*
* Inode operation get_posix_acl().
*
- * inode->i_sem: down
+ * inode->i_mutex: locked
* BKL held [before 2.5.x]
*/
struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
@@ -237,7 +237,7 @@ struct posix_acl *reiserfs_get_acl(struc
/*
* Inode operation set_posix_acl().
*
- * inode->i_sem: down
+ * inode->i_mutex: locked
* BKL held [before 2.5.x]
*/
static int
@@ -312,7 +312,7 @@ reiserfs_set_acl(struct inode *inode, in
return error;
}
-/* dir->i_sem: down,
+/* dir->i_mutex: locked,
* inode is new and not released into the wild yet */
int
reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
Index: linux/fs/sysfs/inode.c
===================================================================
--- linux.orig/fs/sysfs/inode.c
+++ linux/fs/sysfs/inode.c
@@ -201,7 +201,7 @@ const unsigned char * sysfs_get_name(str
/*
* Unhashes the dentry corresponding to given sysfs_dirent
- * Called with parent inode's i_sem held.
+ * Called with parent inode's i_mutex held.
*/
void sysfs_drop_dentry(struct sysfs_dirent * sd, struct dentry * parent)
{
Index: linux/fs/xfs/linux-2.6/xfs_iops.c
===================================================================
--- linux.orig/fs/xfs/linux-2.6/xfs_iops.c
+++ linux/fs/xfs/linux-2.6/xfs_iops.c
@@ -203,7 +203,7 @@ validate_fields(
ip->i_nlink = va.va_nlink;
ip->i_blocks = va.va_nblocks;
- /* we're under i_sem so i_size can't change under us */
+ /* we're under i_mutex so i_size can't change under us */
if (i_size_read(ip) != va.va_size)
i_size_write(ip, va.va_size);
}
Index: linux/fs/xfs/linux-2.6/xfs_lrw.c
===================================================================
--- linux.orig/fs/xfs/linux-2.6/xfs_lrw.c
+++ linux/fs/xfs/linux-2.6/xfs_lrw.c
@@ -686,7 +686,7 @@ start:
int dmflags = FILP_DELAY_FLAG(file);
if (need_isem)
- dmflags |= DM_FLAGS_ISEM;
+ dmflags |= DM_FLAGS_IMUTEX;
xfs_iunlock(xip, XFS_ILOCK_EXCL);
error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
Index: linux/fs/xfs/xfs_dmapi.h
===================================================================
--- linux.orig/fs/xfs/xfs_dmapi.h
+++ linux/fs/xfs/xfs_dmapi.h
@@ -152,7 +152,7 @@ typedef enum {
#define DM_FLAGS_NDELAY 0x001 /* return EAGAIN after dm_pending() */
#define DM_FLAGS_UNWANTED 0x002 /* event not in fsys dm_eventset_t */
-#define DM_FLAGS_ISEM 0x004 /* thread holds i_sem */
+#define DM_FLAGS_IMUTEX 0x004 /* thread holds i_mutex */
#define DM_FLAGS_IALLOCSEM_RD 0x010 /* thread holds i_alloc_sem rd */
#define DM_FLAGS_IALLOCSEM_WR 0x020 /* thread holds i_alloc_sem wr */
@@ -161,21 +161,21 @@ typedef enum {
*/
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
- DM_FLAGS_ISEM : 0)
-#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+ DM_FLAGS_IMUTEX : 0)
+#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUTEX)
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \
(LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,22))
#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
- DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_ISEM)
-#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+ DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_IMUTEX)
+#define DM_SEM_FLAG_WR (DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUTEX)
#endif
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,21)
#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
- 0 : DM_FLAGS_ISEM)
-#define DM_SEM_FLAG_WR (DM_FLAGS_ISEM)
+ 0 : DM_FLAGS_IMUTEX)
+#define DM_SEM_FLAG_WR (DM_FLAGS_IMUTEX)
#endif
Index: linux/include/linux/ext3_fs_i.h
===================================================================
--- linux.orig/include/linux/ext3_fs_i.h
+++ linux/include/linux/ext3_fs_i.h
@@ -87,7 +87,7 @@ struct ext3_inode_info {
#ifdef CONFIG_EXT3_FS_XATTR
/*
* Extended attributes can be read independently of the main file
- * data. Taking i_sem even when reading would cause contention
+ * data. Taking i_mutex even when reading would cause contention
* between readers of EAs and writers of regular file data, so
* instead we synchronize on xattr_sem when reading or changing
* EAs.
