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mtd/nvs: Trigger POLLPRI on config change

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Report the POLLPRI event if any configuration is updated.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3
2025-09-03 23:23:09 +08:00
committed by Xiang Xiao
parent c36c9f87d8
commit 7e5c970cf2
1 changed files with 29 additions and 2 deletions
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31
drivers/mtd/mtd_config_fs.c
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@@ -99,6 +99,7 @@ struct nvs_fs
uint32_t data_wra; /* Next data write address */
uint32_t step_addr; /* For traverse */
mutex_t nvs_lock;
FAR struct pollfd *fds;
};
/* Allocation Table Entry */
@@ -2048,6 +2049,11 @@ static int mtdconfig_ioctl(FAR struct file *filep, int cmd,
/* Write a nvs item. */
ret = nvs_write(fs, pdata);
if (ret >= 0 && fs->fds)
{
poll_notify(&fs->fds, 1, POLLPRI);
}
break;
case CFGDIOC_DELCONFIG:
@@ -2055,6 +2061,11 @@ static int mtdconfig_ioctl(FAR struct file *filep, int cmd,
/* Delete a nvs item. */
ret = nvs_delete(fs, pdata);
if (ret >= 0 && fs->fds)
{
poll_notify(&fs->fds, 1, POLLPRI);
}
break;
case CFGDIOC_FIRSTCONFIG:
@@ -2095,11 +2106,27 @@ static int mtdconfig_ioctl(FAR struct file *filep, int cmd,
static int mtdconfig_poll(FAR struct file *filep, FAR struct pollfd *fds,
bool setup)
{
if (setup)
FAR struct inode *inode = filep->f_inode;
FAR struct nvs_fs *fs = inode->i_private;
int ret;
ret = nxmutex_lock(&fs->nvs_lock);
if (ret < 0)
{
poll_notify(&fds, 1, POLLIN | POLLOUT);
return ret;
}
if (setup)
{
fs->fds = fds;
poll_notify(&fds, 1, POLLIN | POLLOUT);
}
else
{
fs->fds = NULL;
}
nxmutex_unlock(&fs->nvs_lock);
return OK;
}