summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2013-05-16 05:09:37 (GMT)
committerPawel Osmialowski <p.osmialowsk@mcdsrvbld02.digital.local>2015-03-27 13:37:34 (GMT)
commitc60667d1bdfe2ed8910d6a4da7e63d2799dd92dc (patch)
tree892e12b868b69f7770ef1dd98277e0144fa572d7
parent3661eb9bb1d5140fa2a9cbba8792527c1b9d763b (diff)
downloadlinux-3.10-c60667d1bdfe2ed8910d6a4da7e63d2799dd92dc.zip
linux-3.10-c60667d1bdfe2ed8910d6a4da7e63d2799dd92dc.tar.gz
linux-3.10-c60667d1bdfe2ed8910d6a4da7e63d2799dd92dc.tar.bz2
convert udf
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/udf/dir.c63
1 files changed, 26 insertions, 37 deletions
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index b3e93f5..a012c51 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -35,14 +35,16 @@
#include "udf_i.h"
#include "udf_sb.h"
-static int do_udf_readdir(struct inode *dir, struct file *filp,
- filldir_t filldir, void *dirent)
+
+static int udf_readdir(struct file *file, struct dir_context *ctx)
{
+ struct inode *dir = file_inode(file);
+ struct udf_inode_info *iinfo = UDF_I(dir);
struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL};
struct fileIdentDesc *fi = NULL;
struct fileIdentDesc cfi;
int block, iblock;
- loff_t nf_pos = (filp->f_pos - 1) << 2;
+ loff_t nf_pos;
int flen;
unsigned char *fname = NULL;
unsigned char *nameptr;
@@ -54,10 +56,14 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
uint32_t elen;
sector_t offset;
int i, num, ret = 0;
- unsigned int dt_type;
struct extent_position epos = { NULL, 0, {0, 0} };
- struct udf_inode_info *iinfo;
+ if (ctx->pos == 0) {
+ if (!dir_emit_dot(file, ctx))
+ return 0;
+ ctx->pos = 1;
+ }
+ nf_pos = (ctx->pos - 1) << 2;
if (nf_pos >= size)
goto out;
@@ -71,7 +77,6 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
nf_pos = udf_ext0_offset(dir);
fibh.soffset = fibh.eoffset = nf_pos & (dir->i_sb->s_blocksize - 1);
- iinfo = UDF_I(dir);
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits,
&epos, &eloc, &elen, &offset)
@@ -116,7 +121,9 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
}
while (nf_pos < size) {
- filp->f_pos = (nf_pos >> 2) + 1;
+ struct kernel_lb_addr tloc;
+
+ ctx->pos = (nf_pos >> 2) + 1;
fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
&elen, &offset);
@@ -155,24 +162,22 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
}
if (cfi.fileCharacteristics & FID_FILE_CHAR_PARENT) {
- iblock = parent_ino(filp->f_path.dentry);
- flen = 2;
- memcpy(fname, "..", flen);
- dt_type = DT_DIR;
- } else {
- struct kernel_lb_addr tloc = lelb_to_cpu(cfi.icb.extLocation);
-
- iblock = udf_get_lb_pblock(dir->i_sb, &tloc, 0);
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
- dt_type = DT_UNKNOWN;
+ if (!dir_emit_dotdot(file, ctx))
+ goto out;
+ continue;
}
- if (flen && filldir(dirent, fname, flen, filp->f_pos,
- iblock, dt_type) < 0)
+ flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ if (!flen)
+ continue;
+
+ tloc = lelb_to_cpu(cfi.icb.extLocation);
+ iblock = udf_get_lb_pblock(dir->i_sb, &tloc, 0);
+ if (!dir_emit(ctx, fname, flen, iblock, DT_UNKNOWN))
goto out;
} /* end while */
- filp->f_pos = (nf_pos >> 2) + 1;
+ ctx->pos = (nf_pos >> 2) + 1;
out:
if (fibh.sbh != fibh.ebh)
@@ -184,27 +189,11 @@ out:
return ret;
}
-static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
- struct inode *dir = file_inode(filp);
- int result;
-
- if (filp->f_pos == 0) {
- if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) {
- return 0;
- }
- filp->f_pos++;
- }
-
- result = do_udf_readdir(dir, filp, filldir, dirent);
- return result;
-}
-
/* readdir and lookup functions */
const struct file_operations udf_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
- .readdir = udf_readdir,
+ .iterate = udf_readdir,
.unlocked_ioctl = udf_ioctl,
.fsync = generic_file_fsync,
};