Index: linux/include/linux/fs.h
===================================================================
--- linux.orig/include/linux/fs.h
+++ linux/include/linux/fs.h
@@ -1160,7 +1160,7 @@ int sync_inode(struct inode *inode, stru
* directory. The name should be stored in the @name (with the
* understanding that it is already pointing to a a %NAME_MAX+1 sized
* buffer. get_name() should return %0 on success, a negative error code
- * or error. @get_name will be called without @parent->i_sem held.
+ * or error. @get_name will be called without @parent->i_mutex held.
*
* get_parent:
* @get_parent should find the parent directory for the given @child which
@@ -1182,7 +1182,7 @@ int sync_inode(struct inode *inode, stru
* nfsd_find_fh_dentry() in either the @obj or @parent parameters.
*
* Locking rules:
- * get_parent is called with child->d_inode->i_sem down
+ * get_parent is called with child->d_inode->i_mutex locked
* get_name is not (which is possibly inconsistent)
*/
Index: linux/include/linux/jffs2_fs_i.h
===================================================================
--- linux.orig/include/linux/jffs2_fs_i.h
+++ linux/include/linux/jffs2_fs_i.h
@@ -8,11 +8,11 @@
#include <asm/semaphore.h>
struct jffs2_inode_info {
- /* We need an internal semaphore similar to inode->i_sem.
+ /* We need an internal semaphore similar to inode->i_mutex.
Unfortunately, we can't used the existing one, because
either the GC would deadlock, or we'd have to release it
before letting GC proceed. Or we'd have to put ugliness
- into the GC code so it didn't attempt to obtain the i_sem
+ into the GC code so it didn't attempt to obtain the i_mutex
for the inode(s) which are already locked */
struct semaphore sem;
Index: linux/include/linux/nfsd/nfsfh.h
===================================================================
--- linux.orig/include/linux/nfsd/nfsfh.h
+++ linux/include/linux/nfsd/nfsfh.h
@@ -294,7 +294,7 @@ fill_post_wcc(struct svc_fh *fhp)
/*
* Lock a file handle/inode
* NOTE: both fh_lock and fh_unlock are done "by hand" in
- * vfs.c:nfsd_rename as it needs to grab 2 i_sem's at once
+ * vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once
* so, any changes here should be reflected there.
