From: Fabian Frederick <fabf@xxxxxxxxx> Subject: coda: ftoc validity check integration This patch moves cfi check in coda_ftoc() instead of repeating it in the wild. Module size text data bss dec hex filename 28297 1040 700 30037 7555 fs/coda/coda.ko.before 28263 980 700 29943 74f7 fs/coda/coda.ko.after Link: http://lkml.kernel.org/r/a2c27663ec4547018c92d71c63b1dff4650b6546.1558117389.git.jaharkes@xxxxxxxxxx Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx> Signed-off-by: Jan Harkes <jaharkes@xxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Colin Ian King <colin.king@xxxxxxxxxxxxx> Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Cc: David Howells <dhowells@xxxxxxxxxx> Cc: Mikko Rapeli <mikko.rapeli@xxxxxx> Cc: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Cc: Yann Droneaud <ydroneaud@xxxxxxxxxx> Cc: Zhouyang Jia <jiazhouyang09@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/coda/cnode.c | 10 ++++++++++ fs/coda/coda_fs_i.h | 3 +-- fs/coda/dir.c | 6 ++---- fs/coda/file.c | 17 +++++------------ 4 files changed, 18 insertions(+), 18 deletions(-) --- a/fs/coda/cnode.c~coda-ftoc-validity-check-integration +++ a/fs/coda/cnode.c @@ -148,6 +148,16 @@ struct inode *coda_fid_to_inode(struct C return inode; } +struct coda_file_info *coda_ftoc(struct file *file) +{ + struct coda_file_info *cfi = file->private_data; + + BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + + return cfi; + +} + /* the CONTROL inode is made without asking attributes from Venus */ struct inode *coda_cnode_makectl(struct super_block *sb) { --- a/fs/coda/coda_fs_i.h~coda-ftoc-validity-check-integration +++ a/fs/coda/coda_fs_i.h @@ -42,8 +42,6 @@ struct coda_file_info { unsigned int cfi_mapcount; /* nr of times this file is mapped */ }; -#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data)) - /* flags */ #define C_VATTR 0x1 /* Validity of vattr in inode */ #define C_FLUSH 0x2 /* used after a flush */ @@ -54,6 +52,7 @@ struct inode *coda_cnode_make(struct Cod struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr); struct inode *coda_cnode_makectl(struct super_block *sb); struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb); +struct coda_file_info *coda_ftoc(struct file *file); void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *); #endif --- a/fs/coda/dir.c~coda-ftoc-validity-check-integration +++ a/fs/coda/dir.c @@ -356,8 +356,7 @@ static int coda_venus_readdir(struct fil ino_t ino; int ret; - cfi = CODA_FTOC(coda_file); - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + cfi = coda_ftoc(coda_file); host_file = cfi->cfi_container; cii = ITOC(file_inode(coda_file)); @@ -426,8 +425,7 @@ static int coda_readdir(struct file *cod struct file *host_file; int ret; - cfi = CODA_FTOC(coda_file); - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + cfi = coda_ftoc(coda_file); host_file = cfi->cfi_container; if (host_file->f_op->iterate || host_file->f_op->iterate_shared) { --- a/fs/coda/file.c~coda-ftoc-validity-check-integration +++ a/fs/coda/file.c @@ -37,9 +37,7 @@ static ssize_t coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to) { struct file *coda_file = iocb->ki_filp; - struct coda_file_info *cfi = CODA_FTOC(coda_file); - - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + struct coda_file_info *cfi = coda_ftoc(coda_file); return vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos, 0); } @@ -49,12 +47,10 @@ coda_file_write_iter(struct kiocb *iocb, { struct file *coda_file = iocb->ki_filp; struct inode *coda_inode = file_inode(coda_file); - struct coda_file_info *cfi = CODA_FTOC(coda_file); + struct coda_file_info *cfi = coda_ftoc(coda_file); struct file *host_file; ssize_t ret; - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); - host_file = cfi->cfi_container; file_start_write(host_file); inode_lock(coda_inode); @@ -105,8 +101,7 @@ coda_file_mmap(struct file *coda_file, s struct coda_vm_ops *cvm_ops; int ret; - cfi = CODA_FTOC(coda_file); - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + cfi = coda_ftoc(coda_file); host_file = cfi->cfi_container; if (!host_file->f_op->mmap) @@ -208,8 +203,7 @@ int coda_release(struct inode *coda_inod struct inode *host_inode; int err; - cfi = CODA_FTOC(coda_file); - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + cfi = coda_ftoc(coda_file); err = venus_close(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags, coda_file->f_cred->fsuid); @@ -251,8 +245,7 @@ int coda_fsync(struct file *coda_file, l return err; inode_lock(coda_inode); - cfi = CODA_FTOC(coda_file); - BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + cfi = coda_ftoc(coda_file); host_file = cfi->cfi_container; err = vfs_fsync(host_file, datasync); _
