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read: drop static "done" variable, we already have file_size in inode.

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This commit is contained in:
Azat Khuzhin 2013-09-29 20:22:03 +04:00
parent d976c4f65e
commit 7130573869
1 changed files with 0 additions and 10 deletions
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10
simple.c
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@ -253,10 +253,6 @@ struct simplefs_inode *simplefs_get_inode(struct super_block *sb,
ssize_t simplefs_read(struct file * filp, char __user * buf, size_t len, ssize_t simplefs_read(struct file * filp, char __user * buf, size_t len,
loff_t * ppos) loff_t * ppos)
{ {
/* Hack to make sure that we answer the read call only once and not loop infinitely.
* We need to implement support for filesize in inode to remove this hack */
static int done = 0;
/* After the commit dd37978c5 in the upstream linux kernel, /* After the commit dd37978c5 in the upstream linux kernel,
* we can use just filp->f_inode instead of the * we can use just filp->f_inode instead of the
* f->f_path.dentry->d_inode redirection */ * f->f_path.dentry->d_inode redirection */
@ -267,11 +263,6 @@ ssize_t simplefs_read(struct file * filp, char __user * buf, size_t len,
char *buffer; char *buffer;
int nbytes; int nbytes;
if (done) {
done = 0;
return 0;
}
if (*ppos >= inode->file_size) { if (*ppos >= inode->file_size) {
/* Read request with offset beyond the filesize */ /* Read request with offset beyond the filesize */
return 0; return 0;
@ -300,7 +291,6 @@ ssize_t simplefs_read(struct file * filp, char __user * buf, size_t len,
*ppos += nbytes; *ppos += nbytes;
done = 1;
return nbytes; return nbytes;
} }