*/
static inline void
Index: linux/include/linux/reiserfs_fs.h
===================================================================
--- linux.orig/include/linux/reiserfs_fs.h
+++ linux/include/linux/reiserfs_fs.h
@@ -1857,7 +1857,7 @@ void padd_item(char *item, int total_len
#define GET_BLOCK_CREATE 1 /* add anything you need to find block */
#define GET_BLOCK_NO_HOLE 2 /* return -ENOENT for file holes */
#define GET_BLOCK_READ_DIRECT 4 /* read the tail if indirect item not found */
-#define GET_BLOCK_NO_ISEM 8 /* i_sem is not held, don't preallocate */
+#define GET_BLOCK_NO_IMUTEX 8 /* i_mutex is not held, don't preallocate */
#define GET_BLOCK_NO_DANGLE 16 /* don't leave any transactions running */
int restart_transaction(struct reiserfs_transaction_handle *th,
Index: linux/ipc/mqueue.c
===================================================================
--- linux.orig/ipc/mqueue.c
+++ linux/ipc/mqueue.c
@@ -660,7 +660,7 @@ asmlinkage long sys_mq_open(const char _
if (fd < 0)
goto out_putname;
- down(&mqueue_mnt->mnt_root->d_inode->i_sem);
+ mutex_lock(&mqueue_mnt->mnt_root->d_inode->i_mutex);
dentry = lookup_one_len(name, mqueue_mnt->mnt_root, strlen(name));
if (IS_ERR(dentry)) {
error = PTR_ERR(dentry);
@@ -697,7 +697,7 @@ out_putfd:
out_err:
fd = error;
out_upsem:
- up(&mqueue_mnt->mnt_root->d_inode->i_sem);
+ mutex_unlock(&mqueue_mnt->mnt_root->d_inode->i_mutex);
out_putname:
putname(name);
return fd;
@@ -714,7 +714,7 @@ asmlinkage long sys_mq_unlink(const char
if (IS_ERR(name))
return PTR_ERR(name);
- down(&mqueue_mnt->mnt_root->d_inode->i_sem);
+ mutex_lock(&mqueue_mnt->mnt_root->d_inode->i_mutex);
dentry = lookup_one_len(name, mqueue_mnt->mnt_root, strlen(name));
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
@@ -735,7 +735,7 @@ out_err:
dput(dentry);
out_unlock:
- up(&mqueue_mnt->mnt_root->d_inode->i_sem);
+ mutex_unlock(&mqueue_mnt->mnt_root->d_inode->i_mutex);
putname(name);
if (inode)
iput(inode);
Index: linux/kernel/cpuset.c
===================================================================
--- linux.orig/kernel/cpuset.c
+++ linux/kernel/cpuset.c
@@ -1211,7 +1211,7 @@ static int cpuset_add_file(struct dentry
struct dentry *dentry;
int error;
- down(&dir->d_inode->i_sem);
+ mutex_lock(&dir->d_inode->i_mutex);
dentry = cpuset_get_dentry(dir, cft->name);
if (!IS_ERR(dentry)) {
error = cpuset_create_file(dentry, 0644 | S_IFREG);
@@ -1220,7 +1220,7 @@ static int cpuset_add_file(struct dentry
dput(dentry);
} else
error = PTR_ERR(dentry);
- up(&dir->d_inode->i_sem);
+ mutex_unlock(&dir->d_inode->i_mutex);
return error;
}
@@ -1470,7 +1470,7 @@ static long cpuset_create(struct cpuset
/*
* Release manage_sem before cpuset_populate_dir() because it
- * will down() this new directory's i_sem and if we race with
+ * will mutex_lock() this new directory's i_mutex and if we race with
* another mkdir, we might deadlock.
*/
up(&manage_sem);
@@ -1489,7 +1489,7 @@ static int cpuset_mkdir(struct inode *di
{
struct cpuset *c_parent = dentry->d_parent->d_fsdata;
- /* the vfs holds inode->i_sem already */
+ /* the vfs holds inode->i_mutex already */
return cpuset_create(c_parent, dentry->d_name.name, mode | S_IFDIR);
}
@@ -1500,7 +1500,7 @@ static int cpuset_rmdir(struct inode *un
struct cpuset *parent;
char *pathbuf = NULL;
- /* the vfs holds both inode->i_sem already */
+ /* the vfs holds both inode->i_mutex already */
down(&manage_sem);
refresh_mems();
Index: linux/mm/filemap.c
===================================================================
--- linux.orig/mm/filemap.c
+++ linux/mm/filemap.c
@@ -61,7 +61,7 @@ generic_file_direct_IO(int rw, struct ki
* ->swap_lock (exclusive_swap_page, others)
* ->mapping->tree_lock
*
- * ->i_sem
+ * ->i_mutex
* ->i_mmap_lock (truncate->unmap_mapping_range)
*
* ->mmap_sem
@@ -73,9 +73,9 @@ generic_file_direct_IO(int rw, struct ki
* ->lock_page (access_process_vm)
*
* ->mmap_sem
- * ->i_sem (msync)
+ * ->i_mutex (msync)
*
- * ->i_sem
+ * ->i_mutex
* ->i_alloc_sem (various)
*
* ->inode_lock
@@ -276,7 +276,7 @@ static int wait_on_page_writeback_range(
* integrity" operation. It waits upon in-flight writeout before starting and
* waiting upon new writeout. If there was an IO error, return it.
