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-rw-r--r--fs/gfs2/ops_file.c187
1 files changed, 9 insertions, 178 deletions
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 80f3ff0bba7b..372dbcb3f7f3 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -43,27 +43,6 @@
#include "util.h"
#include "eaops.h"
-/* "bad" is for NFS support */
-struct filldir_bad_entry {
- char *fbe_name;
- unsigned int fbe_length;
- u64 fbe_offset;
- struct gfs2_inum fbe_inum;
- unsigned int fbe_type;
-};
-
-struct filldir_bad {
- struct gfs2_sbd *fdb_sbd;
-
- struct filldir_bad_entry *fdb_entry;
- unsigned int fdb_entry_num;
- unsigned int fdb_entry_off;
-
- char *fdb_name;
- unsigned int fdb_name_size;
- unsigned int fdb_name_off;
-};
-
/* For regular, non-NFS */
struct filldir_reg {
struct gfs2_sbd *fdr_sbd;
@@ -149,7 +128,7 @@ static loff_t gfs2_llseek(struct file *file, loff_t offset, int origin)
}
/**
- * filldir_reg_func - Report a directory entry to the caller of gfs2_dir_read()
+ * filldir_func - Report a directory entry to the caller of gfs2_dir_read()
* @opaque: opaque data used by the function
* @name: the name of the directory entry
* @length: the length of the name
@@ -160,9 +139,9 @@ static loff_t gfs2_llseek(struct file *file, loff_t offset, int origin)
* Returns: 0 on success, 1 if buffer full
*/
-static int filldir_reg_func(void *opaque, const char *name, unsigned int length,
- u64 offset, struct gfs2_inum *inum,
- unsigned int type)
+static int filldir_func(void *opaque, const char *name, unsigned int length,
+ u64 offset, struct gfs2_inum *inum,
+ unsigned int type)
{
struct filldir_reg *fdr = (struct filldir_reg *)opaque;
struct gfs2_sbd *sdp = fdr->fdr_sbd;
@@ -174,11 +153,9 @@ static int filldir_reg_func(void *opaque, const char *name, unsigned int length,
return 1;
if (fdr->fdr_prefetch && !(length == 1 && *name == '.')) {
- gfs2_glock_prefetch_num(sdp,
- inum->no_addr, &gfs2_inode_glops,
+ gfs2_glock_prefetch_num(sdp, inum->no_addr, &gfs2_inode_glops,
LM_ST_SHARED, LM_FLAG_TRY | LM_FLAG_ANY);
- gfs2_glock_prefetch_num(sdp,
- inum->no_addr, &gfs2_iopen_glops,
+ gfs2_glock_prefetch_num(sdp, inum->no_addr, &gfs2_iopen_glops,
LM_ST_SHARED, LM_FLAG_TRY);
}
@@ -186,7 +163,7 @@ static int filldir_reg_func(void *opaque, const char *name, unsigned int length,
}
/**
- * readdir_reg - Read directory entries from a directory
+ * gfs2_readdir - Read directory entries from a directory
* @file: The directory to read from
* @dirent: Buffer for dirents
* @filldir: Function used to do the copying
@@ -194,7 +171,7 @@ static int filldir_reg_func(void *opaque, const char *name, unsigned int length,
* Returns: errno
*/
-static int readdir_reg(struct file *file, void *dirent, filldir_t filldir)
+static int gfs2_readdir(struct file *file, void *dirent, filldir_t filldir)
{
struct inode *dir = file->f_mapping->host;
struct gfs2_inode *dip = GFS2_I(dir);
@@ -215,7 +192,7 @@ static int readdir_reg(struct file *file, void *dirent, filldir_t filldir)
return error;
}
- error = gfs2_dir_read(dir, &offset, &fdr, filldir_reg_func);
+ error = gfs2_dir_read(dir, &offset, &fdr, filldir_func);
gfs2_glock_dq_uninit(&d_gh);
@@ -224,152 +201,6 @@ static int readdir_reg(struct file *file, void *dirent, filldir_t filldir)
return error;
}
-/**
- * filldir_bad_func - Report a directory entry to the caller of gfs2_dir_read()
- * @opaque: opaque data used by the function
- * @name: the name of the directory entry
- * @length: the length of the name
- * @offset: the entry's offset in the directory
- * @inum: the inode number the entry points to
- * @type: the type of inode the entry points to
- *
- * For supporting NFS.
- *
- * Returns: 0 on success, 1 if buffer full
- */
-
-static int filldir_bad_func(void *opaque, const char *name, unsigned int length,
- u64 offset, struct gfs2_inum *inum,
- unsigned int type)
-{
- struct filldir_bad *fdb = (struct filldir_bad *)opaque;
- struct gfs2_sbd *sdp = fdb->fdb_sbd;
- struct filldir_bad_entry *fbe;
-
- if (fdb->fdb_entry_off == fdb->fdb_entry_num ||
- fdb->fdb_name_off + length > fdb->fdb_name_size)
- return 1;
-
- fbe = &fdb->fdb_entry[fdb->fdb_entry_off];
- fbe->fbe_name = fdb->fdb_name + fdb->fdb_name_off;
- memcpy(fbe->fbe_name, name, length);
- fbe->fbe_length = length;
- fbe->fbe_offset = offset;
- fbe->fbe_inum = *inum;
- fbe->fbe_type = type;
-
- fdb->fdb_entry_off++;
- fdb->fdb_name_off += length;
-
- if (!(length == 1 && *name == '.')) {
- gfs2_glock_prefetch_num(sdp,
- inum->no_addr, &gfs2_inode_glops,
- LM_ST_SHARED, LM_FLAG_TRY | LM_FLAG_ANY);
- gfs2_glock_prefetch_num(sdp,
- inum->no_addr, &gfs2_iopen_glops,
- LM_ST_SHARED, LM_FLAG_TRY);
- }
-
- return 0;
-}
-
-/**
- * readdir_bad - Read directory entries from a directory
- * @file: The directory to read from
- * @dirent: Buffer for dirents
- * @filldir: Function used to do the copying
- *
- * For supporting NFS.
- *
- * Returns: errno
- */
-
-static int readdir_bad(struct file *file, void *dirent, filldir_t filldir)
-{
- struct inode *dir = file->f_mapping->host;
- struct gfs2_inode *dip = GFS2_I(dir);
- struct gfs2_sbd *sdp = GFS2_SB(dir);
- struct filldir_reg fdr;
- unsigned int entries, size;
- struct filldir_bad *fdb;
- struct gfs2_holder d_gh;
- u64 offset = file->f_pos;
- unsigned int x;
- struct filldir_bad_entry *fbe;
- int error;
-
- entries = gfs2_tune_get(sdp, gt_entries_per_readdir);
- size = sizeof(struct filldir_bad) +
- entries * (sizeof(struct filldir_bad_entry) + GFS2_FAST_NAME_SIZE);
-
- fdb = kzalloc(size, GFP_KERNEL);
- if (!fdb)
- return -ENOMEM;
-
- fdb->fdb_sbd = sdp;
- fdb->fdb_entry = (struct filldir_bad_entry *)(fdb + 1);
- fdb->fdb_entry_num = entries;
- fdb->fdb_name = ((char *)fdb) + sizeof(struct filldir_bad) +
- entries * sizeof(struct filldir_bad_entry);
- fdb->fdb_name_size = entries * GFS2_FAST_NAME_SIZE;
-
- gfs2_holder_init(dip->i_gl, LM_ST_SHARED, GL_ATIME, &d_gh);
- error = gfs2_glock_nq_atime(&d_gh);
- if (error) {
- gfs2_holder_uninit(&d_gh);
- goto out;
- }
-
- error = gfs2_dir_read(dir, &offset, fdb, filldir_bad_func);
-
- gfs2_glock_dq_uninit(&d_gh);
-
- fdr.fdr_sbd = sdp;
- fdr.fdr_prefetch = 0;
- fdr.fdr_filldir = filldir;
- fdr.fdr_opaque = dirent;
-
- for (x = 0; x < fdb->fdb_entry_off; x++) {
- fbe = &fdb->fdb_entry[x];
-
- error = filldir_reg_func(&fdr,
- fbe->fbe_name, fbe->fbe_length,
- fbe->fbe_offset,
- &fbe->fbe_inum, fbe->fbe_type);
- if (error) {
- file->f_pos = fbe->fbe_offset;
- error = 0;
- goto out;
- }
- }
-
- file->f_pos = offset;
-
-out:
- kfree(fdb);
- return error;
-}
-
-/**
- * gfs2_readdir - Read directory entries from a directory
- * @file: The directory to read from
- * @dirent: Buffer for dirents
- * @filldir: Function used to do the copying
- *
- * Returns: errno
- */
-
-static int gfs2_readdir(struct file *file, void *dirent, filldir_t filldir)
-{
- int error;
-
- if (strcmp(current->comm, "nfsd") != 0)
- error = readdir_reg(file, dirent, filldir);
- else
- error = readdir_bad(file, dirent, filldir);
-
- return error;
-}
static const u32 iflags_to_gfs2[32] = {
[iflag_Sync] = GFS2_DIF_SYNC,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 16:37:20 +0000