A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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wrappers for ->i_mutex access

Browse source 
parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2016-01-22 15:40:57 -05:00
commit 5955102c99
177 changed files with 908 additions and 883 deletions
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8
fs/ncpfs/dir.c
View file

@ -369,7 +369,7 @@ ncp_lookup_validate(struct dentry *dentry, unsigned int flags)
if (!res) {
struct inode *inode = d_inode(dentry);
mutex_lock(&inode->i_mutex);
inode_lock(inode);
if (finfo.i.dirEntNum == NCP_FINFO(inode)->dirEntNum) {
ncp_new_dentry(dentry);
val=1;
@ -377,7 +377,7 @@ ncp_lookup_validate(struct dentry *dentry, unsigned int flags)
ncp_dbg(2, "found, but dirEntNum changed\n");
ncp_update_inode2(inode, &finfo);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
}
finished:
@ -639,9 +639,9 @@ ncp_fill_cache(struct file *file, struct dir_context *ctx,
} else {
struct inode *inode = d_inode(newdent);
mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
inode_lock_nested(inode, I_MUTEX_CHILD);
ncp_update_inode2(inode, entry);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
}
if (ctl.idx >= NCP_DIRCACHE_SIZE) {

4
fs/ncpfs/file.c
View file

@ -224,10 +224,10 @@ ncp_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
iocb->ki_pos = pos;
if (pos > i_size_read(inode)) {
mutex_lock(&inode->i_mutex);
inode_lock(inode);
if (pos > i_size_read(inode))
i_size_write(inode, pos);
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
}
ncp_dbg(1, "exit %pD2\n", file);
outrel: