From 4acf381e1b6c01d6058d353191259c952bd6f3e7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 17 May 2013 22:42:17 -0400 Subject: [readdir] convert reiserfs Signed-off-by: Al Viro --- fs/reiserfs/dir.c | 26 +++++++++++--------------- fs/reiserfs/reiserfs.h | 2 +- fs/reiserfs/xattr.c | 14 +++++++------- 3 files changed, 19 insertions(+), 23 deletions(-) (limited to 'fs/reiserfs') diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c index 6c2d136561cb..cba70165e9c5 100644 --- a/fs/reiserfs/dir.c +++ b/fs/reiserfs/dir.c @@ -13,14 +13,14 @@ extern const struct reiserfs_key MIN_KEY; -static int reiserfs_readdir(struct file *, void *, filldir_t); +static int reiserfs_readdir(struct file *, struct dir_context *); static int reiserfs_dir_fsync(struct file *filp, loff_t start, loff_t end, int datasync); const struct file_operations reiserfs_dir_operations = { .llseek = generic_file_llseek, .read = generic_read_dir, - .readdir = reiserfs_readdir, + .iterate = reiserfs_readdir, .fsync = reiserfs_dir_fsync, .unlocked_ioctl = reiserfs_ioctl, #ifdef CONFIG_COMPAT @@ -58,8 +58,7 @@ static inline bool is_privroot_deh(struct dentry *dir, deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid); } -int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, - filldir_t filldir, loff_t *pos) +int reiserfs_readdir_dentry(struct dentry *dentry, struct dir_context *ctx) { struct inode *inode = dentry->d_inode; struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */ @@ -81,7 +80,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, /* form key for search the next directory entry using f_pos field of file structure */ - make_cpu_key(&pos_key, inode, *pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3); + make_cpu_key(&pos_key, inode, ctx->pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3); next_pos = cpu_key_k_offset(&pos_key); path_to_entry.reada = PATH_READA; @@ -126,7 +125,6 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, entry_num++, deh++) { int d_reclen; char *d_name; - off_t d_off; ino_t d_ino; if (!de_visible(deh)) @@ -158,8 +156,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, if (is_privroot_deh(dentry, deh)) continue; - d_off = deh_offset(deh); - *pos = d_off; + ctx->pos = deh_offset(deh); d_ino = deh_objectid(deh); if (d_reclen <= 32) { local_buf = small_buf; @@ -187,9 +184,9 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, * the write lock here for other waiters */ reiserfs_write_unlock(inode->i_sb); - if (filldir - (dirent, local_buf, d_reclen, d_off, d_ino, - DT_UNKNOWN) < 0) { + if (!dir_emit + (ctx, local_buf, d_reclen, d_ino, + DT_UNKNOWN)) { reiserfs_write_lock(inode->i_sb); if (local_buf != small_buf) { kfree(local_buf); @@ -237,7 +234,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent, } /* while */ end: - *pos = next_pos; + ctx->pos = next_pos; pathrelse(&path_to_entry); reiserfs_check_path(&path_to_entry); out: @@ -245,10 +242,9 @@ out: return ret; } -static int reiserfs_readdir(struct file *file, void *dirent, filldir_t filldir) +static int reiserfs_readdir(struct file *file, struct dir_context *ctx) { - struct dentry *dentry = file->f_path.dentry; - return reiserfs_readdir_dentry(dentry, dirent, filldir, &file->f_pos); + return reiserfs_readdir_dentry(file->f_path.dentry, ctx); } /* compose directory item containing "." and ".." entries (entries are diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h index 157e474ab303..27e0ba000334 100644 --- a/fs/reiserfs/reiserfs.h +++ b/fs/reiserfs/reiserfs.h @@ -2709,7 +2709,7 @@ extern const struct inode_operations reiserfs_dir_inode_operations; extern const struct inode_operations