From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
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Subject: [patch V2 19/36] net: vxge: Remove in_interrupt() conditionals
Date: Tue, 29 Sep 2020 22:25:28 +0200 [thread overview]
Message-ID: <20200929203501.384359804@linutronix.de> (raw)
In-Reply-To: 20200929202509.673358734@linutronix.de
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
vxge_os_dma_malloc() and vxge_os_dma_malloc_async() are both called from
callchains which use GFP_KERNEL allocations unconditionally or have other
requirements to be called from fully preemptible task context..
vxge_os_dma_malloc():
1) __vxge_hw_blockpool_create() <- GFP_KERNEL
2) __vxge_hw_mempool_grow() <- vzalloc()
__vxge_hw_blockpool_malloc()
vxge_os_dma_malloc_async():
1 __vxge_hw_mempool_grow() <- vzalloc()
__vxge_hw_blockpool_malloc()
__vxge_hw_blockpool_blocks_add()
2) vxge_hw_vpath_open() <- vzalloc()
__vxge_hw_blockpool_block_allocate()
That means neither of these functions needs a conditional allocation mode.
Remove the in_interrupt() conditional and use GFP_KERNEL.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
drivers/net/ethernet/neterion/vxge/vxge-config.c | 9 +--------
drivers/net/ethernet/neterion/vxge/vxge-config.h | 7 +------
2 files changed, 2 insertions(+), 14 deletions(-)
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -2303,16 +2303,9 @@ static void vxge_hw_blockpool_block_add(
static inline void
vxge_os_dma_malloc_async(struct pci_dev *pdev, void *devh, unsigned long size)
{
- gfp_t flags;
void *vaddr;
- if (in_interrupt())
- flags = GFP_ATOMIC | GFP_DMA;
- else
- flags = GFP_KERNEL | GFP_DMA;
-
- vaddr = kmalloc((size), flags);
-
+ vaddr = kmalloc(size, GFP_KERNEL | GFP_DMA);
vxge_hw_blockpool_block_add(devh, vaddr, size, pdev, pdev);
}
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.h
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.h
@@ -1899,18 +1899,13 @@ static inline void *vxge_os_dma_malloc(s
struct pci_dev **p_dmah,
struct pci_dev **p_dma_acch)
{
- gfp_t flags;
void *vaddr;
unsigned long misaligned = 0;
int realloc_flag = 0;
*p_dma_acch = *p_dmah = NULL;
- if (in_interrupt())
- flags = GFP_ATOMIC | GFP_DMA;
- else
- flags = GFP_KERNEL | GFP_DMA;
realloc:
- vaddr = kmalloc((size), flags);
+ vaddr = kmalloc(size, GFP_KERNEL | GFP_DMA);
if (vaddr == NULL)
return vaddr;
misaligned = (unsigned long)VXGE_ALIGN((unsigned long)vaddr,
next prev parent reply other threads:[~2020-09-29 20:39 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 20:25 [patch V2 00/36] net: in_interrupt() cleanup and fixes Thomas Gleixner
2020-09-29 20:25 ` [patch V2 01/36] net: enic: Cure the enic api locking trainwreck Thomas Gleixner
2020-09-29 20:25 ` [patch V2 02/36] net: caif: Remove unused caif SPI driver Thomas Gleixner
2020-09-29 20:25 ` [patch V2 03/36] net: Add netif_rx_any_context() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 04/36] net: caif: Use netif_rx_any_context() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 05/36] net: atheros: Remove WARN_ON(in_interrupt()) Thomas Gleixner
2020-09-29 20:25 ` [patch V2 06/36] net: cxgb3: Cleanup in_interrupt() usage Thomas Gleixner
2020-09-29 20:25 ` [patch V2 07/36] net: cxbg4: Remove pointless in_interrupt() check Thomas Gleixner
2020-09-29 20:25 ` [patch V2 08/36] net: e100: Remove in_interrupt() usage and pointless GFP_ATOMIC allocation Thomas Gleixner
2020-09-29 20:25 ` [patch V2 09/36] net: fec_mpc52xx: Replace in_interrupt() usage Thomas Gleixner
2020-09-29 20:25 ` [patch V2 10/36] net: intel: Remove in_interrupt() warnings Thomas Gleixner
2020-09-29 20:25 ` [patch V2 11/36] net: ionic: Replace in_interrupt() usage Thomas Gleixner
2020-09-29 23:06 ` Shannon Nelson
2020-09-29 20:25 ` [patch V2 12/36] net: ionic: Remove WARN_ON(in_interrupt()) Thomas Gleixner
2020-09-29 20:25 ` [patch V2 13/36] net: mdiobus: Remove WARN_ON_ONCE(in_interrupt()) Thomas Gleixner
2020-09-29 20:25 ` [patch V2 14/36] net: natsemi: Replace in_interrupt() usage Thomas Gleixner
2020-09-29 20:25 ` [patch V2 15/36] net: sfc: " Thomas Gleixner
2020-09-29 20:25 ` [patch V2 16/36] net: sfc: Use GFP_KERNEL in efx_ef10_try_update_nic_stats() Thomas Gleixner
2020-09-30 8:00 ` Martin Habets
2020-09-29 20:25 ` [patch V2 17/36] net: sunbmac: Replace in_interrupt() usage Thomas Gleixner
2020-09-29 20:25 ` [patch V2 18/36] net: sun3lance: Remove redundant checks in interrupt handler Thomas Gleixner
2020-09-29 20:25 ` Thomas Gleixner [this message]
2020-09-29 20:25 ` [patch V2 20/36] net: zd1211rw: Remove ZD_ASSERT(in_interrupt()) Thomas Gleixner
2020-09-29 20:25 ` [patch V2 21/36] net: usb: kaweth: Replace kaweth_control() with usb_control_msg() Thomas Gleixner
2020-09-30 6:22 ` Greg Kroah-Hartman
2020-09-29 20:25 ` [patch V2 22/36] net: usb: kaweth: Remove last user of kaweth_control() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 23/36] net: usb: net1080: Remove in_interrupt() comment Thomas Gleixner
2020-09-29 20:25 ` [patch V2 24/36] net: wan/lmc: Remove lmc_trace() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 25/36] net: brcmfmac: Replace in_interrupt() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 26/36] net: brcmfmac: Convey execution context via argument to brcmf_netif_rx() Thomas Gleixner
2020-09-29 22:03 ` Arend Van Spriel
2020-09-29 20:25 ` [patch V2 27/36] net: brcmfmac: Convey allocation mode as argument Thomas Gleixner
2020-09-29 22:07 ` Arend Van Spriel
2020-09-29 20:25 ` [patch V2 28/36] net: ipw2x00,iwlegacy,iwlwifi: Remove in_interrupt() from debug macros Thomas Gleixner
2020-09-29 20:25 ` [patch V2 29/36] net: iwlwifi: Remove in_interrupt() from tracing macro Thomas Gleixner
2020-09-29 20:25 ` [patch V2 30/36] net: hostap: Remove in_interrupt() usage Thomas Gleixner
2020-09-29 20:25 ` [patch V2 31/36] net: mwifiex: Use netif_rx_any_context() Thomas Gleixner
2020-09-29 20:25 ` [patch V2 32/36] net: libertas libertas_tf: Remove in_interrupt() from debug macro Thomas Gleixner
2020-09-29 20:25 ` [patch V2 33/36] net: libertas: Use netif_rx_any_context() Thomas Gleixner
2020-09-29 21:53 ` James Cameron
2020-09-29 20:25 ` [patch V2 34/36] net: rtlwifi: Remove void* casts related to delayed work Thomas Gleixner
2020-09-29 20:25 ` [patch V2 35/36] net: rtlwifi: Remove in_interrupt() from debug macro Thomas Gleixner
2020-09-29 20:25 ` [patch V2 36/36] net: rtlwifi: Replace in_interrupt() for context detection Thomas Gleixner
2020-09-29 21:22 ` [patch V2 00/36] net: in_interrupt() cleanup and fixes David Miller
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