*
- * We need to re-take i_sem during the generic_osync_inode list walk because
+ * We need to re-take i_mutex during the generic_osync_inode list walk because
* it is otherwise livelockable.
*/
int sync_page_range(struct inode *inode, struct address_space *mapping,
@@ -301,7 +301,7 @@ int sync_page_range(struct inode *inode,
EXPORT_SYMBOL(sync_page_range);
/*
- * Note: Holding i_sem across sync_page_range_nolock is not a good idea
+ * Note: Holding i_mutex across sync_page_range_nolock is not a good idea
* as it forces O_SYNC writers to different parts of the same file
* to be serialised right until io completion.
*/
@@ -1858,7 +1858,7 @@ generic_file_direct_write(struct kiocb *
/*
* Sync the fs metadata but not the minor inode changes and
* of course not the data as we did direct DMA for the IO.
- * i_sem is held, which protects generic_osync_inode() from
+ * i_mutex is held, which protects generic_osync_inode() from
* livelocking.
*/
if (written >= 0 && ((file->f_flags & O_SYNC) || IS_SYNC(inode))) {
@@ -2230,7 +2230,7 @@ ssize_t generic_file_writev(struct file
EXPORT_SYMBOL(generic_file_writev);
/*
- * Called under i_sem for writes to S_ISREG files. Returns -EIO if something
+ * Called under i_mutex for writes to S_ISREG files. Returns -EIO if something
* went wrong during pagecache shootdown.
*/
static ssize_t
Index: linux/mm/filemap_xip.c
===================================================================
--- linux.orig/mm/filemap_xip.c
+++ linux/mm/filemap_xip.c
@@ -358,7 +358,7 @@ xip_file_write(struct file *filp, const
loff_t pos;
ssize_t ret;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
if (!access_ok(VERIFY_READ, buf, len)) {
ret=-EFAULT;
@@ -390,7 +390,7 @@ xip_file_write(struct file *filp, const
out_backing:
current->backing_dev_info = NULL;
out_up:
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(xip_file_write);
Index: linux/mm/msync.c
===================================================================
--- linux.orig/mm/msync.c
+++ linux/mm/msync.c
@@ -137,7 +137,7 @@ static int msync_interval(struct vm_area
ret = filemap_fdatawrite(mapping);
if (file->f_op && file->f_op->fsync) {
/*
- * We don't take i_sem here because mmap_sem
+ * We don't take i_mutex here because mmap_sem
* is already held.
*/
err = file->f_op->fsync(file,file->f_dentry,1);
Index: linux/mm/rmap.c
===================================================================
--- linux.orig/mm/rmap.c
+++ linux/mm/rmap.c
@@ -20,13 +20,13 @@
/*
* Lock ordering in mm:
*
- * inode->i_sem (while writing or truncating, not reading or faulting)
+ * inode->i_mutex (while writing or truncating, not reading or faulting)
* inode->i_alloc_sem
*
* When a page fault occurs in writing from user to file, down_read
- * of mmap_sem nests within i_sem; in sys_msync, i_sem nests within
- * down_read of mmap_sem; i_sem and down_write of mmap_sem are never
- * taken together; in truncation, i_sem is taken outermost.
+ * of mmap_sem nests within i_mutex; in sys_msync, i_mutex nests within
+ * down_read of mmap_sem; i_mutex and down_write of mmap_sem are never
+ * taken together; in truncation, i_mutex is taken outermost.