reiserfs_symlink_inode_operations; extern const struct inode_operations reiserfs_special_inode_operations; extern const struct file_operations reiserfs_dir_operations; -int reiserfs_readdir_dentry(struct dentry *, void *, filldir_t, loff_t *); +int reiserfs_readdir_dentry(struct dentry *, struct dir_context *); /* tail_conversion.c */ int direct2indirect(struct reiserfs_transaction_handle *, struct inode *, diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 821bcf70e467..26648a451e87 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -171,6 +171,7 @@ static struct dentry *open_xa_dir(const struct inode *inode, int flags) * modifying extended attributes. This includes operations such as permissions * or ownership changes, object deletions, etc. */ struct reiserfs_dentry_buf { + struct dir_context ctx; struct dentry *xadir; int count; struct dentry *dentries[8]; @@ -223,9 +224,8 @@ static int reiserfs_for_each_xattr(struct inode *inode, { struct dentry *dir; int i, err = 0; - loff_t pos = 0; struct reiserfs_dentry_buf buf = { - .count = 0, + .ctx.actor = fill_with_dentries, }; /* Skip out, an xattr has no xattrs associated with it */ @@ -249,7 +249,7 @@ static int reiserfs_for_each_xattr(struct inode *inode, reiserfs_write_lock(inode->i_sb); buf.xadir = dir; - err = reiserfs_readdir_dentry(dir, &buf, fill_with_dentries, &pos); + err = reiserfs_readdir_dentry(dir, &buf.ctx); while ((err == 0 || err == -ENOSPC) && buf.count) { err = 0; @@ -266,8 +266,7 @@ static int reiserfs_for_each_xattr(struct inode *inode, } buf.count = 0; if (!err) - err = reiserfs_readdir_dentry(dir, &buf, - fill_with_dentries, &pos); + err = reiserfs_readdir_dentry(dir, &buf.ctx); } mutex_unlock(&dir->d_inode->i_mutex); @@ -800,6 +799,7 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name) } struct listxattr_buf { + struct dir_context ctx; size_t size; size_t pos; char *buf; @@ -845,8 +845,8 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size) { struct dentry *dir; int err = 0; - loff_t pos = 0; struct listxattr_buf buf = { + .ctx.actor = listxattr_filler, .dentry = dentry, .buf = buffer, .size = buffer ? size : 0, @@ -868,7 +868,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size) } mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR); - err = reiserfs_readdir_dentry(dir, &buf, listxattr_filler, &pos); + err = reiserfs_readdir_dentry(dir, &buf.ctx); mutex_unlock(&dir->d_inode->i_mutex); if (!err) -- cgit v1.2.3 From 99ce4169a9ff1c6ecdcccf01638eb6d76e5d84d1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 17 May 2013 22:45:29 -0400 Subject: reiserfs: is_privroot_deh() needs only directory inode, actually ... and that - only to get the superblock. Privroot is a directory and we don't allow hardlinks to those... Signed-off-by: Al Viro --- fs/reiserfs/dir.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'fs/reiserfs') diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c index cba70165e9c5..df25fff3714a 100644 --- a/fs/reiserfs/dir.c +++ b/fs/reiserfs/dir.c @@ -50,11 +50,10 @@ static int reiserfs_dir_fsync(struct file *filp, loff_t start, loff_t end, #define store_ih(where,what) copy_item_head (where, what) -static inline bool is_privroot_deh(struct dentry *dir, - struct reiserfs_de_head *deh) +static inline bool is_privroot_deh(struct inode *dir, struct reiserfs_de_head *deh) { - struct dentry *privroot = REISERFS_SB(dir->d_sb)->priv_root; - return (dir == dir->d_parent && privroot->d_inode && + struct dentry *privroot = REISERFS_SB(dir->i_sb)->priv_root; + return (privroot->d_inode && deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid); } @@ -153,7 +152,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, struct dir_context *ctx) } /* Ignore the .reiserfs_priv entry */ - if (is_privroot_deh(dentry, deh)) + if (is_privroot_deh(inode, deh)) continue; ctx->pos = deh_offset(deh); -- cgit v1.2.3 From cd62cdae0bd7fb76cae66347dc4fc00e87ffc1c4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 17 May 2013 22:58:58 -0400 Subject: reiserfs: switch reiserfs_readdir_dentry to inode ... and clean the callers up a bit Signed-off-by: Al Viro --- fs/reiserfs/dir.c | 5 ++--- fs/reiserfs/reiserfs.h | 2 +- fs/reiserfs/xattr.c | 25 ++++++++++++------------- 3 files changed, 15 insertions(+), 17 deletions(-) (limited to 'fs/reiserfs') diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c index df25fff3714a..03e4ca5624d6 100644 --- a/fs/reiserfs/dir.c +++ b/fs/reiserfs/dir.c @@ -57,9 +57,8 @@ static inline bool is_privroot_deh(struct inode *dir, struct reiserfs_de_head *d deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid); } -int reiserfs_readdir_dentry(struct dentry *dentry, struct dir_context *ctx) +int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx) { - struct inode *inode = dentry->d_inode; struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */ INITIALIZE_PATH(path_to_entry); struct buffer_head *bh; @@ -243,7 +242,7 @@ out: static int reiserfs_readdir(struct file *file, struct dir_context *ctx) { - return reiserfs_readdir_dentry(file->f_path.dentry, ctx); + return reiserfs_readdir_inode(file_inode(file), ctx); } /* compose directory item containing "." and ".." entries (entries are diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h index 27e0ba000334..3df5ce6c724d 100644 --- a/fs/reiserfs/reiserfs.h +++ b/fs/reiserfs/reiserfs.h @@ -2709,7 +2709,7 @@ extern const struct inode_operations reiserfs_dir_inode_operations; extern const struct inode_operations reiserfs_symlink_inode_operations; extern const struct inode_operations reiserfs_special_inode_operations; extern const struct file_operations reiserfs_dir_operations; -int reiserfs_readdir_dentry(struct dentry *, struct dir_context *); +int reiserfs_readdir_inode(struct inode *, struct dir_context *); /* tail_conversion.c */ int direct2indirect(struct reiserfs_transaction_handle *, struct inode *, diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 26648a451e87..c69cdd749f09 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -249,28 +249,27 @@ static int reiserfs_for_each_xattr(struct inode *inode, reiserfs_write_lock(inode->i_sb); buf.xadir = dir; - err = reiserfs_readdir_dentry(dir, &buf.ctx); - while ((err == 0 || err == -ENOSPC) && buf.count) { - err = 0; - - for (i = 0; i < buf.count && buf.dentries[i]; i++) { - int lerr = 0; + while (1) { + err = reiserfs_readdir_inode(dir->d_inode, &buf.ctx); + if (err) + break; + if (!buf.count) + break; + for (i = 0; !err && i < buf.count && buf.dentries[i]; i++) { struct dentry *dentry = buf.dentries[i]; - if (err == 0 && !S_ISDIR(dentry->d_inode->i_mode)) - lerr = action(dentry, data); + if (!S_ISDIR(dentry->d_inode->i_mode)) + err = action(dentry, data); dput(dentry); buf.dentries[i] = NULL; - err = lerr ?: err; } + if (err) + break; buf.count = 0; - if (!err) - err = reiserfs_readdir_dentry(dir, &buf.ctx); } mutex_unlock(&dir->d_inode->i_mutex); - /* Clean up after a failed readdir */ cleanup_dentry_buf(&buf); if (!err) { @@ -868,7 +867,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size) } mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR); - err = reiserfs_readdir_dentry(dir, &buf.ctx); + err = reiserfs_readdir_inode(dir->d_inode, &buf.ctx); mutex_unlock(&dir->d_inode->i_mutex); if (!err) -- cgit v1.2.3