*
* mm->mmap_sem
* page->flags PG_locked (lock_page)
Index: linux/mm/shmem.c
===================================================================
--- linux.orig/mm/shmem.c
+++ linux/mm/shmem.c
@@ -1476,7 +1476,7 @@ static void do_shmem_file_read(struct fi
/*
* We must evaluate after, since reads (unlike writes)
- * are called without i_sem protection against truncate
+ * are called without i_mutex protection against truncate
*/
nr = PAGE_CACHE_SIZE;
i_size = i_size_read(inode);
Index: linux/mm/truncate.c
===================================================================
--- linux.orig/mm/truncate.c
+++ linux/mm/truncate.c
@@ -102,7 +102,7 @@ invalidate_complete_page(struct address_
* mapping is large, it is probably the case that the final pages are the most
* recently touched, and freeing happens in ascending file offset order.
*
- * Called under (and serialised by) inode->i_sem.
+ * Called under (and serialised by) inode->i_mutex.
*/
void truncate_inode_pages(struct address_space *mapping, loff_t lstart)
{
Index: linux/security/inode.c
===================================================================
--- linux.orig/security/inode.c
+++ linux/security/inode.c
@@ -172,7 +172,7 @@ static int create_by_name(const char *na
return -EFAULT;
}
- down(&parent->d_inode->i_sem);
+ mutex_lock(&parent->d_inode->i_mutex);
*dentry = lookup_one_len(name, parent, strlen(name));
if (!IS_ERR(dentry)) {
if ((mode & S_IFMT) == S_IFDIR)
@@ -181,7 +181,7 @@ static int create_by_name(const char *na
error = create(parent->d_inode, *dentry, mode);
} else
error = PTR_ERR(dentry);
- up(&parent->d_inode->i_sem);
+ mutex_unlock(&parent->d_inode->i_mutex);
return error;
}
@@ -302,7 +302,7 @@ void securityfs_remove(struct dentry *de
if (!parent || !parent->d_inode)
return;
- down(&parent->d_inode->i_sem);
+ mutex_lock(&parent->d_inode->i_mutex);
if (positive(dentry)) {
if (dentry->d_inode) {
if (S_ISDIR(dentry->d_inode->i_mode))
@@ -312,7 +312,7 @@ void securityfs_remove(struct dentry *de
dput(dentry);
}
}
- up(&parent->d_inode->i_sem);
+ mutex_unlock(&parent->d_inode->i_mutex);
simple_release_fs(&mount, &mount_count);
}
EXPORT_SYMBOL_GPL(securityfs_remove);
Index: linux/sound/core/oss/pcm_oss.c
===================================================================
--- linux.orig/sound/core/oss/pcm_oss.c
+++ linux/sound/core/oss/pcm_oss.c
@@ -2141,9 +2141,9 @@ static ssize_t snd_pcm_oss_write(struct
substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
if (substream == NULL)
return -ENXIO;
- up(&file->f_dentry->d_inode->i_sem);
+ mutex_unlock(&file->f_dentry->d_inode->i_mutex);
result = snd_pcm_oss_write1(substream, buf, count);
- down(&file->f_dentry->d_inode->i_sem);
+ mutex_lock(&file->f_dentry->d_inode->i_mutex);
#ifdef OSS_DEBUG
printk("pcm_oss: write %li bytes (wrote %li bytes)\n", (long)count, (long)result);
#endif
Index: linux/sound/core/seq/seq_memory.c
===================================================================
--- linux.orig/sound/core/seq/seq_memory.c
+++ linux/sound/core/seq/seq_memory.c
@@ -32,10 +32,6 @@
#include "seq_info.h"
#include "seq_lock.h"
-/* semaphore in struct file record */
-#define semaphore_of(fp) ((fp)->f_dentry->d_inode->i_sem)
-
-
static inline int snd_seq_pool_available(pool_t *pool)
{
return pool->total_elements - atomic_read(&pool->counter);
-
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